| 单词 | phosphoric acid |
| 例句 | Brushed nickel finishes, which are rubbed with an abrasive while still at the factory to create their special look, are especially susceptible to damage from bathroom and kitchen cleaners that contain low-concentration phosphoric acid. How to deal with corrosion on brushed nickel faucets 2018-04-13T04:00:00Z Aqueous solutions of phosphoric acid and potassium hydroxide react to produce aqueous potassium dihydrogen phosphate and liquid water. Chemistry 2019-02-14T00:00:00Z Fertilizer is a lucrative business, but for every ton of phosphoric acid produced, approximately 5 tons of phosphogypsum are too. Environmentalists target mountains of fertilizer waste 2022-04-20T04:00:00Z He cried when doctors told him he would have to give up his beloved Coca-Cola because of the phosphoric acid. UCLA lineman Jon Gaines II inspired by his dad, who endures dialysis to see him play 2021-09-29T04:00:00Z For every ton of desirable phosphoric acid produced for fertilizer, more than five tons of phosphogypsum waste remains. The wastewater disaster in Florida is a symptom of how we grow our food 2021-04-07T04:00:00Z But phosphorus-containing additives, such as phosphoric acid and disodium phosphate, are found in a variety of processed foods — including soda, baked goods, dairy products and fast food. Additives found in cold cuts, ice cream, bread, other processed food cause concern 2020-09-25T04:00:00Z However, it is possible to prepare both hydrogen bromide and hydrogen iodide using an acid such as phosphoric acid because it is a weaker oxidizing agent. Chemistry 2019-02-14T00:00:00Z But gypsum stacks and wastewater from phosphoric acid production are exempt from the EPA's hazardous waste standards, which establish base federal criteria for managing waste from "cradle to grave." Environmentalists target mountains of fertilizer waste 2022-04-20T04:00:00Z But focusing on sustainability doesn’t equal skimping on creativity: A tincture in Chetiyawardana’s dry “Bone Martini” uses chicken bones dissolved in phosphoric acid to impart savory mineral flavors. The best things to see, drink and do in the D.C. area in February 2020-01-30T05:00:00Z There are no calories, no sugars, no artificial ingredients, no castoreum, no genetically modified organisms and no added phosphoric acid, according to the company. LaCroix Fizzy Water Is Everyone’s Favorite. Nobody Knows What’s In It 2017-09-13T04:00:00Z The second major group of insecticides, the organic phosphates—esters of phosphoric acid—are among the most poisonous chemicals in the world. Silent Spring—I 2017-01-03T05:00:00Z One use of phosphoric acid is as an additive to many soft drinks. Chemistry 2019-02-14T00:00:00Z Whether the sugar and phosphoric acid are bad depends on your perspective. Sugary Drinks Tied to Accelerated Brain Aging 2017-04-24T04:00:00Z An acid spill closed the M11 near Stansted Airport for more than 12 hours last year after a lorry overturned, pouring melamine formaldehyde resin and phosphoric acid across several lanes. Salmon and yeast: The strangest spillages on our roads - BBC News 2015-11-12T05:00:00Z "This sets the standard for our continuing enforcement ... in the entire phosphoric acid industry. And, it reflects our emphasis on working jointly with impacted states." Feds reach nearly $2B settlement in hazardous waste lawsuit with fertilizer maker Mosaic 2015-10-01T04:00:00Z As Lebek describes it, the ash is first dissolved into diluted phosphoric acid. The Future of Sewage Is Power and Profits 2015-08-24T04:00:00Z As an instructor is preparing for an experiment, he requires 225 g phosphoric acid. Chemistry 2019-02-14T00:00:00Z After that, the piece took a bath in a phosphoric acid solution. Jackson-based trombone duo takes to international market 2015-08-08T04:00:00Z The charcoal bed is impregnated with phosphoric acid, which enables it to absorb ammonia. Quora Question: How Does NASA Manage Odor Inside International Space Station (ISS)? The chemicals were identified as melamine formaldehyde resin and phosphoric acid, Essex Fire and Rescue Service said. M11 partially reopens after spill 2014-07-04T04:00:00Z How about these scary sounding chemicals: phosphoric acid and potassium benzoate? Guest Post: Waterless Fracking? 2012-10-10T19:45:03.457Z Determine the standard free energy of formation, for phosphoric acid. Chemistry 2019-02-14T00:00:00Z The phosphoric acid is at first slightly diminished, but later undergoes an increase. A System of Practical Medicine by American Authors, Vol. I Volume 1: Pathology and General Diseases 2012-03-17T02:00:54.097Z There are also from 25 ℔ to 30 ℔ of potash in the growth, of which nine-tenths would return to the roots, with about half the phosphoric acid and a very small proportion of the lime. Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 6 "Home, Daniel" to "Hortensius, Quintus" 2012-03-15T02:00:32.250Z I gave her a homœopathic dose of phosphoric acid and stannum; and, to the surprise of all around her, the night sweats did not break out at their usual hour,—three o’clock in the morning. Curiosities of Medical Experience 2012-03-09T03:00:20.410Z It is highly probable that such fungi are particularly exacting owing to their exhausting demands for compounds of potassium, phosphoric acid, and other bodies. Disease in Plants 2012-03-01T03:00:22Z The phosphorus pentoxide used to produce phosphoric acid for cola soft drinks is prepared by burning phosphorus in oxygen. Chemistry 2019-02-14T00:00:00Z The amount of phosphoric acid does not appear to be affected by the disease. A System of Practical Medicine by American Authors, Vol. I Volume 1: Pathology and General Diseases 2012-03-17T02:00:54.097Z Similar particulars are also given in relation to the phosphoric acid and the potash consumed in the food, removed in the milk, and remaining for manure, &c. Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 9 "Dagupan" to "David" 2012-02-11T03:03:39.807Z The elementary phosphorus I saw being made was destined to be turned into phosphoric acid. Well Blog: Looking Inside the Twinkie 2012-01-20T18:20:16Z Most citrus sodas mix in the stuff to give drinks their tangy bite, while most colas, such as Coca Cola and Pepsi, incorporate phosphoric acid for the same effect. Can Mountain Dew Really Dissolve a Mouse Carcass? 2012-01-05T23:15:00.277Z He further described the properties of the substance produced by burning phosphorus, gave it the name of phosphoric acid, and described some of the substances formed by combining it with various bases. Heroes of Science Chemists 2011-12-09T03:00:21.047Z A good formula is one part nitrate of soda, two parts of muriate of potash, two parts of high grade phosphoric acid. Dwarf Fruit Trees Their propagation, pruning, and general management, adapted to the United States and Canada 2011-11-17T03:00:30.320Z Only the most important components are shown in the table, but all granites contain also small amounts of zirconia, titanium oxide, phosphoric acid, sulphur, oxides of barium, strontium, manganese and water. Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 3 "Gordon, Lord George" to "Grasses" 2011-11-13T03:00:13.177Z By the simplest experiment, any one may satisfy himself that rain water filtered through field or garden soil does not dissolve out a trace of potash, silicic acid, ammonia, or phosphoric acid. Man and Nature or, Physical Geography as Modified by Human Action 2011-11-11T03:00:34.027Z The reagents in common use are acetic acid; magnesium chloride, used for a glue employed by printers; hydrochloric acid and zinc sulphate; nitric acid and lead sulphate; and phosphoric acid and ammonium carbonate. Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 2 "Gloss" to "Gordon, Charles George" 2011-10-31T02:00:28.703Z It is probably some modification of the phosphoric acid. Heads of Lectures on a Course of Experimental Philosophy: Particularly Including Chemistry 2011-10-11T02:01:05.817Z Instead of hydrochloric acid some French makers use phosphoric acid. Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 5 "Gassendi, Pierre" to "Geocentric" 2011-09-02T02:00:20.450Z Such solvents are boracic acid, borax, phosphate of soda, phosphoric acid, &c.:—the one chiefly employed by M. Ebelman is boracic acid. The International Monthly, Volume 4, No. 1, August, 1851 2011-05-18T02:00:11.200Z When a fertilizer contains nitrogen, phosphoric acid and potash it is said to be complete. Farm Gardening with Hints on Cheap Manuring Quick Cash Crops and How to Grow Them 2011-05-10T02:00:58.433Z This material contains coarse particles of bagasse together with other impurities including the lime and phosphoric acid which were used in this work. The Philippine Agricultural Review Vol. VIII, First Quarter, 1915 No. 1 2011-04-13T02:00:12.527Z The earth of animal bones is calcareous united to the phosphoric acid. Heads of Lectures on a Course of Experimental Philosophy: Particularly Including Chemistry 2011-10-11T02:01:05.817Z This is in part due to the increased disintegration of proteids setting free sulphur and phosphorus, which, oxidized into sulphuric and phosphoric acids, combine with the ammonia which would otherwise have been changed to urea. Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 3 "Fenton, Edward" to "Finistere" 2011-03-14T03:01:00.580Z United Technologies produces a phosphoric acid fuel cell commercially, and is working on a number of other fuel cell programs. What Bloom Energy Needs To Prove 2010-02-24T11:00:00Z Either ground bone or acid phosphate will give the needed phosphoric acid. Farm Gardening with Hints on Cheap Manuring Quick Cash Crops and How to Grow Them 2011-05-10T02:00:58.433Z In any event, it makes a most valuable fertilizer because of the organic matter, nitrogenous bodies, phosphoric acid, and lime that it contains. The Philippine Agricultural Review Vol. VIII, First Quarter, 1915 No. 1 2011-04-13T02:00:12.527Z The union of phosphoric acid with iron makes it brittle when cold, commonly called cold short; and the union of arsenic makes it brittle when hot, thence called red short. Heads of Lectures on a Course of Experimental Philosophy: Particularly Including Chemistry 2011-10-11T02:01:05.817Z These 37 kilos of plant food that are annually taken from each hectare may be roughly subdivided as follows: 18 kilos of nitrogen,10 kilos of potash,9 kilos of phosphoric acid. Cacao Culture in the Philippines The rejected husks are thrown together in immense heaps, which are finally burned and the ashes, exceedingly rich in potash and phosphoric acid, are left to blow away. The Cocoanut With reference to its products and cultivation in the Philippines These three things are nitrogen, phosphoric acid and potash. Farm Gardening with Hints on Cheap Manuring Quick Cash Crops and How to Grow Them 2011-05-10T02:00:58.433Z Usually sulphurous acid is used for this purpose, but sometimes phosphoric acid, or a form of it, is employed. The Philippine Agricultural Review Vol. VIII, First Quarter, 1915 No. 1 2011-04-13T02:00:12.527Z In burning it unites with the dephlogisticated air of the atmosphere, and in this manner the purest phosphoric acid is produced. Heads of Lectures on a Course of Experimental Philosophy: Particularly Including Chemistry 2011-10-11T02:01:05.817Z Whether the analogy should be pursued even further remained doubtful, although some suspicion lingered on for a while that phosphoric acid might actually be a modified sulfuric acid. History of Phosphorus With labor at 1 peso per diem and at the present price of potash and phosphoric acid, all the husks in excess of 300 per diem which could be hauled would be clear profit. The Cocoanut With reference to its products and cultivation in the Philippines In some soils the potash will be preferable; in others, phosphoric acid will do more good. Farm Gardening with Hints on Cheap Manuring Quick Cash Crops and How to Grow Them 2011-05-10T02:00:58.433Z Phosphoric acid.—It is sometimes advisable to apply a form of phosphoric acid as a clarifying and precipitating agent after the lime. The Philippine Agricultural Review Vol. VIII, First Quarter, 1915 No. 1 2011-04-13T02:00:12.527Z The nucleic acids are complex compounds consisting of a carbohydrate, phosphoric acid, two purine bases, and two pyrimidine bases. The Chemistry of Plant Life Long before he wrote, it was known that phosphoric acid combines not only with inorganic bases to form salts, but with alcohols to form esters. History of Phosphorus These plants always contain sulphuric acid, and sometimes in as large a quantity as 8½ per cent., combined with potash: magnesia also and phosphoric acid are constant ingredients. Principles of Geology or, The Modern Changes of the Earth and its Inhabitants Considered as Illustrative of Geology Barnyard manure is a perfect fertilizer, especially when preserved with kainit or acid phosphate; and a leguminous crop, if stimulated with phosphoric acid and potash, leaves the land in fine cropping condition. Farm Gardening with Hints on Cheap Manuring Quick Cash Crops and How to Grow Them 2011-05-10T02:00:58.433Z It is a patented preparation and is made by the absorption of phosphoric acid by a powdery compound known as “Kieselguhr.” The Philippine Agricultural Review Vol. VIII, First Quarter, 1915 No. 1 2011-04-13T02:00:12.527Z A good formula for such a general purpose fertilizer is 4 to 5 per cent nitrogen, 7 to 9 per cent phosphoric acid and 7 to 10 per cent potash to the ton. A Living from the Land That this alcohol would combine with phosphoric acid could be predicted, but that the ester, as obtained by Pelouze, still contained free acidic functions and formed a water-soluble barium salt was a new experience. History of Phosphorus Propylene is liberated during the reaction, and the phosphoric acid ester of meta-cresol which is formed is then fused with potash. Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 6 "Coucy-le-Château" to "Crocodile" Complete fertilizers or those containing phosphoric acid and potash must be supplied. Farm Gardening with Hints on Cheap Manuring Quick Cash Crops and How to Grow Them 2011-05-10T02:00:58.433Z This work is repeated several times until the finished product, which is very hydroscopic, contains about 25 per cent of phosphoric acid. The Philippine Agricultural Review Vol. VIII, First Quarter, 1915 No. 1 2011-04-13T02:00:12.527Z It has the activity which would be calculated from the proportion of uranium present, the copper and phosphoric acid contributing no activity. A Brief Account of Radio-activity Since 1926, however, the name phosphagens has been reserved for a group of organic substances that release their phosphoric acid very readily. History of Phosphorus Using average prices paid for nitrogen, phosphoric acid and potash when bought in large quantities and in good forms, these ingredients, in a ton of cotton seed, amount to $9.00 worth of fertilizing material. Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 5 "Cosway" to "Coucy" Where phosphoric acid is necessary, it can be had in the form of ground bone or acidulated rock, and potash can be had in the form of sulphate or as kainit. Farm Gardening with Hints on Cheap Manuring Quick Cash Crops and How to Grow Them 2011-05-10T02:00:58.433Z The quick-lime and sulphites are especially susceptible to moisture, while the greatest danger of loss, when phosphoric acid compounds are stored, will result from leakage. The Philippine Agricultural Review Vol. VIII, First Quarter, 1915 No. 1 2011-04-13T02:00:12.527Z It is estimated that an acre of apples in good bearing removes annually about forty-nine pounds of nitrogen, thirty-eight pounds of phosphoric acid, and seventy-two pounds of potash. The Apple In vertebrates, the basis for the phosphoric acid is creatine, whereas invertebrates have arginine instead. History of Phosphorus The hulls thus burned produced an ash containing an average of 9% of phosphoric acid and 24% of potash—a very valuable fertilizer in itself, and one eagerly sought by growers of tobacco and vegetables. Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 5 "Cosway" to "Coucy" Nitrates and phosphoric acid that lie in the topmost stratum of the soil are among the destructible instruments of agriculture. Essentials of Economic Theory As Applied to Modern Problems of Industry and Public Policy If phosphoric acid is absent, aluminium, chromium and ferric hydrates are precipitated. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 1 "Châtelet" to "Chicago" The application is obvious; in order to successfully raise apples there must be an abundance of potash and of phosphoric acid in the soil, and these ingredients must be in an available form. The Apple If the muscle is at rest, the compound contains three molecules of phosphoric acid, linked through oxygen atoms. History of Phosphorus It is well known that soils deficient in potash, will naturally produce one kind of plants, while soils deficient in phosphoric acid will produce plants of another species, etc. The Elements of Agriculture A Book for Young Farmers, with Questions Prepared for the Use of Schools When the apparatus has cooled, it is weighed and unluted; the tare of the instrument being allowed, the weight is that of the phosphoric acid contained. Elements of Chemistry, In a New Systematic Order, Containing all the Modern Discoveries If, however, phosphoric acid is present in the original substance, we may here obtain a precipitate of the phosphates of the remaining metals, together with aluminium, chromium and ferric hydrates. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 1 "Châtelet" to "Chicago" It is generally found in combination with oxygen, forming phosphoric acid. A Treatise on Anatomy, Physiology, and Hygiene (Revised Edition) Organic esters of phosphoric acids are used as insecticides. History of Phosphorus Phosphate—a compound of phosphoric acid with an alkali. The Elements of Agriculture A Book for Young Farmers, with Questions Prepared for the Use of Schools As phosphorus has a sufficient affinity for oxygen to attract it from the nitric and muriatic acids, we may form phosphoric acid, by means of these acids, in a very simple and cheap manner. Elements of Chemistry, In a New Systematic Order, Containing all the Modern Discoveries The phosphates of aluminium, chromium and iron are precipitated, and the solution contains the same metals as if phosphoric acid had been absent. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 1 "Châtelet" to "Chicago" The phosphoric acid is usually combined with alkaline bases; as lime in the bones, forming phosphate of lime. A Treatise on Anatomy, Physiology, and Hygiene (Revised Edition) Treatment with sulfuric acid decomposed these materials into a solid residue and dissolved phosphoric acid. History of Phosphorus For instance, we may find that a soil contains a very little phosphoric acid, and no potash. The Elements of Agriculture A Book for Young Farmers, with Questions Prepared for the Use of Schools Thus, all the neutral salts having sulphuric acid in their composition are named sulphats; those formed by the phosphoric acid, phosphats, &c. Elements of Chemistry, In a New Systematic Order, Containing all the Modern Discoveries The elimination of phosphoric acid is increased, especially when compared with the nitrogen excreted. Criminal Man According to the Classification of Cesare Lombroso Soda, magnesia, and phosphoric acid also enter quite largely into the composition of this plant. The Peanut Plant Its Cultivation And Uses Heat resistance had been considered one of the outstanding characteristics of phosphoric acid. History of Phosphorus What is usually the best source from which to obtain phosphoric acid? The Elements of Agriculture A Book for Young Farmers, with Questions Prepared for the Use of Schools This acid unites with the calcareous earth of the bones into a sulphat of lime, and the phosphoric acid remains free in the liquor. Elements of Chemistry, In a New Systematic Order, Containing all the Modern Discoveries Because the coffee tree takes potash, nitrogen, and phosphoric acid from the soil, the scheme of fertilizing is to restore these elements. All About Coffee The most common source of phosphorus, usually referred to as phosphoric acid, is acid phosphate. The Pecan and its Culture Among the analogies and generalizations by which the research on phosphoric acid was supported, and to the results of which it contributed a full share, was the new theory of acids. History of Phosphorus The organic part, containing nitrogen, forms ammonia, and the inorganic part supplies the much needed phosphoric acid to the soil. The Elements of Agriculture A Book for Young Farmers, with Questions Prepared for the Use of Schools Hence the acids formed by the oxygenation of sulphur, phosphorus, charcoal, &c. are called sulphuric acid, phosphoric acid, carbonic acid, &c. Elements of Chemistry, In a New Systematic Order, Containing all the Modern Discoveries The use of a large proportion of phosphoric acid tends to produce soft fruit with less distinctly acid flavor; of potash, to smaller growth of vine and firm but more acid fruit. Tomato Culture: A Practical Treatise on the Tomato On the whole, acid phosphate is as satisfactory as any material as a source of phosphoric acid, and the goods with the highest percentage are usually the most economical in the end. The Pecan and its Culture The study of phosphoric acids led to important new concepts in theoretical chemistry. History of Phosphorus Phosphate of lime, as it exists in bones, consists of one atom of phosphoric acid and three atoms of lime. The Elements of Agriculture A Book for Young Farmers, with Questions Prepared for the Use of Schools The phosphorus is then set on fire by means of a burning-glass, and is allowed to burn till the cloud of concrete phosphoric acid stops the combustion, oxygen gas being continually supplied from the gazometer. Elements of Chemistry, In a New Systematic Order, Containing all the Modern Discoveries Modes of Ultimate Disposal of Sewage.—The chief constituents of sewage are organic matter, mineral salts, nitrogenous substances, potash, and phosphoric acid. The Home Medical Library, Volume V (of VI) For the growth of the young trees, a larger amount of nitrogen and a relatively smaller amount of phosphoric acid and potash are required, while for older trees, the reverse is true. The Pecan and its Culture One hundred years after the discovery of “cold light,” the presence of phosphorus in plants and animals was ascertained, and its form was established as a compound of phosphoric acid. History of Phosphorus Lime in combination with phosphoric acid forms the valuable phosphate of lime, of which so large a portion of the ash of grain, and the bones of animals, is formed. The Elements of Agriculture A Book for Young Farmers, with Questions Prepared for the Use of Schools Hence we have a phosphorous and a phosphoric acid, an acetous and an acetic acid; and so on, for others in similar circumstances. Elements of Chemistry, In a New Systematic Order, Containing all the Modern Discoveries A ton of wheat takes out of the soil on an average 47 pounds of nitrogen, 18 pounds of phosphoric acid, 12 pounds of potash. The Economic Aspect of Geology Evaporate to a thin syrup, acidify strongly with phosphoric acid. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. The main difficulty that had to be overcome was that these oxidation products existed in so many forms, not only several stages of oxidation, but, in addition, aggregations and condensations of the phosphoric acids. History of Phosphorus In what part of the grain does phosphoric acid exist most largely? The Elements of Agriculture A Book for Young Farmers, with Questions Prepared for the Use of Schools I do not include the phosphoric acid amongst these, because it is found in all the kingdoms of nature. Elements of Chemistry, In a New Systematic Order, Containing all the Modern Discoveries They are also used in the manufacture of phosphorus, phosphoric acid, and other phosphorus compounds, for matches, for certain metallurgical operations, and for gases used in military operations. The Economic Aspect of Geology Adjust reaction to +30 by the addition of normal phosphoric acid; and filter. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. A compound of adenine, ribose, and phosphoric acid was found in yeast, blood, and in skeletal muscle of mammals. History of Phosphorus It may be well to observe that the phosphoric acid of grain exists most largely in the hard portions near the shell, or bran. The Elements of Agriculture A Book for Young Farmers, with Questions Prepared for the Use of Schools All these concretions contain phosphoric acid, mucus, and calcareous earth in different proportions; and are probably so far analogous in respect to their component parts as well as their mode of formation. Zoonomia, Vol. II Or, the Laws of Organic Life In intervals between tenderer and more intimate exchange of sentiments they discussed such subjects as lime, nitrogen, phosphoric acid, and the rotation of crops. Athalie The samples which have been analysed have differed very much in quality, some containing as much as 9 per cent of nitrogen and 25 per cent of phosphoric acid. Manures and the principles of manuring The corresponding derivatives of guanine, cytosine, and uracil were also found, and they are active in the temporary transfer of phosphoric acid groups in biological processes. History of Phosphorus The inorganic matter of plants consists of potash, soda, lime, magnesia, sulphuric acid, phosphoric acid, chlorine, silica, oxide of iron, and oxide of manganese. The Elements of Agriculture A Book for Young Farmers, with Questions Prepared for the Use of Schools The exchange of which phosphoric acid for carbonic acid, or fixed air, converts shells into limestone, producing mountains of marble, or calcareous strata. Zoonomia, Vol. II Or, the Laws of Organic Life It is usually rich in potash, the predominating felspar being orthoclase, but somewhat deficient in nitrogen and phosphoric acid. Fruits of Queensland The commercial article contains, on an average, about 12 per cent of nitrogen, and slightly over 1 per cent of phosphoric acid. Manures and the principles of manuring He found coenzyme A which is a nucleotide containing phosphoric acid. History of Phosphorus Thus—one may take from the soil large quantities of potash, another of phosphoric acid, and another of lime. The Elements of Agriculture A Book for Young Farmers, with Questions Prepared for the Use of Schools As calcareous earth abounds every where, is the want of phosphoric acid the remote cause? Zoonomia, Vol. II Or, the Laws of Organic Life Spreading manure will never teach him that stable manure should be supplemented with phosphoric acid in order to get the best results. The Young Farmer: Some Things He Should Know The amount of phosphoric acid they contain has been found by various investigators to range from 6 to 10 per cent. Manures and the principles of manuring Of the other agriculturally valuable components, sulphuric acid has the highest average; then follows magnesia; then phosphoric acid, and lastly, potash and soda: all of these, however, may be nearly or quite lacking. Peat and its Uses as Fertilizer and Fuel The straw is not the most important part of the plant as food, and therefore requires but little phosphoric acid. The Elements of Agriculture A Book for Young Farmers, with Questions Prepared for the Use of Schools Calcined egg-shells are said to promote urine, perhaps from the phosphoric acid they contain. Zoonomia, Vol. II Or, the Laws of Organic Life It follows, therefore, that if two kinds of feeding stuff produce equal amounts of meat, that the preference should be given to that which contains the more nitrogen and phosphoric acid. The Stock-Feeder's Manual the chemistry of food in relation to the breeding and feeding of live stock In order to do so, however, it must be able to obtain plenty of phosphoric acid, and this is only possible where there is a decided excess of phosphoric acid present in the soil. Manures and the principles of manuring In the ashes of peats, we almost always find small quantities of sulphate of lime, magnesia and phosphoric acid. Peat and its Uses as Fertilizer and Fuel What course would you pursue to raise potatoes on a soil containing a very little phosphoric acid and no potash? 1st. The Elements of Agriculture A Book for Young Farmers, with Questions Prepared for the Use of Schools The two last consist of calcareous earth united to phosphoric acid, and the Armenian bole and marl may contain iron. Zoonomia, Vol. II Or, the Laws of Organic Life The richer food is in nitrogen and phosphoric acid, the more valuable will be the manure it yields. The Stock-Feeder's Manual the chemistry of food in relation to the breeding and feeding of live stock The discovery that its phosphoric acid existed, as has been already explained, as a tetrabasic phosphate of lime, has strengthened the opinion that this is the best method of application. Manures and the principles of manuring The plants that produce peat contain considerable proportions of lime, magnesia, alkalies, sulphuric acid, chlorine and phosphoric acid, as seen from the following analysis by Websky. Peat and its Uses as Fertilizer and Fuel This will be spoken of more at length under the head of 'phosphoric acid.' The Elements of Agriculture A Book for Young Farmers, with Questions Prepared for the Use of Schools The percentage falls below that of limestone, but in addition there is a little nitrogen and phosphoric acid. Right Use of Lime in Soil Improvement The white, vapor-like matter into which phosphorus is converted by its combustion, is termed phosphoric acid. The Stock-Feeder's Manual the chemistry of food in relation to the breeding and feeding of live stock This mixture is said to extract, in addition to the phosphoric acid, a certain proportion of the ammonia; but the amount is so small as scarcely to be worth considering. Manures and the principles of manuring Potash and phosphoric acid are three times more abundant in C than in the others. Peat and its Uses as Fertilizer and Fuel How large a part of the ashes of grain consists of phosphoric acid? The Elements of Agriculture A Book for Young Farmers, with Questions Prepared for the Use of Schools It contains a little nitrogen and phosphoric acid, partially available, as an offset to coarseness and some lack of purity, as compared with the highest grade of fine stone. Right Use of Lime in Soil Improvement Especially is this variation marked in regard to the protein, ash, and phosphoric acid contents, which exhibit a marked decrease approximately in direct proportion to the amount of cerealin or corn substituted for malt. A Study Of American Beers and Ales That is to say, that the phosphoric acid in the sludge did not exert more than one-fifth of its theoretical effect. Manures and the principles of manuring Australian wheat soils are naturally strong in nitrogen and potash, but in many cases are deficient in available phosphoric acid. Wheat Growing in Australia We come now to the consideration of one of the most important of all subjects connected with agriculture, that is, phosphoric acid. The Elements of Agriculture A Book for Young Farmers, with Questions Prepared for the Use of Schools In addition to these, the basaltic rocks are found to contain appreciable quantities of phosphoric acid, so that they are in a condition to yield to the plant almost all its necessary constituents. Elements of Agricultural Chemistry The actual percentages of protein, ash, and phosphoric acid found by analysis were then calculated to the basis of a uniform wort containing 15 per cent of solids. A Study Of American Beers and Ales Urine, when applied alone, is lacking in phosphoric acid, of which it contains mere traces. Manures and the principles of manuring The soil is naturally rich in potash, nitrogen, and lime, but requires superphosphate, as the percentage of phosphoric acid is low. Wheat Growing in Australia The cultivation of our whole country has been such, as to take away the phosphoric acid from the soil without returning it, except in very minute quantities. The Elements of Agriculture A Book for Young Farmers, with Questions Prepared for the Use of Schools The manufacture of superphosphates depends on the existence of two different compounds of phosphoric acid and lime, one of which contains three times as much lime as the other. Elements of Agricultural Chemistry He did observe, however, a material reduction of the phosphoric acid due to the use of substitutes. A Study Of American Beers and Ales Some of these substances contain much nitrogen or phosphoric acid, but in their natural condition ferment when applied to the soil at a slow rate. Manures and the principles of manuring As Australian wheat soils possess abundance of nitrogen and sufficient potash, but are mostly deficient in phosphoric acid, the manure chiefly used on the wheatfields is superphosphates. Wheat Growing in Australia How have the Genesee and Mohawk valleys been affected by this removal of phosphoric acid? The Elements of Agriculture A Book for Young Farmers, with Questions Prepared for the Use of Schools Chlorine is met with only in the part soluble in water, phosphoric acid only in that soluble in acids, while sulphuric acid occurs in both the last-named divisions. Elements of Agricultural Chemistry The use of rice, corn or corn products, and brewer's sugar as substitutes for malt reduces the content of protein, ash, and phosphoric acid in the finished beer. A Study Of American Beers and Ales Meadow-hay, it will be seen, of all crops removes the least phosphoric acid. Manures and the principles of manuring Fertilizers.—The light soils of Maryland, New Jersey, and the southern states are not naturally rich in phosphoric acid or potash. Crops and Methods for Soil Improvement The source mentioned, from which to obtain phosphoric acid, is the bones of animals. The Elements of Agriculture A Book for Young Farmers, with Questions Prepared for the Use of Schools All of them are particularly rich in potash, and contain but a small proportion of phosphoric acid. Elements of Agricultural Chemistry It will be seen that in none of these samples is the ash, phosphoric acid, or protein so high as the minimum found in the all-malt beers. A Study Of American Beers and Ales Nitrogen, phosphoric acid, and potash exist in the common manures, as has already been pointed out, in different states of availability. Manures and the principles of manuring When yields of crops tend to decrease, the only plant-foods with which we are concerned are nitrogen, phosphoric acid, and potash. Crops and Methods for Soil Improvement It is a combination of alumina, water, and phosphoric acid, and is also unique in being the only known valuable stone containing a phosphate. The Chemistry, Properties and Tests of Precious Stones It contains about fourteen per cent. of albumen, and is rich in phosphoric acid. Cattle and Their Diseases Embracing Their History and Breeds, Crossing and Breeding, And Feeding and Management; With the Diseases to which They are Subject, And The Remedies Best Adapted to their Cure Plants of all sorts—in pots, in the garden or in a ten-acre lot—require three kinds of food elements: nitrogen, phosphoric acid and potash. Gardening Indoors and Under Glass A Practical Guide to the Planting, Care and Propagation of House Plants, and to the Construction and Management of Hotbed, Coldframe and Small Greenhouse Of these, however, only six are probably absolutely necessary for plant-growth—viz., potash, lime, magnesia, oxide of iron, phosphoric acid, and sulphuric acid. Manures and the principles of manuring The manufacturer gets his supply of phosphoric acid from rock, bone, or tankage exactly as does the home-mixer. Crops and Methods for Soil Improvement Very little is known in regard to the need of phosphates or phosphoric acid.... Human Foods and Their Nutritive Value On this account molybdic acid is often used in the estimation of the phosphoric acid present in a substance. An Elementary Study of Chemistry Some of the phosphoric acid and considerable amounts of the potash are also found in the liquid manure. Agriculture for Beginners Revised Edition A point of considerable interest is the quantity per acre different soils contain of nitrogen, phosphoric acid, and potash. Manures and the principles of manuring An acid phosphate may be poor in phosphoric acid because low-grade rock was used in its manufacture. Crops and Methods for Soil Improvement How do you test a baking powder for phosphoric acid? Human Foods and Their Nutritive Value Since phosphoric acid has three replaceable hydrogen atoms, three sodium phosphates are possible,—two acid salts and one normal. An Elementary Study of Chemistry The three most valuable things in commercial fertilizers are nitrogen, potash, and phosphoric acid. Agriculture for Beginners Revised Edition Mangels are, from their deeper roots, more capable of drawing their supply of phosphoric acid from the soil than turnips. Manures and the principles of manuring The fertilizer contains 10 pounds of phosphoric acid to the 100 pounds. Crops and Methods for Soil Improvement Elements of Fertility.—Three elements are necessary for the growth of apple trees, nitrogen, phosphoric acid, and potash. Apple Growing With phosphoric acid magnesium forms salts similar to those of calcium. An Elementary Study of Chemistry This treatment changes the phosphoric acid into a form ready for plant use. Agriculture for Beginners Revised Edition Calcareous earth, absorptive power of, 98; stones, phosphoric acid in, 211. Manures and the principles of manuring What he has really learned, then, is that an acre of this land, when seeded to wheat, needs 9 pounds of nitrogen, 30 pounds of phosphoric acid, and 18 pounds of potash. Crops and Methods for Soil Improvement The effect of phosphoric acid and potash on the tree and fruit is much more uncertain. Apple Growing Could phosphoric acid be substituted for sulphuric acid in the preparation of the common acids? An Elementary Study of Chemistry The ordinary cotton fertilizer consists principally of nitrogen, of potash, and of phosphoric acid. Agriculture for Beginners Revised Edition It will further be noticed that the amounts of phosphoric acid removed by the different crops differ very much less than those of nitrogen and potash. Manures and the principles of manuring Thirty pounds of phosphoric acid are wanted for an acre. Crops and Methods for Soil Improvement Such an application will not only go far toward supplying the necessary nitrogen, phosphoric acid, and potash, but especially if coarse will add considerable humus and improve the physical condition of the soil. Apple Growing On cooling from the fused state it forms a glassy solid, and on this account is often called glacial phosphoric acid. An Elementary Study of Chemistry The sweet potato draws potash, nitrogen, and phosphoric acid from the soil, but in applying these as fertilizers the grower must study and know his own soil. Agriculture for Beginners Revised Edition This is obtained by dividing the market value of a manure per ton by the percentage of nitrogen, phosphoric acid, and potash it contains. Manures and the principles of manuring If the acid phosphate contains 14 per cent of phosphoric acid, or 14 pounds to the 100, the required amount will be 30/14 of 100, or 214 pounds. Crops and Methods for Soil Improvement The mineral constituents of cultivated plants, as will also be shown by analysis, are chiefly lime, magnesia, potash, soda, chlorine, sulphuric and phosphoric acid; all of which will be found in Peruvian guano. Guano A Treatise of Practical Information for Farmers Its most interesting property is its tendency to take up oxygen and pass over into phosphoric acid. An Elementary Study of Chemistry If the grass seems to lack sufficient nourishment, add phosphoric acid and potash. Agriculture for Beginners Revised Edition A point of considerable importance to notice is, that a soil rich in lime can stand a larger application of phosphoric acid than one poor in lime. Manures and the principles of manuring The home-mixer may substitute tankage of guaranteed analysis for part of the nitrogen and phosphoric acid. Crops and Methods for Soil Improvement You will readily perceive, therefore, that the sulphuric and phosphoric acids require amendments, and the ammonia should be changed from a carbonate to a sulphate of ammonia, which is not volatile. Guano A Treatise of Practical Information for Farmers They may be prepared by bringing together phosphoric acid and appropriate quantities of sodium hydroxide. An Elementary Study of Chemistry On page 24 you learned that phosphoric acid, potash, and nitrogen are the foods most needed by plants. Agriculture for Beginners Revised Edition It is some considerable time since we have recognised that the only three ingredients it is, as a rule, expedient to apply as artificial manures, are nitrogen, phosphoric acid, and potash. Manures and the principles of manuring The potash content should be greater than that of the phosphoric acid in case of some sandy soils and of some crops of heavy leaf growth, including various garden crops. Crops and Methods for Soil Improvement Potassic fertilizers give the best results when applied to clovers, but dressings of phosphoric acid may also be helpful. Clovers and How to Grow Them For this reason commercial hydrogen dioxide always contains phosphoric acid. An Elementary Study of Chemistry Lime is just as necessary to plant growth as the potash and nitrogen and phosphoric acid about which we hear so much, but it cannot take the place of these plant foods. Agriculture for Beginners Revised Edition With regard to the nitrogen and phosphoric acid, we may ask if these two constituents are in the best proportions. Manures and the principles of manuring If a fertilizer containing 3 per cent of nitrogen, 10 per cent of phosphoric acid, and 6 per cent of potash serves the wheat well, it will serve the timothy that starts in the wheat. Crops and Methods for Soil Improvement In time the supply of phosphoric acid and potash might run low, but not for a long term of years. Clovers and How to Grow Them For example, a solution of hydrogen dioxide decomposes more slowly when it contains a little phosphoric acid than when perfectly pure. An Elementary Study of Chemistry The elements usually lacking in wheat soils are nitrogen, phosphoric acid, and potash. Agriculture for Beginners Revised Edition In the "equalised" and "dissolved" guanos, which are now so largely sold, manufacturers attempt to adjust the percentage of nitrogen and phosphoric acid to what is considered the best proportion in most cases. Manures and the principles of manuring If the soil is sandy and deficient in potash, the percentage of phosphoric acid may be cut to 8, and the percentage of potash raised to 10, and all these crops will profit thereby. Crops and Methods for Soil Improvement Under the same conditions it will also be true in available phosphoric acid and potash. Clovers and How to Grow Them This salt has the property of combining with phosphoric acid to form a very complex substance which is insoluble in nitric acid. An Elementary Study of Chemistry Hence, as a rule, only potash and phosphoric acid will have to be purchased as plant food. Agriculture for Beginners Revised Edition Of phosphoric acid and lime, on the other hand, there are the merest traces in the urine. Manures and the principles of manuring A richer soil may want the phosphoric acid and potash without the nitrogen. Crops and Methods for Soil Improvement Happily, however, nearly all soils are so well stored with phosphoric acid and potash that this result is not likely to follow for many years. Clovers and How to Grow Them The calcium sulphate produced in the reaction is nearly insoluble, and can be filtered off, leaving the phosphoric acid in solution. An Elementary Study of Chemistry Hence barley which is to be fed should be fertilized with mixtures containing nitrogen and phosphoric acid. Agriculture for Beginners Revised Edition As their value depends on their nitrogen and phosphoric acid, these alone have been given. Manures and the principles of manuring A manured soil may need only the phosphoric acid. Crops and Methods for Soil Improvement But lest it should, attention should be given to fertilizing the land occasionally with farmyard manure, or with phosphoric acid and potash applied as commercial fertilizers. Clovers and How to Grow Them In other words, the use of superphosphate furnishing only, or principally, phosphoric acid, lime and sulphuric acid, must have a tendency to impoverish the soil of nitrogen and potash. Talks on Manures A Series of Familiar and Practical Talks Between the Author and the Deacon, the Doctor, and other Neighbors, on the Whole Subject Two of these plant foods, namely, phosphoric acid and potash, are minerals. Agriculture for Beginners Revised Edition In one important respect do the drainings of manure-heaps differ from urine—that is, in the percentage of phosphates they contain, the latter being practically devoid of phosphoric acid. Manures and the principles of manuring Nitrogen must be supplied freely, and phosphoric acid and potash must likewise be given the soil. Crops and Methods for Soil Improvement Those rich in phosphoric acid and potash are usually most needed, but sometimes nitrogen also is necessary. Clovers and How to Grow Them The three substances most difficult to get at are: nitric acid, phosphoric acid and potash. Talks on Manures A Series of Familiar and Practical Talks Between the Author and the Deacon, the Doctor, and other Neighbors, on the Whole Subject In addition each ton of cowpea vines contains ten pounds of phosphoric acid and twenty-nine pounds of potash. Agriculture for Beginners Revised Edition A very considerable variation in the amount of phosphoric acid occurs for the reason above stated, the guano made from fish-scrap being naturally much richer in this ingredient than whole-fish guano. Manures and the principles of manuring This gives nearly the same quantity each of nitrogen, phosphoric acid, and potash, and is near a 7-7-7 fertilizer. Crops and Methods for Soil Improvement The clover may thus be made to furnish nitrogen indefinitely for the other crops, but in some instances it may be necessary to add phosphoric acid and potash. Clovers and How to Grow Them Chemically, the oil globules extracted from the spores contain "alumina" and "phosphoric acid." Herbal Simples Approved for Modern Uses of Cure As the crop can gather most of its own nitrogen, it generally requires only the addition of phosphoric acid and potash for its growth on poor land. Agriculture for Beginners Revised Edition If it be asked, Are the nitrogen, phosphoric acid, and potash in farmyard manure present in the proportion in which crops require these constituents? the answer must be in the negative. Manures and the principles of manuring If there had been no applications of phosphoric acid and potash, the clover would have failed to maintain fertility, as is proved by other plats in this experiment. Crops and Methods for Soil Improvement When sulphates or phosphates are present, the substance is dissolved in a little water, and the sulphuric or phosphoric acid precipitated with a slight excess of acetate of lead in the presence of alcohol. A Text-book of Assaying: For the Use of Those Connected with Mines. Each fluid ounce of the fresh juice contains about forty-four grains of citric acid, with gum, sugar, and a residuum, which yields, when incinerated, potash, lime, and phosphoric acid. Herbal Simples Approved for Modern Uses of Cure Barley is excellent food for the anæmic and nervous on account of its richness in iron and phosphoric acid. Food Remedies Facts About Foods And Their Medicinal Uses With regard to phosphoric acid and potash, it has already been shown that the ratio between them is probably greater than that in a good average manure. Manures and the principles of manuring In the same way the land-owner may forget the necessity of any kind of plant-food in the soil except nitrogen, phosphoric acid, potash, and lime. Crops and Methods for Soil Improvement Arsenic and phosphoric acids interfere unless an excess of free hydrochloric or other acid is present. A Text-book of Assaying: For the Use of Those Connected with Mines. It contains phosphoric acid, and is, therefore, stimulating. Herbal Simples Approved for Modern Uses of Cure The phosphoric acid and the potash you can not lose unless they are taken away in the form of crops, but the nitrogen may be lost without even taking off crops. Trees, Fruits and Flowers of Minnesota, 1916 Embracing the Transactions of the Minnesota State Horticultural Society,Volume 44, from December 1, 1915, to December 1, 1916, Including the Twelve Numbers of "The Minnesota Horticulturist" for 1916 It is a valuable manure, especially so for its nitrogen, which varies from 4 to 8 per cent, while it contains of phosphoric acid from 13 to 20 per cent. Manures and the principles of manuring Nitrogen, phosphoric acid, and potash are the three substances that may not be in available form in sufficient amount for a growing crop. Crops and Methods for Soil Improvement The crystals are sometimes used as a standard for phosphoric acid. A Text-book of Assaying: For the Use of Those Connected with Mines. If boiled after peeling they lose as much as thirty-three per cent. of potash, and twenty-three per cent. of phosphoric acid. Herbal Simples Approved for Modern Uses of Cure Those three are potash, which is abundant and will be abundant 100 years from now, phosphoric acid, or phosphorus, with which our soils are fairly well supplied, and nitrogen, which comes from the vegetable matter. Trees, Fruits and Flowers of Minnesota, 1916 Embracing the Transactions of the Minnesota State Horticultural Society,Volume 44, from December 1, 1915, to December 1, 1916, Including the Twelve Numbers of "The Minnesota Horticulturist" for 1916 The resulting manure contains from 6 to 10 per cent of nitrogen, and from 6 to 14 per cent of phosphoric acid. Manures and the principles of manuring Acid phosphate should be used in the poultry-house to prevent loss of nitrogen, which escapes quickly on account of rapid fermentation, and to supply phosphoric acid. Crops and Methods for Soil Improvement It is used in the determination of phosphoric acid, chiefly for the purpose of preventing the precipitation of phosphates of iron and alumina by ammonia, and in a few similar cases. A Text-book of Assaying: For the Use of Those Connected with Mines. This with phosphoric acid makes phosphate of lime, the basis of the bones and teeth, in which nearly all the calcium of the body is found. Public School Domestic Science It contains a white, acrid, volatile oil holding sulphur in solution, albumen, much uncrystallizable sugar and mucilage, phosphoric acid both free and combined with lime, citrate of lime. Mother's Remedies Over One Thousand Tried and Tested Remedies from Mothers of the United States and Canada Tables have been drawn up with a view to furnishing a guide for the value of phosphoric acid in different manures. Manures and the principles of manuring Thirty pounds of acid phosphate to each 100 pounds of the manure gives a mixture containing one pound of nitrogen, three pounds of phosphoric acid, and two fifths of a pound of potash. Crops and Methods for Soil Improvement Phosphate of lead is decomposed by sulphuric acid; the lead is converted into the insoluble lead sulphate, and the phosphoric acid is dissolved. A Text-book of Assaying: For the Use of Those Connected with Mines. A ton of wheat takes away from the soil about 47 pounds of nitrogen, 18 pounds of phosphoric acid and 12 pounds of potash. Creative Chemistry Descriptive of Recent Achievements in the Chemical Industries The plant gets its phosphorus from phosphoric acid, its potassium from potash, and its calcium from lime. The First Book of Farming The resulting slag is very rich in phosphoric acid, and is correspondingly poor in iron. Manures and the principles of manuring Our interest is only in the very small percentage of material that is composed of the four constituents which may be lacking in available form in the soil: nitrogen, phosphoric acid, potash, and lime. Crops and Methods for Soil Improvement It is better, however, to carry the separation so far as to get phosphoric acid, an alkaline phosphate, or the magnesia precipitate. A Text-book of Assaying: For the Use of Those Connected with Mines. It is mostly procured by the decomposition of the phosphoric acid which is found in bones. A Catechism of Familiar Things; Their History, and the Events Which Led to Their Discovery. With a Short Explanation of Some of the Principal Natural Phenomena. For the Use of Schools and Families. Enlarged and Revised Edition. The nitrifying germs require phosphoric acid, potash and lime in the soil. The First Book of Farming That is to say, that for every equivalent of phosphoric acid there are three equivalents of lime. Manures and the principles of manuring Nearly all the basic slag used as a fertilizer is imported from Germany, and usually contains 17 to 18 per cent of phosphoric acid. Crops and Methods for Soil Improvement In other words, he must give it more nitrogen, phosphoric acid, and potash than it can use for simple growth and maintenance, and thus make it burst forth into flower-or fruit-product. The Fat of the Land The Story of an American Farm By its distillation with anhydrous phosphoric acid, a fluid, oily combination of hydrogen and carbon results. The Art of Perfumery And Methods of Obtaining the Odors of Plants The plant finds it as a phosphoric acid united with the other substances forming phosphates. The First Book of Farming As soon as the idea of utilising the slag as a manure was suggested, various plans for extracting its phosphoric acid, and rendering it available as plant-food, were devised. Manures and the principles of manuring The sixth line gives the percentage of unavailable phosphoric acid in the rock, and should be ignored by the purchaser who wants available plant-food. Crops and Methods for Soil Improvement Less nitrogen and more phosphoric acid and potash are to be used, and the mulch should not be removed in the early spring. The Fat of the Land The Story of an American Farm The green leaves constitute the machinery of the manufacture, for which the solar light from above, and the potash, phosphate of lime, phosphate of magnesia, and phosphoric acid from below are the raw materials. The Culture of Vegetables and Flowers From Seeds and Roots 16th Edition We learned in a previous chapter that the plant foods, nitrogen, phosphoric acid, potash and lime, are apt to be found wanting in sufficient available quantities to supply the needs of profitable crops. The First Book of Farming It may be added that the slag used in these experiments was rich in phosphoric acid, and was in an unusually fine state of division. Manures and the principles of manuring A ton of it contains only 16 pounds of nitrogen, 160 pounds of phosphoric acid, and 20 pounds of potash. Crops and Methods for Soil Improvement Thus dried it passes through weighed potash bulbs, after which is placed for safety a small tube containing soda lime and phosphoric acid. Scientific American Supplement, No. 794, March 21, 1891 In a ton of Potatoes there are about twelve pounds of potash, four pounds of sulphuric acid, four pounds of phosphoric acid, and one pound of magnesia. The Culture of Vegetables and Flowers From Seeds and Roots 16th Edition It is much slower in its action than dried blood and supplies the crop with both nitrogen and phosphoric acid. The First Book of Farming Although its action is undoubtedly more favourable on some soils than others, it may be broadly stated that generally its phosphoric acid is half as valuable as that in soluble phosphate. Manures and the principles of manuring Each one per cent guaranteed is thus worth a dollar, and the phosphoric acid in the fertilizer is easily valued. Crops and Methods for Soil Improvement I. Blood absorbs oxygene from the air, whence phosphoric acid changes its colour, gives out heat, and some phlogistic material, and acquires an ethereal spirit, which is dissipated in fibrous motion. Zoonomia, Vol. I Or, the Laws of Organic Life It is employed in some cases to detect phosphoric acid, and also minute traces of copper in lead compounds. A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations It undergoes nitrification readily and is a quick acting organic source of nitrogen and phosphoric acid. The First Book of Farming The phosphoric acid which is naturally present in most soils is with difficulty soluble. Manures and the principles of manuring They may carry nitrogen, phosphoric acid, or potash,—any one or two or the three,—and the three are the constituents that usually are lacking in available forms in our soils. Crops and Methods for Soil Improvement Thus, phosphorus catches fire in the atmosphere at a temperature of 140 degrees, and it goes on rapidly combining with the oxygen, burning with a dazzling white light, and producing phosphoric acid. Lectures on Popular and Scientific Subjects Sulphuric acid is a great aid to the development of the color, especially if other salts be present which would be liable to hide the color of the phosphoric acid. A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations The phosphoric acid in the floats is insoluble and becomes available only as the phosphate decays. The First Book of Farming In this way the increase in returns could only be due to the phosphoric acid. Manures and the principles of manuring There are marls that are carriers of potash and phosphoric acid, and are to be valued accordingly as fertilizers. Crops and Methods for Soil Improvement Magnesium, a metal found in union with phosphoric acid in the bones 0 2 250 11. The Easiest Way in Housekeeping and Cooking Adapted to Domestic Use or Study in Classes This biphosphate of soda possesses an excess of phosphoric acid, and thus has the property of dissolving a great number of substances, in fact almost any one, with the exception of silica. A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations The phosphoric acid in the ground rock is combined with lime, forming a phosphate of lime which is insoluble. The First Book of Farming But as this could also be produced by an overdose of soluble phosphoric acid as well as ammonia salts, it is not a property that belongs exclusively to nitrate of soda. Manures and the principles of manuring Another gain is found in the content of phosphoric acid and potash in the manure, much of which was drawn from soil supplies out of reach of the other farm crops. Crops and Methods for Soil Improvement A trace of manganese; a trace only of phosphoric acid in watery solution. The Commercial Products of the Vegetable Kingdom Considered in Their Various Uses to Man and in Their Relation to the Arts and Manufactures; Forming a Practical Treatise & Handbook of Reference for the Colonist, Manufacturer, Merchant, and Consumer, on the Cultivation, Preparation for Shipment, and Commercial Value, &c. of the Various Substances Obtained From Trees and Plants, Entering into the Husbandry of Tropical and Sub-tropical Regions, &c. The free phosphoric acid expels, likewise, most other acids from their combinations, and combines with metallic oxides. A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations It is then called soluble or water soluble phosphoric acid. The First Book of Farming The following table shows the relative trade values of phosphoric acid in different manures:— I.—Wolff, 1893. Manures and the principles of manuring Animal Bone.—The original source of phosphoric acid as a fertilizer was animal bone, just as hard-wood, unleached ashes were the source of potash. Crops and Methods for Soil Improvement Even in this very accidental circumstance the coffee planter is aided; for the phosphoric acid thus combined with the limestone is the very substance required in addition. The Commercial Products of the Vegetable Kingdom Considered in Their Various Uses to Man and in Their Relation to the Arts and Manufactures; Forming a Practical Treatise & Handbook of Reference for the Colonist, Manufacturer, Merchant, and Consumer, on the Cultivation, Preparation for Shipment, and Commercial Value, &c. of the Various Substances Obtained From Trees and Plants, Entering into the Husbandry of Tropical and Sub-tropical Regions, &c. In blowpipe analysis, we use it fused with carbonate of soda to a bead, as a test for sulphuric acid, and in some cases for phosphoric acid. A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations Reverted phosphoric acid is also called citrate soluble phosphoric acid, because in testing fertilizers the chemists use ammonium citrate to determine the amount of reverted phosphoric acid. The First Book of Farming In the ordinary so-called raw phosphates, such as bone-meal, bone-ash, coprolites, &c., the lime and phosphoric acid are combined in the form of what is known, in chemical phraseology, as tribasic phosphate of lime. Manures and the principles of manuring The supply of phosphoric acid from bone is too small, when compared with the land's need, to deserve more than a small fraction of the consideration it receives by users of commercial fertilizers. Crops and Methods for Soil Improvement Placing the substances traced in the coffee plant in the order in which they occur in the greatest quantity, they will stand thus:— Lime, potash, magnesia, phosphoric acid, other acids. The Commercial Products of the Vegetable Kingdom Considered in Their Various Uses to Man and in Their Relation to the Arts and Manufactures; Forming a Practical Treatise & Handbook of Reference for the Colonist, Manufacturer, Merchant, and Consumer, on the Cultivation, Preparation for Shipment, and Commercial Value, &c. of the Various Substances Obtained From Trees and Plants, Entering into the Husbandry of Tropical and Sub-tropical Regions, &c. A particular phenomenon appears with the phosphate of lithia, viz., the phosphoric acid itself possesses the property of communicating to the flame a bluish-green color. A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations This form still continues to take on lime and by and by gets back to the original insoluble form called insoluble phosphoric acid. The First Book of Farming Potatoes repay the application of a mixed manure containing all the fertilising ingredients—nitrogen, phosphoric acid, and potash—better than most crops. Manures and the principles of manuring The nitrogen in steamed bone may run as low as 1 per cent, and the phosphoric acid may go up to 30 per cent. Crops and Methods for Soil Improvement The amount of phosphoric acid in any given quantity of the ash of wheat varies from forty to fifty per cent. of the same. The Commercial Products of the Vegetable Kingdom Considered in Their Various Uses to Man and in Their Relation to the Arts and Manufactures; Forming a Practical Treatise & Handbook of Reference for the Colonist, Manufacturer, Merchant, and Consumer, on the Cultivation, Preparation for Shipment, and Commercial Value, &c. of the Various Substances Obtained From Trees and Plants, Entering into the Husbandry of Tropical and Sub-tropical Regions, &c. It occurs free in nature in many minerals, as sapphire, etc.; or in combination with sulphuric acid, phosphoric acid, and fluorine, and chiefly silicates. A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations The soluble phosphoric acid and reverted phosphoric acid are available to plant roots. The First Book of Farming The proportion in which these different forms of nitrogen and phosphoric acid are present varies considerably in different samples. Manures and the principles of manuring Some grades run very low both in nitrogen and phosphoric acid, due probably to adulteration. Crops and Methods for Soil Improvement Seeds that have a thick cuticle or bran, and little gluten, contain a smaller per centage of phosphoric acid, and more silica. The Commercial Products of the Vegetable Kingdom Considered in Their Various Uses to Man and in Their Relation to the Arts and Manufactures; Forming a Practical Treatise & Handbook of Reference for the Colonist, Manufacturer, Merchant, and Consumer, on the Cultivation, Preparation for Shipment, and Commercial Value, &c. of the Various Substances Obtained From Trees and Plants, Entering into the Husbandry of Tropical and Sub-tropical Regions, &c. The difficulty from excess of lime is overcome by adding it now and then during carbonatation; but other means are found desirable; and phosphoric acid, magnesia, soda, etc., have been used with success. Scientific American Supplement, No. 832, December 12, 1891 The rock phosphates contain from 26 to 35 per cent. of insoluble phosphoric acid. The First Book of Farming As has been shown in the Introduction, there is practically in the case of most soils no necessity to add to a manure any more than the three ingredients, nitrogen, phosphoric acid, and potash. Manures and the principles of manuring Rock-phosphate.—While the greater part of our soils contain relatively scant stores of phosphoric acid, the deposits of this plant constituent in combination with lime are immense. Crops and Methods for Soil Improvement Thus, while 100 parts of the ash of wheat contain an average of 45 parts of phosphoric acid, 100 of the ash of the wheat straw contain an average of only 5 parts. The Commercial Products of the Vegetable Kingdom Considered in Their Various Uses to Man and in Their Relation to the Arts and Manufactures; Forming a Practical Treatise & Handbook of Reference for the Colonist, Manufacturer, Merchant, and Consumer, on the Cultivation, Preparation for Shipment, and Commercial Value, &c. of the Various Substances Obtained From Trees and Plants, Entering into the Husbandry of Tropical and Sub-tropical Regions, &c. The process consists in decomposing the mixture of phosphoric acid, or acid phosphates and carbon, by the heat of the electric arc embedded in the mass. Scientific American Supplement, No. 810, July 11, 1891 The acid phosphates or dissolved rock phosphates contain from 12 to 16 per cent. of available phosphoric acid and from 1 to 4 per cent. of insoluble. The First Book of Farming The result is, that farmyard manure will be, as a rule, more valuably supplemented by phosphoric acid than by potash. Manures and the principles of manuring It varies greatly in content of phosphoric acid. Crops and Methods for Soil Improvement All experience, as well as all chemical researches, go to prove that potash and phosphoric acid are important elements in the organisation of maize. The Commercial Products of the Vegetable Kingdom Considered in Their Various Uses to Man and in Their Relation to the Arts and Manufactures; Forming a Practical Treatise & Handbook of Reference for the Colonist, Manufacturer, Merchant, and Consumer, on the Cultivation, Preparation for Shipment, and Commercial Value, &c. of the Various Substances Obtained From Trees and Plants, Entering into the Husbandry of Tropical and Sub-tropical Regions, &c. This phosphoric acid dissolves in the water of the test glass and the latter becomes transparent again. Scientific American Supplement No. 822, October 3, 1891 Bones have long been a valuable and favored source of phosphoric acid. The First Book of Farming That the form in which a portion of these ingredients—nitrogen and phosphoric acid—is present is not of the most valuable kind. Manures and the principles of manuring The value of a pound of phosphoric acid in floats, as compared with that of a pound in the treated rock, known as acid phosphate, is a matter upon which scientists differ widely. Crops and Methods for Soil Improvement For instance, sulphuric acid, boracic acid, phosphoric acid, are ions, but not electrolytes, i.e. not composed of electro-chemical equivalents of simple ions. Experimental Researches in Electricity, Volume 1 If, now, we introduce some oxide of carbon, we remark in the sun no formation of phosphoric acid, and this proves that there is no emission of oxygen. Scientific American Supplement No. 822, October 3, 1891 The bone black contains thirty to thirty-six per cent. of insoluble phosphoric acid. The First Book of Farming This is due to the fact that the most of their potash, phosphoric acid, and nitrogen pass into the body of the trees at the approach of winter. Manures and the principles of manuring The phosphoric acid in the acid phosphate was needed. Crops and Methods for Soil Improvement Phosphoric acid is, I believe, also in the same condition; but I have found it impossible to decide the point, because of the difficulty of operating on fused anhydrous phosphoric acid. Experimental Researches in Electricity, Volume 1 Our vegetables, grain, meat and milk contain too much phosphoric acid and sal ammoniac, and this is due to the use of artificial and animal fertilizers, while the sulphurics are very often entirely missing. Valere Aude Dare to Be Healthy, Or, The Light of Physical Regeneration The term superphosphate is applied to the phosphates that have been treated with sulphuric acid to make the phosphoric acid available. The First Book of Farming In addition to fixing the ammonia, sulphate of magnesia may very probably fix the soluble phosphoric acid. Manures and the principles of manuring At the same time the 50 pounds of tankage supplies 10 pounds of phosphoric acid, replacing one third of the 214 pounds of acid phosphate. Crops and Methods for Soil Improvement I may remind the reader that 5 cwt. of parchment takes from the soil 1 lb. of lime and 1½ lb. of phosphoric acid. Gold, Sport, and Coffee Planting in Mysore The property of phosphoric acid of uniting with carburetted hydrogen to form carbonic acid and phosphureted hydrogen certainly is of fundamental importance, as phosphureted hydrogen readily ignites on coming into contact with oxygen. Valere Aude Dare to Be Healthy, Or, The Light of Physical Regeneration If these mixtures contain the three important plant foods, nitrogen, phosphoric acid and potash, they are sometimes called "complete" manures or fertilizers. The First Book of Farming Reference has been made to the fact that magnesium sulphate may probably not only fix the ammonia, but the phosphoric acid. Manures and the principles of manuring The amounts of potash are about the same, while phosphoric acid is much less in amount. Crops and Methods for Soil Improvement And subsequently, when there is reason to suppose that the land requires a fresh supply of phosphoric acid, an application of bone-meal may again be used. Gold, Sport, and Coffee Planting in Mysore In the same manner that sulphuric acid controls and regulates the phosphoric acid of ammonium phosphate, so lime and magnesia act on the ammonia of this same ammonium phosphate. Valere Aude Dare to Be Healthy, Or, The Light of Physical Regeneration He finds that a certain successful cabbage grower recommends the use of fifty pounds nitrogen, fifty pounds phosphoric acid and seventy pounds potash per acre. The First Book of Farming We now come to consider the position of phosphoric acid in agriculture. Manures and the principles of manuring In recent years this preservative has fallen somewhat into disuse, as acid phosphate contains like material and also supplies phosphoric acid to the manure. Crops and Methods for Soil Improvement Bischoff, Voit, and Hermann have shown that water increases, not alone the elimination of urine, but also of sodium chloride, phosphoric acid, etc. Scientific American Supplement, No. 821, September 26, 1891 In using the term incomplete fertilization, I mean supplying only potash, phosphoric acid and nitrogen, and possibly lime and sulphur, when the soil is denuded of several other elements. Valere Aude Dare to Be Healthy, Or, The Light of Physical Regeneration Turnips are benefitted by liberal applications of soluble phosphoric acid. The First Book of Farming The older, therefore, a rock is, the richer it is likely to be in phosphoric acid. Manures and the principles of manuring The phosphoric acid content of stable manure is too low for all soils, and the reënforcement by means of acid phosphate would be good practice even if there were no preservative effect. Crops and Methods for Soil Improvement Another gramme was also taken, without picking out the metallic iron, and was tested for chlorine and for phosphoric acid. Scientific American Supplement, No. 530, February 27, 1886 Thus we come to the conclusion that the phosphates, combinations of phosphoric acid with basic substances, possess in general the property of imparting the true impulse to growth, that is to accumulation of organic matter. Valere Aude Dare to Be Healthy, Or, The Light of Physical Regeneration A well developed head of grain, seed pod or fruit indicates liberal supplies of phosphoric acid and potash. The First Book of Farming A further source of loss is the phosphoric acid removed in milk. Manures and the principles of manuring The use of fifty pounds of acid phosphate to each ton of manure will assist materially in preserving the nitrogen, and the gain in phosphoric acid will repay all the cost. Crops and Methods for Soil Improvement For the purpose of gravimetric determination, phosphoric acid is usually precipitated from ammoniacal solutions in the form of magnesium ammonium phosphate which, on ignition, is converted into magnesium pyrophosphate. An Introductory Course of Quantitative Chemical Analysis With Explanatory Notes Let us face the effect of attempting to fertilize our fields with nothing more than stable manure, which, it is true, supplies phosphoric acid, potash and nitrogen. Valere Aude Dare to Be Healthy, Or, The Light of Physical Regeneration Heavy soils are generally supplied with potash but lack phosphoric acid. The First Book of Farming In the total annual yield of milk from one cow there may be from 11 to 12 lb. of phosphoric acid. Manures and the principles of manuring The phosphoric acid and potash are minerals, and leach into the soil. Crops and Methods for Soil Improvement The separation of the phosphoric acid from the calcium must first be accomplished by precipitation in the form of ammonium phosphomolybdate in nitric acid solution, using ammonium molybdate as the precipitant. An Introductory Course of Quantitative Chemical Analysis With Explanatory Notes The substances found in the soluble inorganic matter of soils are lime, magnesia, alumina, silica, phosphoric acid, oxide of iron, oxide of manganese, potash and soda. A start in life. A journey across America. Fruit farming in California We also learned that of the plant foods there is often not enough available nitrogen, phosphoric acid, potash and lime for the needs of the growing plants. The First Book of Farming The following is a list of the commoner rocks in which the percentage of phosphoric acid has been determined. Manures and the principles of manuring Reënforcement with Minerals.—A ton of mixed manure in the stable contains about ten pounds of nitrogen, five pounds of phosphoric acid, and ten pounds of potash. Crops and Methods for Soil Improvement Of the substances likely to occur in apatite, silicic acid alone interferes with the precipitation of the phosphoric acid in nitric acid solution. An Introductory Course of Quantitative Chemical Analysis With Explanatory Notes The urine always showed phosphates, and never the slightest sign of free phosphoric acid. Anomalies and Curiosities of Medicine The principal commercial sources of phosphoric acid are: Phosphate Rocks. The First Book of Farming Potash occurs as a constituent of certain other manures, more valuable for nitrogen and phosphoric acid, such as guano and dried blood. Manures and the principles of manuring This makes the percentage of nitrogen and potash the same, while the percentage of phosphoric acid is only half as high. Crops and Methods for Soil Improvement How many cubic centimeters of 3 N phosphoric acid must be added to 300 cc. of 0.4 N phosphoric acid in order that the resulting solution may be 0.6 N? An Introductory Course of Quantitative Chemical Analysis With Explanatory Notes Of potash, each of the rotation crops takes up very much more than of phosphoric acid. The Project Gutenberg Encyclopedia Volume 1 of 28 The phosphoric acid is left combined with the smallest possible amount of lime and is soluble in water. The First Book of Farming Stoeckhardt has found that in 1000 lb. of the fresh solid excreta of the animals below mentioned, there were the following amounts of nitrogen, phosphoric acid, and alkalies:— Phosphoric Water. Manures and the principles of manuring Practically no phosphoric acid is found in drainage waters. Crops and Methods for Soil Improvement It may be said, however, that, as a rule, most lands contain all the elements of plant-food in sufficient quantities except potash, phosphoric acid, and nitrogen. Manual of Gardening (Second Edition) Thus the whole of the crops of rotation take up very much more of potash than of phosphoric acid, whilst probably even less of it is ultimately lost to the land. The Project Gutenberg Encyclopedia Volume 1 of 28 It is then said to be reverted phosphoric acid. The First Book of Farming These facts are of importance to remember, as they explain why phosphoric acid is not found in drainage-water in any quantity. Manures and the principles of manuring The addition of the 50 pounds of acid phosphate per ton does not bring the phosphoric acid content up as high relatively as in most commercial fertilizers, but it helps. Crops and Methods for Soil Improvement The sulphuric and phosphoric acids, alumina, magnesia, etc, are thus precipitated. Scientific American Supplement, No. 362, December 9, 1882 That no human skeletons are found may be solved from the circumstance of the large proportion of phosphoric acid in human bones. Literary Remains, Volume 2 In addition to phosphoric acid they contain some nitrogen which adds to their value. The First Book of Farming Like phosphoric acid, its occurrence in the rocks forming the earth's crust may be said to be practically universal. Manures and the principles of manuring The number of pounds of matter in the roots and stubble has been determined, and analyses show the percentage of nitrogen, phosphoric acid, and potash contained. Crops and Methods for Soil Improvement Other things being equal, it may be considered that the comparative nutrient value of two articles is in proportion to the amounts of carbon, nitrogen, and phosphoric acid they contain. Scientific American Supplement, No. 430, March 29, 1884 From all compounds of manganese, excepting those containing cobalt and nickel, the manganese is precipitated as binoxide; those containing these two elements are treated with phosphoric acid, or as noted under Separation. Scientific American Supplement, No. 324, March 18, 1882 Ground bone is sometimes treated with sulphuric acid to render the phosphoric acid in it more available. The First Book of Farming We may, lastly, consider the position of potash in agriculture, the only ash ingredient of the plant, in addition to phosphoric acid, which it is as a rule necessary to add as a manure. Manures and the principles of manuring If lime has been applied to give to the soil a condition friendly to plant life, we are concerned with three constituents only, viz. nitrogen, phosphoric acid, and potash. Crops and Methods for Soil Improvement My examinations were especially directed to the mineral matter, phosphoric acid, and nitrogen. Scientific American Supplement, No. 430, March 29, 1884 From phosphoric acid I always use Girard's method of treatment with tin, using it rasped, and it yields much more accurate results with but little manipulation. Scientific American Supplement, No. 324, March 18, 1882 It is then called dissolved bone and contains thirteen to fifteen per cent. of available phosphoric acid and two to three per cent. of nitrogen. The First Book of Farming On this account straw contains a much greater proportion of potash than phosphoric acid, and hence farmyard manure may be regarded as fairly rich in potash. Manures and the principles of manuring Phosphoric-acid Requirements.—Soil analyses show that the content of phosphoric acid in most soils of this country is relatively small. Crops and Methods for Soil Improvement The ash was obtained by burning in a platinum crucible, at as low a temperature as possible, dissolving in hydrochloric acid the phosphoric acid separated as ammonium molybdo-phosphate, and determined in the usual manner. Scientific American Supplement, No. 430, March 29, 1884 Immediately it comes in contact with atmospheric moisture phosphoric anhydride is converted into phosphoric acid, but this also occurs at first as a solid substance. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power The dissolved bone black contains 15 to 17 per cent. of available phosphoric acid and 1 to 2 per cent. insoluble. The First Book of Farming The manurial value of the solid excreta of animals—i.e., the proportion they contain of nitrogen, phosphoric acid, and potash—depends on a variety of conditions. Manures and the principles of manuring Fertilizer experiments at the various stations and on farms are nearly a unit in showing that if any need in plant-food exists, phosphoric acid is deficient. Crops and Methods for Soil Improvement Condiments fulfill both of these requirements, as is shown by a study of their composition; the phosphoric acid and nitrogen are taken up by the tissues, as from other substances used in diet. Scientific American Supplement, No. 430, March 29, 1884 Consequently, since phosphoric acid results from the phosphine in crude acetylene when the gas is passed through aqua regia, silica may be found on subsequently evaporating the latter. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power It contains 11 to 23 per cent. of phosphoric acid, most of which is available. The First Book of Farming As an example of how, in many cases, the amount of phosphoric acid removed from the farm is very often much greater than that restored, a case quoted by Crusius may be cited. Manures and the principles of manuring The need of phosphoric acid is so common that it is the sole plant-food in much fertilizer, and the dominant element in practically all the remainder on the market. Crops and Methods for Soil Improvement We can determine by chemical analysis the exact amounts of the various plant foods—nitrogen, phosphoric acid, potash, etc.—which a crop of any vegetable will remove from the soil. Home Vegetable Gardening — a Complete and Practical Guide to the Planting and Care of All Vegetables, Fruits and Berries Worth Growing for Home Use Thus the ultimate products are phosphoric acid and ferrous chloride, which on exposure to air is oxidised to ferric chloride and oxide. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power Fish Scrap, mentioned as a source of nitrogen, is also a valuable source of phosphoric acid, containing 6 to 8 per cent., which is quite readily available owing to the rapid decay of the scrap. The First Book of Farming The risks of loss of phosphoric acid in the treatment of farmyard manure are not so great as in the case of nitrogen. Manures and the principles of manuring A soil that is deficient in the three may not give any return from potash alone, and usually does not, although it may give a marked increase from use of phosphoric acid alone. Crops and Methods for Soil Improvement What are termed the raw materials from which the universally known "mixed fertilizers" are made up, are organic or inorganic substances which contain nitrogen, phosphoric acid or potash in fairly definite amounts. Home Vegetable Gardening — a Complete and Practical Guide to the Planting and Care of All Vegetables, Fruits and Berries Worth Growing for Home Use The phosphoric acid was then precipitated by addition of ammonium molybdate. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power To furnish the phosphoric acid he can buy 1,786 pounds acid phosphate. The First Book of Farming As has been shown in the previous chapter, the substances necessary for plant-growth which are apt to be lacking in a soil, are only generally three in number—viz., nitrogen, phosphoric acid, and potash. Manures and the principles of manuring Nearly all the phosphoric acid has come from rock, and its use has been necessary and profitable, but the misrepresentation fostered the old-time prejudice. Crops and Methods for Soil Improvement The only three of the chemical elements mentioned which we need consider are: nitrogen, phosphoric acid, and potash. Home Vegetable Gardening — a Complete and Practical Guide to the Planting and Care of All Vegetables, Fruits and Berries Worth Growing for Home Use According to these investigators the combustion of the phosphine causes a deposit at the burner orifices of phosphoric acid, which is raised by the flame to a temperature higher than that of the burner. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power The cowpea roots, for example, can take nitrogen from the air and they can use such tough phosphoric acid and potash that it seldom pays to feed them directly with fertilizers. The First Book of Farming The most important substances present in soils are as follows: silica, alumina, lime, magnesia, potash, soda, ferric oxide, manganese oxide, sulphuric acid, phosphoric acid, and chlorine. Manures and the principles of manuring Steamed bone is an excellent source of phosphoric acid. Crops and Methods for Soil Improvement In the first place, it is required to furnish all the plant food elements—some seven in number, beside the three, nitrogen, phosphoric acid and potash, already mentioned. Home Vegetable Gardening — a Complete and Practical Guide to the Planting and Care of All Vegetables, Fruits and Berries Worth Growing for Home Use This hot deposit then decomposes some acetylene, and the carbon deposited therefrom is rendered incombustible by the phosphoric acid which continues to be produced from the combustion of the phosphine in the gas. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power Clover, peas, beans, etc., have the power of drawing nitrogen from the air, but draw from the soil lime, phosphoric acid and potash. The First Book of Farming It is present in large quantities in the grain of cereals, although, as we have already pointed out, not to the same proportional extent as phosphoric acid. Manures and the principles of manuring Applications should be in large amount per acre—500 to 1000 pounds—in order that the amount of readily available phosphoric acid may meet the immediate need of plants. Crops and Methods for Soil Improvement By the simplest experiment, any one may satisfy himself that rain-water filtered through field or garden soil does not dissolve out a trace of potash, silicic acid, ammonia, or phosphoric acid. The Earth as Modified by Human Action The incombustible deposit of carbon and phosphoric acid thus produced ultimately chokes the burner. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power Because it is a weak feeder of phosphoric acid, and can use only that which is in the most available form. The First Book of Farming The capacity of the soil to retain soluble potash compounds, while not equal to its capacity for retaining phosphoric acid, is yet very much in excess of its capacity for retaining nitrates. Manures and the principles of manuring Some acid phosphate is guaranteed to contain 16 per cent available phosphoric acid, and some runs down to 10 per cent available. Crops and Methods for Soil Improvement Now, phosphoric acid melts in water just as sugar does, and in a few minutes these fumes will disappear. The Fairy-Land of Science The essential constituent of bleaching-powder from the present aspect is calcium hypochlorite, which readily oxidises sulphuretted hydrogen, and more particularly phosphine, converting them into sulphuric and phosphoric acids, while the acetylene is practically unattacked. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power Some of the potash and phosphoric acid will be converted into unavailable forms. The First Book of Farming Unlike nitrogen, phosphoric acid occurs in the soil almost entirely in an insoluble form; and when applied to the soil in a soluble form, is speedily converted into an insoluble condition. Manures and the principles of manuring The influence in this direction is not great enough to be a very material factor in deciding upon a carrier of phosphoric acid. Crops and Methods for Soil Improvement These fumes are phosphoric acid which is a substance made of phosphorous and the oxygen of the air together. The Fairy-Land of Science Phosphorus is objectionable because in similar circumstances it produces phosphoric anhydride and phosphoric acid. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power This can be made good by applying to the cotton a fertilizer containing twenty pounds of nitrogen, sixty pounds of phosphoric acid and twenty pounds of potash. The First Book of Farming In 1000 parts the following quantities of water, nitrogen, phosphoric acid, and alkalies were found to be present. Manures and the principles of manuring The soil's store of available phosphoric acid gives out first, and this fertilizer brings a new supply. Crops and Methods for Soil Improvement The composition of mixed stable manure is given as containing in one ton: Nitrogen, 10 pounds; phosphoric acid, 5 pounds; potash, 10 pounds. One Thousand Questions in California Agriculture Answered Oil of turpentine removes traces of phosphorus, phosphoric acid, or phosphoric salve, which are insoluble in anything else except ether and absolute alcohol. The Dream Doctor The corn is a rather stronger feeder of phosphoric acid than cotton and will be able to get sufficient from that left by the cotton. The First Book of Farming As we have already done in the case of nitrogen, we may now attempt to form some conception of the sources of loss and gain of phosphoric acid in the soil. Manures and the principles of manuring The phosphoric acid has peculiar ability in giving impetus to the growth of a young plant, and that enables it to send its roots out and obtain more nitrogen than it otherwise would do. Crops and Methods for Soil Improvement The potash and phosphoric acid supply can probably be maintained for ages by proper methods of cultivation, though the phosphoric acid will become exhausted long before the potash. Dry-Farming : a System of Agriculture for Countries under a Low Rainfall "Phosphorus, phosphoric acid, or phosphoric salve," Craig said slowly, looking eagerly about the room as if in search of something that would explain it. The Dream Doctor Reverted, said of phosphoric acid in the process of becoming insoluble. The First Book of Farming We have already seen that the condition in which phosphoric acid is present in the soil is as insoluble phosphate. Manures and the principles of manuring The phosphatic fertilizer, carrying phosphoric acid to land that gets its nitrogen from clover or stable manure, and that continues to supply its own potash. Crops and Methods for Soil Improvement The header stubble contains a very large proportion of the nitrogen that the crop has taken from the soil and more than half of the potash and phosphoric acid. Dry-Farming : a System of Agriculture for Countries under a Low Rainfall "That," continued Percy, "is the complete definition as given by the Century dictionary as to what phosphoric acid is, and I note that this is the latest edition of the Century, copyrighted in 1902." The Story of the Soil; from the Basis of Absolute Science and Real Life, One ton of ordinary stable manure contains about 1275 pounds of organic matter, carrying eight pounds of nitrogen, ten pounds of potash, and four pounds of phosphoric acid. Three Acres and Liberty The same authority has calculated that in the bones of the entire farm animals in France there is no less a quantity than 76,820 tons of phosphoric acid. Manures and the principles of manuring The combination of phosphoric acid and potash that is needed by soils obtaining all required nitrogen from clover or manure. Crops and Methods for Soil Improvement They are characterized by the properties which normally belong to volcanic soils; somewhat poor in lime, but rich in potash and phosphoric acid. Dry-Farming : a System of Agriculture for Countries under a Low Rainfall "Is the bone phosphate of lime that the agents talk about the same as the 'phosphoric acid'?" asked Mr. Thornton. The Story of the Soil; from the Basis of Absolute Science and Real Life, In ordinary manure most of the value is due to the nitrogen, although phosphoric acid and potash are also present. Three Acres and Liberty Quite recently, also, a large source of phosphoric acid has been opened up in the basic slag, a rich phosphatic bye-product obtained in considerable quantity in steel-works from the basic process of steel manufacture. Manures and the principles of manuring In most instances the phosphoric acid should run higher than the potash, but the percentage of potash should never run lower than 4. Crops and Methods for Soil Improvement Acid Salts.—Write symbols for nitric, sulphuric, phosphoric acids. An Introduction to Chemical Science "Well, I know the fertilizer agents claim to sell phosphoric acid in two-hundred-pound bags which wouldn't hold any kind of liquid." The Story of the Soil; from the Basis of Absolute Science and Real Life, Passing over the phosphoric acid, the gluten, and other interesting constituents of the tea leaf, we proceed to the observed effects of tea upon the human system. Tea Leaves We have sufficiently indicated the importance of phosphoric acid in agriculture by the statements above given. Manures and the principles of manuring If coal consists of altered vegetable debris, we ought to find a certain amount of alkalies and phosphoric acid in its ash. More Letters of Charles Darwin — Volume 2 While this is the case, the amount of phosphoric acid it contains is greater than that contained in the sheep's urine. Manures and the principles of manuring It is not quite correct to call 'phosphoric acid' and potash plant food elements. The Story of the Soil; from the Basis of Absolute Science and Real Life, We have, lastly, phosphoric acid occurring in large quantities in guano-deposits, chiefly found on the west coast of South America. Manures and the principles of manuring All further consideration of phosphoric acid must therefore be deferred to future chapters. Manures and the principles of manuring From the above table it will be seen that the sheep's dung contains the least percentage of water, and is richer in nitrogen and phosphoric acid than any of the other three. Manures and the principles of manuring Drainage, average of thirteen years, 160; nitrates in, 160; nitrates lost by, 140; phosphoric acid lost by, 206; potash lost by, 217. Manures and the principles of manuring As stated in your Century dictionary, true phosphoric acid forms three distinct classes of salts, because either one, two, or all of the three hydrogen atoms may be replaced by a metallic element. The Story of the Soil; from the Basis of Absolute Science and Real Life, Thus, we have phosphoric acid itself containing the three hydrogen atoms, one phosphorus atom, and four oxygen atoms. The Story of the Soil; from the Basis of Absolute Science and Real Life, The tendency of phosphoric acid is to travel up to the higher portions of the plant with the progress of growth, and to finally accumulate in the seed. Manures and the principles of manuring |
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