| 单词 | humic |
| 例句 | “A lot of plants are adapted to absorbing mineral nutrients rather than organic, humic nutrients,” he said. This unusual garden style could be a sustainable solution for urban landscapes 2019-06-04T04:00:00Z The decaying mosses release humic acids and sphagnan, a complex sugar, that make life difficult for the microorganisms that would normally cause rotting and decay. What the Bog Bodies Knew 2023-01-30T05:00:00Z Organic-rich soils seem particularly problematic; they are ripe with molecules like humic acid, which behaves like DNA and can foul later sequencing. DNA recovered from Arctic lakes holds clues for our future world 2019-12-10T05:00:00Z Other ‘humic’ organics are released from soil and coal. Air pollution: a global problem needs local fixes 2019-06-24T04:00:00Z Both the humic acid and humin are mixtures, and several constituents have been separated; ulmic acid and ulmin, in addition to humic acid and humin, are perhaps the best characterized. Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 8 "Hudson River" to "Hurstmonceaux" 2012-02-24T03:00:27.173Z The purchase of the humic acid supplier opened access to raw materials, said Yu. China Reverse Merger Pits Morgan Stanley Against Hedge Funds 2011-06-22T00:04:42Z It is tasteless, insoluble in alcohol and ether, and is described by Dana as an acid substance, or mixture of different acids, related to humic acid. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 6 "Dodwell" to "Drama" Are humus and humic acid of great practical importance? The Elements of Agriculture A Book for Young Farmers, with Questions Prepared for the Use of Schools A theory has been advanced that it is due to the formation of insoluble ulmates and humates, formed by the union of ulmic and humic acids, along with the bases fixed. Manures and the principles of manuring This solvent separates the humic and ulmic acids from the undecomposed vegetable fibers. Peat and its Uses as Fertilizer and Fuel Lignite coal is the main raw material for Yongye’s humic acid products, according to filings. China Reverse Merger Pits Morgan Stanley Against Hedge Funds 2011-06-22T00:04:42Z The acids above named do not differ greatly in chemical characters, but they have been subdivided into the humic, geic, and crenic groups, which present some differences in properties and composition. Elements of Agricultural Chemistry The residues, which are insoluble in water, but redissolve in ammonia, have the properties of humic acids. Researches on Cellulose 1895-1900 It is highly probable that a certain quantity of potash in the soil may exist in combination with humic and ulmic acids, forming insoluble potassium humates and ulmates. Manures and the principles of manuring A small portion of nitrogen unites with hydrogen, forming ammonia, which remains combined with the humic and other acids. Peat and its Uses as Fertilizer and Fuel I suppose you will reply, By combining with oxygen and forming humic acid. Essays in Natural History and Agriculture We are well aware that the nitrogen present in the humic matter of the soil is readily nitrifiable. Manures and the principles of manuring Other vegetable substances, when extracted, yielded, besides humic acids, a compound, C6H7O2, soluble in alcohol and chloroform, but insoluble in water, ether, and benzene; preparations from different sources melted between 200° and 210°. Researches on Cellulose 1895-1900 The second class of substances formed are soluble organic acids, such as humic and ulmic acids. Manures and the principles of manuring In such soils humic acids are present and the requisite alkalinity is thus awanting. Manures and the principles of manuring |
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