| 单词 | humic acid |
| 例句 | 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 When a plant dies, decay brings organic material, a component of which is large carbon-based molecules called humic acids, into the soil and binds them to the soil’s molecules. The new plan to remove a trillion tons of carbon dioxide from the atmosphere: Bury it. 2019-06-12T04:00:00Z 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 Under UV light, growth bands with more humic acid show up more brightly than bands from drier years. North Australia set to face more weather extremes, corals show 2011-02-10T13:33:06Z 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 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 residues, which are insoluble in water, but redissolve in ammonia, have the properties of humic acids. Researches on Cellulose 1895-1900 I suppose you will reply, By combining with oxygen and forming humic acid. Essays in Natural History and Agriculture 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 In such soils humic acids are present and the requisite alkalinity is thus awanting. Manures and the principles of manuring |
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