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Brian Mengel,
Civil Servant
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An additional 75 pounds of nitrogen per acre was applied as ammonium nitrate on 29 May and again on 13 June.
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Zhang Xian Qian,
Ex-Olympic Swimmer
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Nitrate-N, ammonium-N and carbon to nitrogen ratio (C/N) can also be tested.
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Billie Kirgan,
Machinist
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When plants are grown in the presence of ammonium instead of nitrate as a source of nitrogen, the nitrate reductase gene is expressed at very low levels, and is not sensitive to chlorate which is an inhibitor of nitrate reductase.
Use one to two inches of livestock manure, or a nitrogen fertilizer such as ammonium nitrate or ammonium sulfate at a rate of one third of a cup for every twenty five square feet of surface area.
Nitrate was the predominant nitrogen species among all the oxidised forms of nitrogen and the levels of nitrite and ammonium were very low as compared to the nitrate levels.
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Arthur Dawkins,
Astro-physicist
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Past research at NWREC with urea, ammonium nitrate, and other solid nitrogen sources indicated no consistent differences among nitrogen sources in effects on corn yields.
Biological oxidation of ammonium to nitrite and nitrate, or a biological induced increase in the oxidation state of nitrogen.
Past research at NWREC with urea, ammonium nitrate, and other solid N sources indicated no consistent differences among nitrogen sources in effects on corn yields.
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David Rosenberg,
Dermatologist
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Once nitrogen is in an ammonium form, it is converted to nitrate by soil microorganisms in 1 to 3 weeks.
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