Ying yong sheng tai xue bao = The journal of applied ecology / Zhongguo sheng tai xue xue hui, Zhongguo ke xue yuan Shenyang ying yong sheng tai yan jiu suo zhu ban 2005-02-01

[Effects of urease and nitrification inhibitors on alleviating the oxidation and leaching of soil urea's hydrolyzed product ammonium].

Zhenhua Chen, Lijun Chen, Zhijie Wu

Index: Ying Yong Sheng Tai Xue Bao 16(2) , 238-42, (2005)

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Abstract

With simulation test of in-situ soil column, this paper studied the effects of urease inhibitor hydroquinone (HQ), nitrification inhibitors coated calcium carbide (ECC) and dicyandiamide (DCD),and their different combinations on the persistence, oxidation, and leaching of soil urea's hydrolyzed product ammonium. The results showed that compared with other treatments, the combination of HQ and DCD could effectively inhibit the oxidation of the ammonium, and make it as exchangeable form reserve in soil in a larger amount and a longer period. The inhibition of this oxidation not only decreased the accumulation of oxidized product NO3- in soil, but also decreased the potential of NO3- leaching, making the NO3- only leach to 5-10 cm in depth, and the leached amount significantly decreased.

Related Compounds

  • Calcium carbide

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