2010•Anhui nongye kexueRequires access

Effects of Nitrogen Fertilizer Combined Application with Straw and Stable Manure on Transformation of NH_4~+-N and NO_~3-N in Soil

Song Jian-guo

Abstract

7 different fertilizer treatments(①without straw,nitrogen fertilizer and stable manure; ②nitrogen fertilizer application alone; ③wheat straw+nitrogen fertilizer; ④double wheat straw+nitrogen fertilizer; ⑤wheat straw+nitrogen fertilizer+stable manure; ⑥corn straw+wheat straw+nitrogen fertilizer; ⑦corn straw+wheat straw+nitrogen fertilizer+stable manure) were set up to study the effects of different treatments on transformation of NH4+-N and NO3-N in soil at winter wheat season. The results showed that the quantity of NH4+-N and NO3-N in soil in treatments of nitrogen fertilizer combined application with straw and stable manure was the highest before winter,and that of NH4+-N and NO3-N in soil in treatments with stable manure was obviously higher than that of other treatments.

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Key concepts: Straw, Agronomy, Nitrogen, Fertilizer, Manure, Nitrogen deficiency, Nitrogen fertilizer, Chemistry