摘要
采用室内培养 ,研究了两种草炭对尿素在土壤中转化后的铵态氮和碱解动态变化的影响以及其原因。结果表明 ,不论是石河子草炭或是加拿大草炭 ,在抑制尿素硝化产生硝态氮的同时对氨的挥发有一定的抑制作用 ,使土壤在较长的时间内 (2周内 )保持较高的铵态氮含量 ,草炭的加入活跃了土壤中微生物 ,减少了肥料氮素的损失。
This paper is discussed of the effect and the cause of that two kinds of peat affect the dynamic change of ammonia and alkali dissolved nitrogen that come from the urea in the soil by incubated indoors. The result is that not only Shihezi peat but also Canadian peat can restrain nitration of the ammonia nitrogen and prevent the volatilization of ammonia, which can make the soil keeps higher ammonia in long time (in two weeks). Addition of peat actives microbial in the soil, and decreases the loss of nitrogen in the fertilizer.
出处
《干旱区研究》
CSCD
2000年第2期65-69,共5页
Arid Zone Research
