摘要
通过田间埋袋试验,探讨脲酶抑制剂N-丁基硫代磷酰三胺（NBPT）与不同硝化抑制剂双氰胺（DCD）、3-甲基吡啶-1-1羧酰胺（CMP）和4氨基-1,2,4-三唑盐酸盐（ATC）组合对土壤尿素氮转化的影响。结果表明：添加不同硝化抑制剂DCD、CMP、ATC时,均能不同程度减缓尿素水解,并且可推迟尿素水解5d,增加土壤有效N含量,其中添加硝化抑制剂CMP,对土壤NH4＋^-N和NO3-^-含量变化、硝化抑制率和土壤总有效N水平的影响最大。
Through the field experiment with buried bag,urease inhibitors（N-Butyl sulfur and phosphorus acyl three amines,NBPT）with different nitrification inhibitors dicyandiamide（DCD）,3-generators-1-1 Carboxy（CMP） and 4-amino-1,2,4-triazole hemifumarate（ATC） of the combination of urea transformation.The results showed that different nitrification inhibitors（DCD,CMP,ATC） were able to slow urea hydrolysis to varying degrees and could delayed urea hydrolysis 5d,increase soil N content.The nitrification inhibitor（CMP）,could improve soil NH4＋-N and NO3--N content,nitrification rate and soil total N levels.
出处
《沈阳农业大学学报》
CAS
CSCD
北大核心
2010年第3期339-341,共3页
Journal of Shenyang Agricultural University
基金
国家科技支撑项目(2004BA520A)
关键词
尿素
氮素利用率
脲酶抑制剂
硝化抑制剂
nitrogen use efficiency
urease inhibitor
nitrification inhibitor
