摘要
本文通过斜面坡地径流实验,研究了控失氮肥(尿素)在控制土壤氮素径流损失上的作用效果。结果表明:在等氮量施肥情况下,控失尿素对普通尿素氮素在径流损失上的控失率为57.50%;控失剂对照对本底对照的径流损失控失率为8.94%。
By getting across of this inclined slope runoff experiment, we investigate in the control ol soil mtrogen runoff effects on controlling nitrogen loss (urea). The resultsshow that: in the circumstances of equal nitrogen fertilization, contrast to common urea, the lost control urea can control 57.50 percent of urea nitrogen in the runoff lost. Besides, contrast to no fertilization, the nature mine substance of lost control can control 8.94 percent of nitrogen loss in runoff.
出处
《安徽农学通报》
2007年第24期30-31,21,共3页
Anhui Agricultural Science Bulletin
基金
中国科学院合肥物质科学研究院院长基金项目
关键词
径流
土壤氮素
等氮量施肥
控失率
ruonff
nitrogen in soil
equal nitrogen fertilization
rate of loss control
作者简介
吴林(1983-),男,安徽枞阳人,在读博士,从事控失肥损失途径与环境影响评价研究。