摘要
利用三种不同长度的土柱 ,模拟研究了有机肥对土壤剖面中土壤硝态氮淋失的影响。结果表明 ,有机肥对KNO3氮肥中 NO- 3 — N的淋失有一定抑制作用 ;施加有机肥可提高土壤碱解态氮含量 ;有机肥本身亦可产生NO- 3 — N淋失。
The simulated test was conducted by means of three kinds of soil column of 60 cm, 100 cm and 150 cm length. The results were as follows: The organic manure could reduce leaching of NO - 3-N from KNO 3 addition and increase the level of soil hydrolable nitrogen. The organic manure itself could produce leaching of NO - 3-N in soil column.
出处
《水土保持研究》
CSCD
2000年第4期123-126,共4页
Research of Soil and Water Conservation
基金
中国科学院重点研究项目基金资助! (批准号 Z10 2 )
