摘要
氮素化肥(N肥)的大量施用,在大幅度提高作物产量的同时,也造成了严重的环境污染。介绍了N素化肥施用的最大效益和最小污染的技术措施,诸如N肥最佳用量、最佳施用时间、最佳施用位置、平衡施肥、转化残留N肥等提高N肥利用率的技术,以及耕还林还草,增加豆科植物固N作用,增加有机N源等控制N肥用量措施,以期达到N肥的最大经济效益和最小污染。
The widely application of chemical nitrogen fertilizer improves the production of crop, but increases the severe environmental pollution. This article introduces the technology of best benefit and least pollution, such as the nology of best dosage, time, position, balancing fertilizer, transforming remnant nitrogen fertilizer, and method of increasing legumina nitrogen-fixing and organincal nitrogen, as to achieve the equilibrium of best benefit and least pollution.
出处
《中国农学通报》
CSCD
2004年第6期299-300,330,共3页
Chinese Agricultural Science Bulletin
关键词
氮肥
最大效益
最小污染
施肥技术
Nitrogen fertilizer, Benefit Pollution, The best, The least
