农田土壤氮素循环及其对土壤氮流失的影响  

Soil Nitrogen Cycle in Agro-ecosystem and its Influence on Soil Nitrogen Loss

作　　者：李琴[1] 

机构地区：[1]重庆工商大学旅游学院,重庆400067

出　　处：《安徽农业科学》2007年第11期3310-3312,共3页Journal of Anhui Agricultural Sciences

摘　　要：分析了土壤氮素循环及其对土壤氮流失的影响,提出了加强氮肥管理、重视平衡施肥、提高作物氮素吸收能力、优化耕作制度及灌溉方式等降低我国农田土壤氮素流失的主要对策。After analyzing the relationships between soil nitrogen cycle and soil nitrogen loss approach, some control measures including balancing fertilization, enhancing plant capability of nitrogen absorption, optimizing nitrogen management, cultivation system and irrigation mode were put forward.

关 键 词：氮素形态 土壤氮素转化 氮流失 非点源污染 控制措施 

分 类 号：S153.61[农业科学—土壤学]