冬小麦氮养分高效利用技术集成研究  

Integrated Technique System of High Nitrogen Use Efficiency in Winter Wheat

作　　者：马志远[1] 赵萍萍[2] 王宏庭[2] 

机构地区：[1]山西省农业科学院,山西太原030006 [2]山西省农业科学院农业环境与资源研究所,山西太原030006

出　　处：《山西农业科学》2011年第9期959-962,共4页Journal of Shanxi Agricultural Sciences

基　　金：国家"十一五"科技支撑计划项目(2008BADA4B07;2006BAD25B01)

摘　　要：有效的氮肥管理是农业可持续发展面临的重大挑战。通过田间试验,研究优化施肥结合秸秆还田能否达到降低氮肥施用量、提高肥料利用率的效果。结果表明,施肥仍是提高冬小麦产量的重要措施;与当地施肥推荐量比较,优化施肥结合秸秆还田措施及施用生物腐熟剂可以达到提高产量、增加收益、减少1/4氮投入的效果,同时氮肥利用率提高17.1百分点。Effective nitrogen management is one of the most challenging tasks for sustainable agriculture. This field experiment was conducted in a randomized design with four replicates to study the effect of optimizing fertilizer application and stalk r utilization in the fields of winter wheat. The results showed that fertilizer application was still an important measure to improve yield. Comparing to local fertilizer recommendations, the treatment of optimizing fertilization and stalk reutilization in the fields could increase the yield and profit and decrease N input by 1/4. At the mean time, the rocovery of nitrogen use incroaed percentage by 17.1.

关 键 词：冬小麦 产量 施肥 氮肥利用率 

分 类 号：S512[农业科学—作物学]