广西植物Issue(1)：96-101,6.
不同耕作方式下水稻品种吉优716产量及氮素吸收利用对氮肥运筹的响应
Response of yield,nitrogen uptake in Jiyou716 to nitrogen management under different tillage patterns
摘要
Abstract
Characteristics of rice yield formation and nitrogen uptake under different soil tillage patterns and nitrogen fertilizer management patterns were studied ,which provided theoretical basis for rice rational fertilizer application un‐der different tillage systems .With Jiyou716 as materials for field experiments ,change of yield ,nitrogen uptake in rice at three N rates(N0 ,N1 ,N2) and two fertilizering patterns (F1 ,F2) under no‐tillage and conventional tillage were studied .The results indicated that response of yield and nitrogen uptake of rice to nitrogen amount were basically similar under no‐tillage and conventional tillage ,but inconsistent to nitrogen fertilizering pattern .With N rate increas‐ing ,the yield ,dry matter accumulation and N accumulation of rice increased ,and N production efficiency ,dry matter harvest index and N agronomy efficiency decreased .Heavy earring fertilizer was better for N accumulation and dry matter accumulation increase under no‐tillage and conventional tillage .But inconsistent response for grain yield .Heavy earring fertilizer was in favor of yield increase under no‐tillage while heavy basic fertilizer and tillering fertilizer was better for yield increase under conventional tillage .关键词
耕作方式/施氮量/施氮方式/氮素利用/产量/水稻Key words
tillage pattern/N-fertilizer/N-fertilizer mode/nitrogen utilization/yield/rice分类
农业科技引用本文复制引用
杨彩玲,郑土英,刘立龙,赵荣德,徐世宏,江立庚..不同耕作方式下水稻品种吉优716产量及氮素吸收利用对氮肥运筹的响应[J].广西植物,2013,(1):96-101,6.基金项目
国家现代农业产业技术体系广西水稻创新团队专项 （）
广西科学基金重点项目(0991010Z) （0991010Z）
广西科技攻关项目(桂科攻10100004-6) （桂科攻10100004-6）
