山东农业科学2013，Vol.45Issue(3)：47-51,5.
秸秆还田条件下不同耕作方式和氮肥配施对冬小麦生长发育的影响
Effects of Different Tillage Methods and Nitrogen Levels on Winter Wheat Growth and Development under the Condition of Straw Returning
摘要
Abstract
With the cultivar Jimai 22 applied widely in Northern China as test material, the effects of three kinds of tillage methods combined with three nitrogen levels on agronomic traits and photosynthetic characteristics of winter wheat were studied in the condition of straw returning. The results showed that tillage and nitrogen had significant effects on agronomic traits and photosynthetic characteristics of winter wheat. Deep tillage (DT) increased the relative chlorophyll content (SPAD) , normalized difference vegetation index ( ND-VI) , spike number and tiller number, and the yield was the highest. No tillage (NT) enhanced the photosynthetic rate and spike rate, and the yield was the intermediate level. The photosynthetic rate, spike rate and yield were the least in rotary tillage (RT). The yield was increased by nitrogen, but the increasing range was determined by tillage. No tillage saved labor and cost, so deep tillage or no tillage combined with 225 kg/hm2 nitrogen fertilizer was the recommended mode.关键词
耕作方式/施氮量/小麦/光合特性/农艺性状Key words
Tillage method/ Nitrogen application amount/ Wheat/ Photosynthetic characteristic/ Agronomic trait分类
农业科技引用本文复制引用
孙铭泽,王法宏,冯波,司纪升,张宾,李升东,王峥,孔令安..秸秆还田条件下不同耕作方式和氮肥配施对冬小麦生长发育的影响[J].山东农业科学,2013,45(3):47-51,5.基金项目
山东省现代农业产业技术体系项目 （）
国家小麦现代农业产业技术体系项目(CARS-3-1-21) （CARS-3-1-21）
公益性行业(农业)科研专项(201303109-7,201203079,200903007-03) （农业）
