摘要
在华北地区研究了小麦、玉米一年两熟条件下不同耕作方式、不同品种、不同播量、不同播期对冬小麦产量的影响。结果表明,试验中玉米秸秆粉碎覆盖还田免耕播种小麦较玉米秸秆不还田翻耕、玉米秸秆粉碎还田旋耕播种小麦3年均表现为减产,减产幅度8.3%～25.0%;而通过选择适宜的品种、播期,增加播量,能够在一定程度上减小保护性耕作方式下冬小麦的减产幅度。
The winter wheat yield, which is affected by tillage pattern, variety, seed amount and seeding time, was investigated under wheat-maize double cropping system in the North China Plain. The results indicated that no-tillage with broken maize straw-mulch reduced winter wheat yield from 8.3% to 25.0% in three years. The reduction of yield would be alleviated through selecting suitable varieties ,fitting seeding time and increasing seed amount.
出处
《作物杂志》
CAS
CSCD
北大核心
2008年第4期50-52,共3页
Crops
基金
国家科技攻关计划项目(2004BA520A14-3)
国家科技支撑计划(2006BA15B03)
关键词
华北平原
冬小麦
产量
保护性耕作
North China Plain
Winter wheat
Yield
Conservation tillage
