山东农业科学2013，Vol.45Issue(7)：87-90,4.
水氮耦合对冬小麦不同生育期干物质积累量及水分利用效率的影响
Effects of Water-Nitrogen Coupling on Dry Matter Accumulation and Water Use Efficiency of Winter Wheat at Different Growth Stages
李锁玲 1孟瑞娟 1卢健2
作者信息
- 1. 菏泽市气象局,山东菏泽274000
- 2. 菏泽学院,山东菏泽274000
- 折叠
摘要
Abstract
Under field condition,using local main winter wheat cultivar Weimai 8 as material,the effects of water-nitrogen coupling on the dry matter accumulation and water use efficiency (WUE) of winter wheat at different growth stages were studied by completely random design.The results showed that irrigation and fertilization at turning green to jointing stage could increase the dry matter accumulation and WUE of winter wheat; irrigation at jointing to flowering stage had little effect on dry matter accumulation and WUE decreased with the increase of irrigation quantity; the dry matter accumulation was the maximum treated with high water and nitrogen (W2N2) at flowering to filling stage,while WUE were higher at lower water level.Taken together,medium water and high nitrogen (W1 N2) was the optimal treatment for improving the dry matter accumulation and WUE of winter wheat at growth period.关键词
水氮耦合/冬小麦/不同生育期干物质量/水分利用效率Key words
Water-nitrogen coupling/ Winter wheat/ Dry matter accumulation at different growth stages/ Water use efficiency分类
农业科技引用本文复制引用
李锁玲,孟瑞娟,卢健..水氮耦合对冬小麦不同生育期干物质积累量及水分利用效率的影响[J].山东农业科学,2013,45(7):87-90,4.
