野燕麦防除对冬小麦田间光照、养分和水分的影响  

The Influence of Avena fatua L. Control on the Light Penetration Rate,Nutrition and Moisture in Winter Wheat Fields

作　　者：朱文达[1] 喻大昭[1] 何燕红[2] 李林[1] 

机构地区：[1]湖北省农业科学院植保土肥研究所,武汉430064 [2]华中农业大学园艺林学学院,武汉430070

出　　处：《华中农业大学学报》2010年第2期160-163,共4页Journal of Huazhong Agricultural University

基　　金：国家"十一五"科技支撑计划项目(2006BAD08A09)资助

摘　　要：选用15%顶尖可湿性粉剂(wettable powder,WP)对冬小麦田间的杂草野燕麦进行防除,测定田间离地不同高度层的透光率和野燕麦对养分、水分的消耗,观察野燕麦防除后对冬小麦田间光照、养分和产量的影响。结果表明:15%顶尖WP能有效控制冬小麦田间野燕麦的发生,对野燕麦的密度防效和鲜重防效分别为97.27%～100.00%和98.86%～100.00%;野燕麦防除后能显著提高冬小麦田间的透光率,改善小麦顶层的光照,同时降低杂草对田间养分和水分的吸收,促进光合作用的进行,从而显著提高冬小麦的产量。In this research,15% Topik wettable powder（WP） was applied to investigate the control effects of Avena fatua L.and the influence of weed control on sunlight,nutrition and crop yield of winter wheat.The results showed that 15% Topik WP had good control effects on Avena fatua L..The density and fresh control effects reached 97.27%～100.00% and 98.86%～100.00% respectively.The application of Topik significantly improved the light conditions in winter wheat fields and reduced the weeds absorption of nutriton and moisture,resulting in a significant acceleration of photosynthesis and prominent effects of yield enhancing.

关 键 词：顶尖 野燕麦 冬小麦 透光率 养分 水分 

分 类 号：S451.221[农业科学—植物保护]