2,4-D丁酯对轮叶马先蒿的防除效果及对草地植被的影响  

Studies of chemical control of Pedicularis verticilata with 2,4-D butyl ester and the effect on grassland vegetation

作　　者：张晓艳[1] 胡玉昆[2] 姬承东[1] 郭正刚[3] 公延明[2,4] 

机构地区：[1]湖南涉外经济学院高尔夫系,湖南长沙410205 [2]中国科学院新疆生态与地理研究所,新疆乌鲁木齐830011 [3]兰州大学草地农业科技学院,甘肃兰州730020 [4]中国科学院研究生院,北京100039

出　　处：《草业学报》2009年第4期168-174,共7页Acta Prataculturae Sinica

基　　金：新疆科技厅攻关计划项目(200533122);新疆巴音郭楞蒙古自治州科技重大项目(20054046)资助

摘　　要：为有效灭除草地害草轮叶马先蒿,采用2,4-D丁酯在巴音布鲁克高寒草地进行了不同时期不同剂量化学防除试验。结果表明,防除轮叶马先蒿的最佳时期为盛花期;最佳药品用量是0.066 mL/m2;喷施2,4-D丁酯后,草地植被生态环境得到明显改善,轮叶马先蒿被部分或完全灭除,优良牧草垂穗披碱草在草地群落中占据优势地位,同时杂类草新疆假龙胆受到一定的抑制,草地质量明显提高。The herbicide 2,4-D butyl ester was used to control Pedicularis verticilata efficiently. The best time for control of P. verticilata was florescence and the concentration was 0. 066 mL/m^2. The grassland vegetation ecological environment was obviously improved after spraying 2,4-D butyl ester herbicide. P. verticilata was entirely or partially controlled and the high quality forage Elymus multicaulis became dominant. The harmful grassland weed Gentianella turkestanorum was inhibited to some degree. In summary, grassland quality was efficiently improved.

关 键 词：高寒草地 2  4-D丁酯 轮叶马先蒿 化学防除 

分 类 号：S451.23[农业科学—植物保护]