延边地区狼巴草的生态学特性及其防除技术  

Ecological characteristics and preventive technology of Bidens in Yanbian area

作　　者：崔锡花[1] 杜晓军[1] 曹凤秋[1] 蔡春鹏[2] 吴明根[1] 

机构地区：[1]延边大学农学院农学系,吉林延吉133002 [2]延边大学学报编辑部,吉林延吉133002

出　　处：《延边大学农学学报》2004年第3期183-188,共6页Agricultural Science Journal of Yanbian University

摘　　要：狼巴草属于外来草,是延边地区的检疫对象.延边地区五大河流流域均大量发生美国狼巴草(Bidens frondosa L.)和狼巴草(Bidens tripartita L.),同时在龙井地区稻田还发现柳叶鬼针草(Bidens cernua L.).狼巴草已经成为稻田周围的优势草种,开始侵入稻田.稻田深水管理可以抑制狼巴草种子的发芽出土;稻田化学除草剂在正常剂量条件下,丁草胺(Butachlur:60％,1500 mL／hm2)药效差,农得时(Bensulfuron-methyl:10％,300 g／hm2)、草克星(Pyrazosul-fulron-ethyl:10％,210 g／hm2)药效较好,苯达松(Bentazone:48％,3000 mL／hm2)、2甲4氯钠盐(MCPA:70％,1000 g／hm2)药效最佳.Bidens are ab-extra and quarantine weeds of Yanbian area. Enormous Bidens fron-dosa L. and Bidens tripartite L. occurred in the drainage areas of five rivers in Yanbian area. Bidens cernua L. were found in the rice fields of Longjing area. Bidens had begun to invaded into the rice fields and become predominant weeds around the fields. The sprouting of Bidens seeds could be restrained by deep-water management. The preventive effects of butachlur(60% 1500 mL/hm2) was inferior, bensulfuron-methyl(10% 300 g/hm2) and pyrazosulfulron-ethyl (10% 210 g/hm2) were quite good. The effect of bentazone(48% 3000 mL/hm2) and MCPA (70% 1000 g/hm2) were the best.

关 键 词：狼巴草 生态学特性 防除 

分 类 号：S451.2[农业科学—植物保护]