28%苄嘧磺隆·二氯喹啉酸WP对水稻秧田杂草及产量的影响  

Effects of 28% Wettable Powder Mixed with Bensulfuron-Methyl and Quinclorac on the Nutrients of Rice Seedling Bed and Yield

作　　者：朱文达[1] 张佳[2] 彭昌明 熊焱 晋华斌 王晶[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]农业部农药检定所,北京100125 [3]江西正邦生物化工股份有限公司,南昌330096 [4]四川省西昌市植物保护站,四川西昌615000

出　　处：《湖北农业科学》2013年第7期1574-1576,共3页Hubei Agricultural Sciences

基　　金：国家"十一五"科技支撑项目(2006BAD08A09)

摘　　要：研究了28%苄嘧磺隆·二氯喹啉酸对水稻秧田稗草[Echinochloa crusgalli(L.)Beauv.]、鸭舌草[Monochoia vaginalis(Burm.f.)]等的防除效果,并测定了杂草对氮、磷、钾和水分的影响以及对水稻产量的影响。结果表明,28%苄嘧磺隆.二氯喹啉酸WP对水稻秧田的主要杂草具有良好的防治效果,有效成分用量为168～420 g/hm2的28%苄嘧磺隆.二氯喹啉酸对水稻秧田稗草密度防效和鲜重防效分别为84.06%～98.50%、91.55%～98.63%,对鸭舌草的密度防效和鲜重防效分别为94.06%～100.00%、90.94%～100.00%,显著优于对照药剂10%苄嘧磺隆WP和50%二氯喹啉酸WP。28%苄嘧磺隆.二氯喹啉酸施用后,增产效果总体优于对照药剂,在水稻秧田具有良好的推广前景。Trials were conducted to evaluate the effects of 28% wettable powder mixed with quinclorac and bensulfuron methyl on controlling of Echinochloa crusgalli(L.) Beauv.and Monochoria vaginalis(Burm.f.),as well as crop yield and absorption of nitrogen,phosphorus,kalium and moisture by weeds.The results showed that 28% wettable powder mixed with bensulfuron-methyl and quinclorac had good control efficiency on the main weeds in rice seedling fields.The density control effects and fresh weight control effects against E.crusgalli were 84.06%～98.50% and 91.55%～98.63% respectively,while against M.vaginalis were 94.06%～100.00%,and 90.94%～100.00%,with 168~420 g/hm2 effective constituent which were significantly higher than 10% bensulfuron-methyl WP and 50% quinclorac WP.The yield increasing effect of application of 28% wettable powder mixed with bensulfuron-methyl and quinclorac was higher than that of control herbicides,which had good application prospects in rice seedling fields.

关 键 词：28%苄嘧磺隆·二氯喹啉酸 杂草防效 养分 水分 产量 

分 类 号：S[农业科学]