化学除草剂防除直播油菜田杂草的效果研究  

Study on the Control Effects of Chemical Herbicides on Weeds in Direct Seeding Rape Field

作　　者：任廷波 赵继献[1] 戴祥来 胡权 REN Ting-bo;ZHAO Ji-xian;DAI Xiang-lai;HU Quan(Rape Institute,Guizhou Academy of Agricultural Sciences,Sinan,Guizhou 565109,China)

机构地区：[1]贵州省农业科学院油菜研究所,贵州思南565109

出　　处：《耕作与栽培》2018年第5期10-12,共3页Tillage and Cultivation

基　　金：贵州省现代农业产业技术体系建设项目"油菜产业技术体系建设"(GZCYTX2013-0802);贵州省科技计划项目"高油酸甘蓝型油菜种质创新及利用"[黔科合支撑(2016)2556号]

摘　　要：为了明确除草剂防除直播油菜田杂草的效果,以臻油89为材料,进行17. 5%精喹·草除灵和金油草双拳除草剂不同施用量的除草效果试验。结果表明,2种除草剂均能防除直播油菜田的阔叶杂草和禾本科杂草;金油草双拳比17. 5%精喹·草除灵的除草效果较好。金油草双拳150mL/667m2的除草效果最好,药后60d总株防效89. 6%,总鲜重防效92. 17%,防效达显著水平。除草剂除草比人工中耕除草减少除草费用75元/667m2;且调查未发现2种除草剂对油菜的药害现象。In order to clarify the effect of herbicides on weed control in direct-seeded rapeseed field,the herbicidal effect of 17.5%quizalofop-p-ethyl&benazolin and golden-oil-grass double-fisted herbicides on seed rape field was studied with zhenyou 89 as material.The results showed that,2 herbicides can control broad-leaved weeds and gramineous weeds in direct seeding rape fields.The herbicidal effect of golden-oil-grass double-fisted is better than that of 17.5%quizalofop-p-ethyl&benazolin.The herbicidal effect of golden-oil-grass double-fisted 150mL/667m^2 was the best.The total plant control effect was 89.6%and the total weight control effect was 92.17%in 60 days after the medicine.The control effect reached a significant level.The Herbicides Weeding than artificial cultivation weeding,reduce herbicidal cost 75 yuan/667m^2.2 herbicides for rape safety.

关 键 词：化学除草剂 直播油菜 除草效果 杂草 

分 类 号：S451.224[农业科学—植物保护]