四种复配茎叶除草剂对冬油菜田杂草防效及产量的影响  

Effects of four post-emergence compound herbicides on weed control and yield in winter rapeseed field

作　　者：陈坤荣[1] 曾令益 刘凡[1] 燕瑞斌 任莉[1] 徐理[1] 陈旺[1] 池鹏 方小平[1] CHEN Kun-rong;ZENG Ling-yi;LIU Fan;YAN Rui-bin;REN Li;XU Li;CHEN Wang;CHI Peng;FANG Xiao-ping(Oil Crops Research Institute,Chinese Academy of Agricultural Sciences/Key Laboratory of Biology and Genetic Improvement of Oil Crops,Ministry of Agriculture and Rural Affairs,Wuhan 430062,China)

机构地区：[1]中国农业科学院油料作物研究所/农业农村部油料作物生物学与遗传育种重点实验室,武汉430062

出　　处：《湖北农业科学》2021年第20期91-93,共3页Hubei Agricultural Sciences

基　　金：国家重点研发计划项目(2018YFDO2009)。

摘　　要：比较了4种复配茎叶除草剂油宝、油力、油达和油喜对冬油菜田的除草效果、产量影响和经济效益。结果表明,油宝、油力、油达和油喜对禾本科杂草及猪殃殃(Galium spurium)有显著兼除效果,施药60 d后杂草鲜重防效均在98.0%以上,对阿拉伯婆婆纳(Veronica persica)防除效果差。油菜喷施油宝、油力、油达和油喜株高分别降低4.64%、4.96%、2.61%和2.99%;一次有效分枝数分别增加5.88%、7.84%、13.73%和13.73%;有效角果数分别增加5.21%、4.69%、7.33%和9.02%;产量分别增加7.64%、7.31%、9.63%和14.62%。扣除农药和劳动力成本,每公顷油菜分别增收275.0、175.0、350.0、665.0元。The effects of 4 post-emergence compound herbicides on weed control,yield and economic income in winter rapeseed field were investigated.The results showed four herbicides including Youbao,Youli,Youda and Youxi were very effective to control grass weeds and Galium spurium.The control effects of weed fresh weight were more than 98%60 d after spraying herbicide.All four herbi⁃cides had little control effect to Veronica persica.The height of rapeseed plant sprayed with Youbao,Youli,Youda and Youxi reduced by 4.64%,4.96%,2.61%and 2.99%,respectively.Effective branch number of main stem increased by 5.88%,7.84%,13.73%and 13.73%,respectively.Number of effective pods increased by 5.21%,4.69%,7.33%and 9.02%,respectively.Plant yield increased by 7.64%,7.31%,9.63%and 14.62%,respectively.Economic income increased by 275.0,175.0,350.0,665.0 yuan/hm^(2) after de⁃ductions the cost of herbicide and labour,respectively.

关 键 词：除草剂 杂草 防治效果 油菜产量 

分 类 号：S451.22[农业科学—植物保护]