保墒旱直播稻田不同除草剂复配组合减量效果初报  

A preliminary report on the combined application reduction effect of herbicide in rice field with direct seeding to conserve moisture and drought

作　　者：马景 刘媛 李健荣 杨明进 方秋香[2] 许秀琴[2] 刘立峰[2] 姬宇翔 李存保 Ma Jing;Liu Yuan;Li Jianrong;Yang Mingjin;Fang Qiuxiang;Xu Xiuqin;Liu Lifeng;Ji Yuxiang;Li Cunbao(Ningxia Agricultural Technology Extension Station,Yinchuan 750001,China;Pingluo County Agricultural Technology Extension Service Center,Pingluo 753400,China;Qingtongxia Agricultural Technology and Agricultural machinery Extension Service Center,Qingtongxia 751600,China)

机构地区：[1]宁夏回族自治区农业技术推广总站,宁夏银川750001 [2]平罗县农业技术推广服务中心,宁夏平罗753400 [3]青铜峡市农业技术和农机推广服务中心,宁夏青铜峡751600

出　　处：《农业科学研究》2021年第1期84-87,共4页Journal of Agricultural Sciences

基　　金：宁夏回族自治区农业农村厅产业化项目“主要粮食作物病虫草害农药减量控害技术示范推广”。

摘　　要：为解决保墒旱直播稻田除草问题,促进农药减施,采用茎叶喷雾法比较6种除草剂组合及1种单剂对水稻田杂草的防除效果及对水稻产量的影响。结果表明:所选药剂及配方均对水稻安全,对杂草均有较好防效,且有增产效果。其中处理Ⅰ(34%敌稗EC 300 mL/667 m^(2)+25%氰氟草酯EW 200 mL/667 m^(2))的防效最高,达到92%以上,增产幅度最大(46.27%)。处理Ⅵ(25%氰氟草酯EW 200 mL/667 m^(2)+激健20 mL/667 m^(2))对稻田杂草防效为85%~95%,增产27%~43%,与处理Ⅴ(5%五氟磺草胺OD 60 mL/667 m^(2)+25%氰氟草酯EW 200 mL/667 m^(2))相比,农药减少23%,达到了农药减量增效的效果。In order to solve the problem of weeding in direct seeded rice,and reduce pesticide application,the stem and leaf spray method was used to compare the control effect of 6 herbicides combination and a single herbicide on weeds in paddy fields and their influence on rice yield.Results showed that the selected reagents and formula were safe for rice,had good control effect on weeds,and increased yield.Among them,treatⅠ(34%propanil EC 300 mL/667 m^(2)+25%cyhalofop-butyl EW 200 mL/667 m^(2))got the highest control effect,more than 92%,and got the maximum yield increase(46.27%).TreatⅥ(25%cyhalofop-butyl EW 200 mL/667 m^(2)+“JiJian”20 mL/667 m^(2))on paddy weed got control effect of 85%~95%,yield increased by 27%~43%,and compared with the treatmentⅤ(5%penoxsulam OD 60 mL/667 m^(2)+25%cyhalofop-butyl EW 200 mL/667 m^(2)),the amount of pesticide used was reduced by 23%,which achieved the effect of reducing pesticide application and increasing pesticide efficiency.

关 键 词：保墒旱直播稻田 抗药性杂草 减量增效 

分 类 号：S482[农业科学—农药学]