摘要
为了筛选高效安全的小麦田除草剂,对现有除草剂进行替换,达到减量增效的目的。采用农药登记田间药效的方法进行试验。结果表明,推荐65%苯·二甲·氯吡WDG制剂量214.5g/hm;兑水300L/hm;于春小麦3-5叶期进行茎叶喷雾,药后40d对猪殃殃、藜的鲜重防效达到75%以上。施药后春小麦叶色与空白对照区比较无明显差异。说明65%苯·二甲·氯吡WDG对小麦田阔叶杂草有较好的防效,且对春小麦安全。
In order to screen high-efficiency and safe herbicides for wheat fields, the existing herbicides were replaced to achieve the purpose of reducing the amount of herbicides and increasing efficiency.Use the method of pesticide registration field efficacy to test.The results showed that the recommended 65% Benzene·Dimethyl·Clopyridine WDG preparation amount of 214.5 g/hm;mixed with water 300 L/hm;was used to spray the stems and leaves of field weeds at the 3-5 leaf stage of spring wheat.At 40 days after the last application, The control effect of 65%Benzene·Dimethyl·Clopyridine WDG against Galium aparine L.and Chenopodium album L.could be over 75% after applied.There was no obvious difference between spring wheat leaf color and the blank control area after application.This shows that 65% Benzene·Dimethyl·Clopyridine WDG has a good control effect on broad-leaved weeds in wheat fields and is safe for spring wheat.
作者
雷向荣
李玮
LEI Xiang-rong;LI Wei(Qinghai University,Xining Qinghai 810016,China;Academy of Agriculture and Forestry,Qinghai University,Xining Qinghai 810016,China;Key Laboratory of Agricultural Integrated Pest Management of Qinghai,Xining Qinghai 810016,China;Scientific Observing and Experimental Station of Crop Pest in Xining,Ministry of Agriculture and Rural Affairs,Xining Qinghai 810016,China)
出处
《青海农林科技》
2022年第1期23-27,共5页
Science and Technology of Qinghai Agriculture and Forestry
基金
化学农药协同增效关键技术及产品研发(2016YFD0200504-05)。
