复配除草剂对青海省玉米田杂草防除效果  

Control Effect of Herbicide Mixtures on Weeds in Corn of Qinghai Province

作　　者：闫佳会 郭良芝 YAN Jia-hui;GUO Liang-zhi(Key Laboratory of Agricultural Integrated Pest Management,Qinghai Province,Scientific Observing and Experimental Station of Crop Pest in Xining,Ministry of Agriculture,Academy of Agriculture and Forestry Sciences,Qinghai University,Xining,Qinghai 810016)

机构地区：[1]青海大学农林科学院农业部西宁作物有害生物科学观测实验站青海省农业有害生物综合治理重点实验室

出　　处：《安徽农业科学》2019年第22期139-141,共3页Journal of Anhui Agricultural Sciences

基　　金：国家重点研发计划项目(2017YFD0201807)

摘　　要：选用5种复配除草剂进行玉米田杂草防除效果及安全性研究,筛选对玉米田杂草防效及安全性较好的除草剂。结果表明,20%烟嘧·莠去津OD 540 g/hm^2+288 g/L氯氟吡氧乙酸EC 129.6 g/hm^2+56%二甲四氯SP 252 g/hm^2复配组合,施药20 d对总阔叶草株防效为86.9%;施药40 d对总阔叶草株防效为90.6%;施药40 d对总阔叶草鲜重防效为95.6%。使用20%烟嘧·莠去津OD 540 g/hm^2+288 g/L氯氟吡氧乙酸EC+56%二甲四氯SP于玉米田苗后杂草2~4叶期进行茎叶喷雾处理,对玉米安全,除草效果良好,可以作为玉米田的主要除草剂进行使用。In order to screen out the safe and effective herbicides against weeds and safety in maize field,field experiments were carried out on 5 mixtures herbicides.At 20 d after treatment,the average plant control effects of nicosulfuron·atrazine 20%OD 540 g/hm^2+fluroxypyr 288 g/L EC 129.6 g/hm^2+chipton 56%SP 252 g/hm^2were 86.9%.At 40 d after treatment,the average plant control effects and final control effect were 90.6%,95.6%,respectively.Nicosulfuron·atrazine 20%OD 540 g/hm^2+fluroxypyr 288 g/L EC 129.6 g/hm^2+chipton 56%SP all could be used at 2 to 4 leaf stage in corn field by stems-leaves spraying.It was safe on corn and controled effectively weeds.So it could be used as the major herbicide in corn field.

关 键 词：玉米 杂草防除 安全性 青海省 

分 类 号：S482.4[农业科学—农药学]