20%甲二·异丙隆OD防治小麦田禾本科杂草效果及安全性  

The Efficacy and Safety of Mesosulfuron-Methyl·Isoproturon 20% OD in Controlling Gramineae Weeds in Wheat Fields

作　　者：柏振东 曹战强 李皓 柏浩东 韩进财 许洁 黄新杰[1] 李祖任 BAI Zhen-dong;CAO Zhan-qiang;LI Hao;BAI Hao-dong;HAN Jin-cai;XU Jie;HUANG Xin-jie;LI Zu-ren(Hunan Biological and Electromechanical Polytechnic,Changsha 410127,PRC;Hunan Provincial Key Laboratory for Biology and Control of Weed,Hunan Agricultural Biotechnology Research Institute,Changsha 410125,PRC;Xianglin Meifeng Biotechnology(Huai'an)Co.,Ltd.,Huai'an 223000,PRC)

机构地区：[1]湖南生物机电职业技术学院,湖南长沙410127 [2]湖南省农业生物技术研究所,杂草生物学及安全防控湖南省重点实验室,湖南长沙410125 [3]祥霖美丰生物科技(淮安)有限公司,江苏淮安223000

出　　处：《湖南农业科学》2023年第7期68-72,共5页Hunan Agricultural Sciences

基　　金：湖南省农业创新项目(2021CX42,2022CX11,2022CX70);湖南省现代产业技术体系项目(2022-31)。

摘　　要：为了明确除草剂20%甲二·异丙隆OD对小麦田禾本科杂草的防效及其对作物的安全性,采用室内试验和田间试验评价20%甲二·异丙隆OD的杀草活性及对小麦的安全性。结果表明:室内试验中,当浓度为3 600 g a.i./hm^(2)时,20%甲二·异丙隆OD对禾本科杂草看麦娘、菵草和早熟禾的室内鲜重抑制率分别为82.94%、89.22%、94.75%,且对小麦幼苗生长无影响;田间试验中,浓度3 600 g a.i./hm^(2)施药处理30 d后,对小麦田杂草看麦娘、菵草、繁缕的株防效和鲜重防效均大于90%,且对小麦幼苗生长无影响。试验结果表明,20%甲二·异丙隆OD可有效防除小麦田禾本科杂草且对小麦生长无影响,有利于有效解决小麦田草害问题,促进小麦产业节本增效、高质丰产。In order to investigate the herbicidal efficacy and crop safety of mesosulfuron-methyl·isopropyluron 20% OD on Gramineae weeds in wheat fields,indoor and field experiments were conducted.Indoor experimental results showed that at a dose of 3600 g a.i./hm^(2),the fresh weight inhibition rates of Alopecurus aequalis,Beckmannia syzigachne,and Poa annua were 82.94%,89.22% and 94.75%,respectively,and there was no influence on the growth of wheat seedlings.Field plot experiment results showed that 30 days after spraying at a dose of 3600 g a.i./hm^(2),the plant control efficacy and fresh weight control efficacy of Alopecurus aequalis,Beckmannia syzigachne,and Stellaria media were all above 90%,and there was no visible influence on the growth of wheat seedlings.The above results indicate that mesosulfuron-methyl·isopropyluron 20% OD can effectively control Gramineae weeds in wheat fields without affecting the growth of wheat.This is beneficial for effectively solving weed problems in wheat fields,promoting cost reduction,increasing efficiency,and achieving high-quality and abundant wheat production.

关 键 词：甲基二磺隆 异丙隆 20%甲二·异丙隆OD 除草活性 安全性 小麦 杂草 

分 类 号：S482.4[农业科学—农药学]