烟·硝·莠去津-精异丙甲草胺组合防除春玉米杂草效果与安全性  

Effect and safety of nicosulfuron·mesotrione·atrazine and S-metolachlor in controlling spring corn weeds

作　　者：龙水亮 吴晓峰 雷干农 孔玄庆 金晨钟 李成业 欧晓明[3] 唐娟 LONG Shui-liang;WU Xiao-feng;LEI Gan-nong;KONG Xuan-qing;JIN Chen-zhong;LI Cheng-ye;OU Xiao-ming;TANG Juan(Yongzhou Agricultural and Rural Bureau of Lingling District,Yongzhou 425100,Hunan,China;Yongzhou Agricultural Science Research Institute,Yongzhou 425100,Hunan,China;Hunan Chemical Research Institute,Changsha 410000,China;Hunan Province Collaborative Innovation Center for Weed Control and Application in Farmland,Loudi 413800,Hunan,China;Yongzhou Agricultural and Rural Bureau of Shuangpai District,Shuangpai 425200,Hunan,China)

机构地区：[1]永州市零陵区农业农村局,湖南永州425100 [2]永州市农业科学研究所,湖南永州425100 [3]湖南化工研究院,长沙410000 [4]湖南省农田杂草防控应用协同创新中心,湖南娄底413800 [5]永州市双牌县农业农村局,湖南双牌425200

出　　处：《湖北农业科学》2020年第14期80-84,124,共6页Hubei Agricultural Sciences

基　　金：湖南省旱粮产业技术体系研究项目(湘农办科技[2016]108号);湖南省2015年研究生创新科研项目(CX2015B596);湖南省高校创新平台开放基金项目(17K065)。

摘　　要：以春玉米大田单独苗前封闭除草方式、单独苗后除草方式为对照,调查苗前封闭除草结合苗后除草施用方式对湖南省永州市玉米田主要杂草空心莲子草[Alternanthera philoxeroides(Mart.)Griseb.]、藜(Chenopodium album L.)和野艾蒿(Artemisia lavandulaefolia DC)的防效及对玉米的安全性。结果表明,苗前喷施精异丙甲草胺1200~1800 g/hm^2封闭除草,结合苗后喷施28%烟嘧磺隆·莠去津·硝磺草酮复配剂2100~3000 g/hm^2除草的方式,对3种杂草在苗后除草剂施药后55 d的株防效和鲜重防效均在90%以上,总体高于单独处理且具长效性和安全性。Using the closed weeding method before single seedling and the single weeding method after seedling in spring maize fields as control,the effects of the closed weeding method before seedling combined with the application method after seedling on Alternanthera Philoxeroides(Mart.Griseb.),Chenopodium album L.and Artemisia lavandulaefolia DC in the maize fields of Yongzhou city,Hunan province were investigated.The results showed that the pre-emergence spraying S-metolachlor 1200~1800 g/hm^2,combined with post-emergence spraying 28% of nicosulfuron·mesotrione·atrazine 2100~3000 g/hm^2,the three kinds of weeds in seedling after applying pesticide,herbicide,the control effect and fresh weight of 55 d were over 90%,the overall higher than that of individual treatment and long-term effectiveness and safety.

关 键 词：精异丙甲草胺 烟嘧磺隆·莠去津·硝磺草酮 玉米田杂草 除草效果 长效性 安全性 

分 类 号：S482.4[农业科学—农药学]