[口恶]嗪草酮与氰氟草酯混用对水直播稻田杂草防效及水稻的安全性  

Efficacy of Oxaziclomefone Mixed with Cyhalofop-Butyl on Weeds in Wet-Directed Seeding Rice and its Crop Selectivity

作　　者：朱锦磊[1] 张慧 杨爱国 王红春[4] 徐蓬[4] 王可 ZHU Jin-lei;ZHANG Hui;YANG Ai-guo;WANG Hong-chun;XU Peng;WANG Ke(Agricultural Sciences Institute in Jiangsu Lixiahe Area,Yangzhou 225007,China;Jiangsu Agrochem Laboratory Co.,Ltd.,Changzhou 213022,China;Plant Protection and Plant Quarantine Station in Jiangyan District,Taizhou 225500,China;Institute of Plant Protection,Jiangsu Academy of Agricultural Sciences,Nanjing 210014,China)

机构地区：[1]江苏里下河地区农业科学研究所,江苏扬州225007 [2]江苏省农用激素工程技术中心有限公司,江苏常州213022 [3]泰州市姜堰区植保植检站,江苏泰州225500 [4]江苏省农业科学院植物保护研究所,江苏南京210014

出　　处：《杂草学报》2021年第2期58-63,共6页Journal of Weed Science

基　　金：江苏省农业科技自主创新资金[编号:CX(19)3106]。

摘　　要：通过田间小区试验测定1%[口恶]嗪草酮SC与20%氰氟草酯OD混用对水直播稻田杂草的防效及水稻的安全性,旨在为水直播稻田减药控草提供新的产品和技术。结果表明,250、300、350 mL/667 m^(2)1%[口恶]嗪草酮SC与50 mL/667 m^(2)20%氰氟草酯OD桶混播后8 d喷雾处理对粳稻安全,对稗属杂草、千金子、鳢肠、鸭舌草、异型莎草及总草的株防效和鲜重防效均达88%以上,对杂草的防效优于播后15 d处理。可见,播后8 d喷施[口恶]嗪草酮与氰氟草酯混用药剂,能够有效防除水直播稻田多种杂草。To develop new products and technology for reducing herbicide doses and controlling weeds in wet-direct seeded rice,a field experiment was conducted to evaluate the efficacy and crop selectivity oxaziclomefone 1%SC and cyhalofop-butyl 20%OD.Oxaziclomefone 1%SC(250、300、350 mL/667 m^(2))mixed with cyhalofop-butyl 20%OD(100 mL/667 m^(2))applied eight days after seeding provided over 88%control of Echinochloa spp.,Leptochloa chinensis(L.)Nees.,Eclipta prostrate L.,Monochoria vaginalis(Burm.f.)C.Presl.,and Cyperus difformis L.,based on plant density and fresh biomass determinations.All the treatments were also safe for japonica rice.At equal doses,the herbicide mixtures performed better when applied at eight days after wet-direct seeding compared with spraying at 15 days after seeding.

关 键 词：[口恶]嗪草酮 氰氟草酯 防效 安全性 

分 类 号：S451[农业科学—植物保护]