氯氟吡啶酯等药剂对直播稻田杂草的防除效果  

Effect of Florpyrauxifen-benzyl and its Mixtures against Weeds in Direct-seeded Rice

作　　者：孙进军 唐涛 曹杨 李冠华[1] 李有志[1] 姚振威[4] SUN Jin-jun;TANG Tao;CAO Yang;LI Guan-hua;LI You-zhi;YAO Zhen-wei(College of Plant Protection,Hunan Agricultural University,Changsha 410128,PRC;Hunan Plant Protection Institute,Changsha 410125,PRC;Termites Control Station of Changsha,Changsha 410005,PRC;Zhongkai University of Agriculture and Engineering,Guangzhou 510225,PRC)

机构地区：[1]湖南农业大学植物保护学院,湖南长沙410128 [2]湖南省植物保护研究所,湖南长沙410125 [3]长沙市白蚁防治站,湖南长沙410005 [4]仲恺农业工程学院,广东广州510225

出　　处：《湖南农业科学》2018年第8期56-60,共5页Hunan Agricultural Sciences

基　　金：长沙市科技局重点项目(kc1701003)

摘　　要：为了明确氯氟吡啶酯及其复配剂对直播稻田杂草的防效和对水稻的安全性,于2016年以H优518为供试水稻品种开展晚稻直播田杂草防除试验。结果表明:播后13 d喷施25 g/L氯氟吡啶酯乳油30~37.5 g/hm^2能有效防除稗草、鸭舌草、陌上菜和异型莎草;喷施32.5 g/L氯氟吡啶酯·五氟磺草胺油悬浮剂48.75~58.5 g/hm^2能有效防除稗草、鸭舌草、陌上菜、异型莎草和牛毛毡;喷施120 g/L氯氟吡啶酯·氰氟草酯乳油144~216 g/hm^2能有效防除稗草、鸭舌草、陌上菜、异型莎草和千金子。常用药剂25 g/L五氟磺草胺油悬浮剂37.5 g/hm^2能有效防除稗草、鸭舌草、陌上菜、异型莎草和牛毛毡;10%噁唑酰草胺乳油与10%氰氟草酯乳油混用150+150 g/hm^2可有效防除稗草和千金子;10%吡嘧磺隆可湿性粉剂与10%双草醚悬浮剂混用45+45 g/hm^2可有效防除稗草、鸭舌草、陌上菜、异型莎草和牛毛毡。各药剂均对水稻安全。Taking H-you 518 as the tested rice variety, field trials were conducted to evaluate the crop selectivity and weed control effect provided by florpyrauxifen-benzyl（Rinskor？ active） and its premixes in late season direct-seeded rice in 2016. The results showed that applied at 13 days after sowing, Rinskor 25 EC at 30-37.5 g/hm^2 achieved nearly perfect control on Echinochloa crus-galli, Monochoria vaginalis, Lindernia procumbens and Cyperus difformis, whereas it＇s premix with penoxsulam 32.5 OD formulation at 48.75-58.5 g/hm^2 provided effective control on E. crus-galli, M. vaginalis, L. procumbens, C. difformis and H. yokoscensis, and the premix with cyhalofopbutyl 120 EC formulation at 144-216 g/hm^2 gave perfect control on Echinochloa crus-galli, L. chinensis, M. vaginalis, L. Procumbens and C. difformis. The commonly used herbicide 25 g/L penoxsulam OD（Fencer？） at 37.5 g/hm^2 provided perfect control on Echinochloa crus-galli, M. vaginalis, L. procumbens, C. difformis and H. yokoscensis; the tank-mix of 10% metamifop EC with 10% cyhalofop-butyl EC at 150＋150 g/hm^2 achieved excellent control on the mentioned grasses but failed on other weeds; the tank-mix of 10% pyrazosulfuronethyl WP and 10% bispyribac-sodium SC at 45＋45 g/hm^2 gave perfect control on Echinochloa crus-galli, M. vaginalis, L. procumbens, C. difformis and H. yokoscensis. All treatments showed no negative impact on rice.

关 键 词：直播水稻田 杂草 氯氟吡啶酯 五氟磺草胺 氰氟草酯 相对防效 安全性 

分 类 号：S451.21[农业科学—植物保护]