38%敌稗·唑酰草胺·异草松乳油对直播水稻田一年生杂草的防治效果  

Control efficacy of propanil·metamifop·clomazone 38%EC against annual weeds in direct-seeding rice fields

作　　者：曹晓晓 CAO Xiaoxiao(Anhui Zhongbang Bio Engineering Co.,Ltd.,Hefei 230088,China)

机构地区：[1]安徽众邦生物工程有限公司,合肥230088

出　　处：《世界农药》2024年第6期43-47,共5页World Pesticide

摘　　要：为明确38%敌稗·唑酰草胺·异草松乳油对直播水稻田一年生杂草的防除效果及其对水稻生长的安全性。参照《农药田间药效试验准则(一)》于2023年在水稻3~4叶期、杂草2~4叶期采用茎叶喷雾法开展大田试验。38%敌稗·唑酰草胺·异草松乳油以有效成分用药量684.0~855.0 g a.i./hm^(2)进行茎叶喷雾,可有效防除稗草、千金子、丁香蓼、异型莎草等一年生杂草,药后40 d株防效89.7%~94.5%,鲜重防效92.4%~96.9%。38%敌稗·唑酰草胺·异草松乳油能够有效防除直播水稻田一年生杂草,且对水稻安全,杀草速度较快。To investigate the control efficacy of propanil·metamifop·clomazone 38%EC on annual weeds in direct-seeding rice fields and the safety on rice growth,a field trial was carried out in 2023 by foliar spray at the 3-4 leaf stage of rice and 2-4 leaf stage of weeds according to the"Pesticide guidelines for the field efficacy trials(I)".The result of field trial showed that propanil·metamifop·clomazone 38%EC could effectively control the annual weeds such as Echinochloa crusgalli(L.)Beauv.,Leptochloa chinensis(L.)Nees.,Ludwigia prostrata Roxb.and Cyperus difformis L.with the effective ingredient amount of 684.0-855.0 g a.i./ha.After 40 days of treatment,the weeds quantity control efficiency was 89.7%-94.5%,and the weeds fresh weight control efficiency was 92.4%-96.9%.Propanil·metamifop·clomazone 38%EC is safe for rice,and can effectively control annual weeds in direct-seeding rice fields,and the control weeding speed is fast.

关 键 词：敌稗 唑酰草胺 异草松 直播水稻田 一年生杂草 安全性 

分 类 号：TQ457[化学工程—农药化工]