38%敌稗·(噁)唑酰草胺·异(噁)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
曹晓晓1
作者信息
- 1. 安徽众邦生物工程有限公司,合肥 230088
- 折叠
摘要
为明确 38%敌稗·(噁)唑酰草胺·异(噁)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·(噁)唑酰草胺·异(噁)草松乳油以有效成分用药量684.0～855.0 g a.i./hm2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 40d株防效89.7%～94.5%,鲜重防效 92.4%～96.9%.38%敌稗·(噁)唑酰草胺·异(噁)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.
Abstract
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/(噁)唑酰草胺/异(噁)草松/直播水稻田/一年生杂草/安全性Key words
propanil/metamifop/clomazone/direct-seeding rice fields/annual weeds/safety引用本文复制引用
出版年
2024
NETL
NSTL
万方数据