农药科学与管理2025，Vol.46Issue(4)：49-55,7.
33%特丁津·异噁唑草酮悬浮剂防治玉米田一年生杂草效果与安全性
Evaluation of the Control Efficacy and Safety of Terbuthylazine·Isoxaflutole 33%SC against Annual Weeds in Corn Field
摘要
Abstract
In order to determine the efficacy and crop safety of 33%terbuthylazine·isoxaflutole suspension concentrate(SC)applied in early post-emergence(POST)for controlling annual weeds in corn field,field trialswere conducted using random block design method.The results showed that POST application of terbuthylazine·isoxaflutole 33%SC at 3-leaf stage of both corn and weed effectively controlledkey annual weed species such as Digitaria sanguinalis,Eleusine indica,and Amaranthus retroflexus.At the application rates of 594,742.5,891 and 1485 g active ingredient(a.i.)/hm2,overall control efficacy at 14 days after treatmentwas 85.7%,90.4%,95.3%and 100%,respectively.At 28 days after treatment,efficacy was 83.5%,88.8%,92.7%and 98.0%,respectively.Fresh weight control efficacy was 85.2%,89.6%,94.5%and 98.6%,respectively.The herbicide showed good crop safety for the tested corn variety"Denghai 605".Therefore,terbuthylazine·isoxaflutole 33%SC is one of promising candidate herbicides for early POST control of annual weeds in corn field,with a recommended application rates of 742.5～891 g a.i./hm2.关键词
特丁津·异噁唑草酮/早期茎叶喷雾/玉米/安全性/株防效/鲜重防效Key words
terbuthylazine·isoxaflutole/early post-emergence application/corn/safety/plant control efficacy/fresh weight control efficacy分类
农业科技引用本文复制引用
王恒智,路兴涛,彭学岗,李美,高传杰,刘学,黄修柱,张佳,袁善奎,张耀中,刘伟堂,王金信,张国福,连磊..33%特丁津·异噁唑草酮悬浮剂防治玉米田一年生杂草效果与安全性[J].农药科学与管理,2025,46(4):49-55,7.基金项目
国家重点研发计划(2023YFD1400500) （2023YFD1400500）
