几种除草剂对春麦田禾本科杂草的防除效果  

Efficacies of Different Herbicides on Weeds in Spring Wheat Fields

作　　者：翁华[1] 郭青云[1] 魏有海[1] 郭良芝[1] 程亮[1] 

机构地区：[1]青海省农林科学院植物保护研究所,青海西宁810016

出　　处：《河南农业科学》2011年第4期101-103,共3页Journal of Henan Agricultural Sciences

基　　金：国家"十一五"科技支撑计划项目(2006BAD08A09XX)

摘　　要：野燕麦、旱雀麦是青海春麦田主要的禾本科杂草,发生普遍,危害严重。为控制其危害,对目前开发出来的6种防除麦田禾本科杂草的除草剂进行了田间药效试验,结果表明:50 g/L炔草酸.唑啉草脂EC 600 mL/hm2、150 g/L麦极WP 300 g/hm2、69 g/L骠马EW 750 mL/hm2对野燕麦的防效分别达到98.80%、98.00%、90.00%;7.5%啶磺草胺WG对旱雀麦的株防效和鲜质量防效均达到100%。以上除草剂均对小麦安全,且使小麦增产显著,因此适宜在青海春麦田大面积使用。Bromus tectorum L.and Avena fatua L.are the main weeds in Qinghai spring wheat fields,occurring generally and causing serious damage.In order to control them,6 herbicides developed currently for controlling gramineous weeds of wheat fields were selected in field experiment.The results showed that 600mL/ha of 50g/L Topik-pinoxaden EC,300g/ha of 150g/L Clodinafop-propargyl and 750mL/ha of 69g/L Puma super EW had over 90% efficacy on Avena fatua L.,and 7.5% Pyrosalam＋cloquintocet WG had good effect on the Bromus tectorum L.,with 100% efficacy for plants and fresh quality.These herbicides were safe to wheat and wheat yield was increased significantly,therefore they were appropriate for large use in Qinghai spring wheat fields.

关 键 词：春小麦 杂草 除草剂 药效 安全性 

分 类 号：S451.221[农业科学—植物保护]