草甘膦防除苗圃杂草效果研究  

Study on Effect of Controlling Weeds with Glyphosate in Nursery

作　　者：陈序宁 

机构地区：[1]乌兰县林业工作站,青海乌兰817100

出　　处：《青海农林科技》2004年第3期40-41,共2页Science and Technology of Qinghai Agriculture and Forestry

摘　　要：试验结果说明,10%草甘膦对苗圃田杂草有良好的防除效果,施用有效剂量1875ml·hm-2对水225kg·hm-2于杂草2—6叶期喷洒,喷头上装只口杯定向杂草茎叶喷施,防效达90%左右,对树苗安全;加助剂科利特或洗衣粉对草甘膦有一定的增效作用,除地上部杂草效果达95%,除赖草地下部根芽效达97%。The test results showed that weeds were controlled well with 10% glyphosate in seedling-raising.The most effective dosage was 1875 ml·ha^(-1),and adding water 225kg·ha^(-1) spraying during 2-6 leaves.Directed spraying was possible if fix a papper cup on sprinkler head.Controlling effect might be reach 90%.It was safe for seedling stock.The controlling effect will be increased if adding cocatalyst,such as Kelite and soap powder in glyphosate.Controlling effect might reach 95% for controlled weeds above ground.Controlling effect under ground part radical buds of Leymus was 97%.

关 键 词：草甘膦 防除效果 苗圃杂草 剂量 增效作用 

分 类 号：S451.24[农业科学—植物保护]