47%2甲·草甘膦水剂对桃园4种杂草的防效  

Control Effect of 47%MCPA·Glyphosate AS against Four Kinds of Weeds in Peach Garden

作　　者：兰亦全[1] 余世明 LAN Yi-quan(College of Plant Protection,Fujian Agriculture and Forestry University,Fuzhou,Fujian 350002)

机构地区：[1]福建农林大学植物保护学院,福建福州350002

出　　处：《农业灾害研究》2020年第4期12-14,共3页Journal of Agricultural Catastrophology

基　　金：福建农林大学科技创新专项基金(CXZX2017213)。

摘　　要：为明确47%2甲·草甘膦水剂对桃园杂草的防效,采用茎叶喷雾法进行田间药效试验。结果表明,47%2甲·草甘膦水剂对桃园火炭母、少花龙葵、野茼蒿和小飞蓬4种主要杂草均具有良好的防效和持效性,3750~5250 mL/hm^2处理药后15 d防效达78.75%~91.36%,药后30 d防效均在90%以上。47%2甲·草甘膦水剂4500 mL/hm^2和5250 mL/hm^2处理的防效,显著高于对照药剂30%草甘膦铵盐水剂和13%2甲4氯钠水剂5250 mL/hm^2处理的防效。The field efficacy trials were carried out by the foliage spraying method to determine the control effect of 47%MCPA·glyphosate AS against the weeds in peach garden.The results showed that the 47%MCPA·glyphosate AS had a good and continuous control effect against the four kinds of peach garden weeds(Polygonum chinense,Solanum photeinocarpum,Crassocephalum crepidioides and Conyza Canadensis).At the dosage of 3750—5250 ml/hm^2,the control effect of 47%MCPA·glyphosate AS was 78.75%to 91.36%on the 15th day and above 90%on the 30th day after application,respectively.The control effect of 47%MCPA·glyphosate AS at the dosage of 4500 and 5250 ml/hm^2 was significantly higher than that of 30%glyphosate—ammonium salt、13%MCPA—sodium AS at the dosage of 5250 ml/hm^2.

关 键 词：桃园 杂草 2甲·草甘膦 防效 

分 类 号：S451.2[农业科学—植物保护]