对草甘膦铵盐、草铵膦和三氟羧草醚钠盐混配对非耕地杂草的联合作用及田间防效研究  

Joint toxicity and field control efficacy of mixtures of glyphosate ammonium,glufosinate-ammonium and acifluorfen sodium against weeds in the non-arable land

作　　者：金立 JIN Li(Anhui Fengle Agrichemical Co.,Ltd.,Hefei 230016,China)

机构地区：[1]安徽丰乐农化有限责任公司,合肥230016

出　　处：《世界农药》2021年第1期50-56,共7页World Pesticide

摘　　要：为了开发出对非耕地恶性杂草防效好的除草剂,针对非耕地恶性杂草牛筋草和小飞蓬的防治,采用室内生物测定方法测定了草甘膦、草铵膦混剂与三氟羧草醚不同配比组合对非耕地杂草牛筋草和小飞蓬的联合毒力作用,并评价了最佳配比组合物的田间防效。试验结果表明,草甘膦铵盐,草铵膦和三氟羧草醚钠盐混配对非耕地杂草的防除效果因混配比例不同而表现出不同的联合作用方式,其中以三者的配比为55∶10∶1时对牛筋草和小飞蓬防除效果的增效作用最为明显,其共毒系数分别为218.5和452.4。田间药效试验结果显示,71%草甘膦铵盐·草铵膦·三氟羧草醚钠盐可溶粉剂在有效成分用量1065~2130 g/hm^2对非耕地杂草的防效较好,防效可达到90%以上。草甘膦铵盐、草铵膦和三氟羧草醚钠盐混配可被进一步开发用于非耕地杂草防除。The joint toxicities and field control efficacy of the mixture of glyphosate ammonium,glufosinate-ammonium and acifluorfen sodium against the weeds Eleusine indica and Conyza canadensis were investigated using the foliar spraying method in order to search good herbicides for control difficult weeds in the non-arable land.The experimental results showed the mixture of glyphosate ammonium,glufosinate-ammonium and acifluorfen sodium at the proportion of 55∶15∶1 had highest activity to Eleusine indica and Conyza canadensis,and their CTC values were 218.5 and 452.4,respectively.The field control efficacy of glyphosate ammonium·glufosinate-ammonium·acifluorfen sodium 71%soluble powder against weeds in the non-arable land were more than 90%at the application dosage of 1065-2130 g/hm^2.The mixture of glyphosate ammonium, glufosinate-ammonium and acifluorfen sodium should be developed further to controlweeds in the non-arable land.

关 键 词：草甘膦铵盐 草铵膦 三氟羧草醚钠盐 非耕地杂草 联合作用 田间防效 

分 类 号：TQ457[化学工程—农药化工]