6%双氟磺草胺·唑嘧磺草胺SC防除春小麦田阔叶杂草药效试验  

Study on the Control of Broad-Leaved Weeds in Spring Wheat Field by 6%Florasulam·Flumetsulam SC

作　　者：翁华[1] WENG Hua(Academy of Agriculture and Forestry Sciences,Qinghai University/Scientific Observing and Experimental Station of Crop Pest in Xining,Ministry of Agriculture and Rural Affairs/Key Laboratory of Agricultural Integrated Pest Management in Qinghai Province,Xining 810016,China)

机构地区：[1]青海大学农林科学院/农业农村部西宁作物有害生物科学观测实验站/青海省农业有害生物综合治理重点实验室,青海西宁810016

出　　处：《黑龙江农业科学》2023年第9期39-44,共6页Heilongjiang Agricultural Sciences

基　　金：国家科技基础资源调查(2022FY101600);青海省科技项目(2023-NK-P38)。

摘　　要：为明确新型除草剂6%双氟磺草胺·唑嘧磺草胺SC对春小麦田杂草防治效果、最佳用量和对春小麦的安全性,采用田间随机区组试验设计,在春小麦3~5叶期进行茎叶喷雾处理,通过两年药效试验,调查杂草防除效果及春小麦安全性。结果表明,推荐剂量6%双氟磺草胺·唑嘧磺草胺SC有效成分用量10.35~12.60 g·hm^(-2),药后40 d对密花香薷、黎、野油菜防效达80%以上,后期目测防效81.33%~89.32%,并对小麦具有较好的安全性,增产率为10%以上。In order to clarify the weed control effect,the optimum dosage and the safety to spring wheat of the new herbicide 6%florasulam·flumetsulam SC in spring wheat field,the field design was used to spray the stems and leaves at the 3-5 leaf stage through a random block experiment in sprng wheat.The weed control effect and the safety of spring wheat were investigated through two years of efficacy test.According to the recommended dosage 10.35-12.60 g·ha^(-1).The control effect was more than 80%after 40 days of metamifop SC on Elsholtzia densa,Brassica campestris and Oenthera bieenis,and the visual control effect was 81.33%-89.32%in the later stage.It had good safety to wheat,and the yield increase rate was more than 10%.

关 键 词：6%双氟磺草胺·唑嘧磺草胺SC 除草效果 春小麦 安全性 

分 类 号：S451.221[农业科学—植物保护]