4种除草剂土壤封闭处理对稻茬紫云英的安全性及对阔叶杂草的防除效果  

Study on the Safety of Soil Closure Treatment with Four Herbicides on Astragalus sinicus after Rice and Its Control Effect on Broad-leaved Weeds

作　　者：孙振宇[1] 谢晓丽 郭建国[1] 汪玮 胡超 金社林[1] SUN Zhenyu;XIE Xiaoli;GUO Jianguo;WANG Wei;HU Chao;JIN Shelin(Institute of Plant Protection,Gansu Academy of Agricultural Sciences,Lanzhou Gansu 730070,China;Wuhu Qingyijiang Seed Industry Co.,Ltd.,Wuhu Anhui 241000,China)

机构地区：[1]甘肃省农业科学院植物保护研究所,甘肃兰州730070 [2]芜湖青弋江种业有限公司,安徽芜湖241000

出　　处：《寒旱农业科学》2024年第12期1173-1176,共4页Journal of Cold-Arid Agricultural Sciences

基　　金：现代农业产业技术体系建设专项(CARS-22)。

摘　　要：为筛选用于稻茬紫云英繁殖田阔叶杂草防控的土壤处理用除草剂,选取80%唑嘧磺草胺水分散粒剂、960g/L精异丙甲草胺乳油、33%精异丙甲草胺·丙炔氟草胺微囊悬浮剂、330g/L二甲戊灵乳油4种除草剂,在紫云英播后苗前进行土壤喷雾处理,评价其对紫云英的安全性及对阔叶杂草的防控效果。结果表明,紫云英播后第2天,使用80%唑嘧磺草胺水分散粒剂或330g/L二甲戊灵乳油进行土壤封闭处理对紫云英较安全,且对田间阔叶杂草的防控效果较好,株防效分别为75.26%、82.74%,鲜重防效分别为46.09%、61.09%。In order to screen the herbicides used in soil treatment to control broad-leaved weeds in the breeding field of Astragalus sinicus after rice,4 herbicides including 80%flumetsulam water dispersion granules,960 g/L S-metolachlor emulsifiable concentrate,33%S-metolachlor·flumioxazin microcapsule suspension and 330 g/L pendimethalin emulsifiable concentrate were selected and soil spray treatments were applied before seedling emergence of Astragalus sinicus,and their safety and control effect on broad-leaved weeds were evaluated.Results showed that soil spray on the second day after sowing Astragalus sinicus,80%flumetsulam water dispersing granules and 330 g/L pendimethalin emulsifiable concentrate were safe for Astragalus sinicus and had the best control effect on broad-leaved weeds in the field,plant control efficiency were 75.26%,82.74%,respectively,whereas fresh weight control efficiency were 46.09%,61.09%,respectively.

关 键 词：除草剂 土壤封闭 紫云英 阔叶杂草 

分 类 号：S451.2[农业科学—植物保护]