84%双氯磺草胺水分散粒剂对夏大豆田杂草的防效及安全性评价  

Control Effect of Diclosulam 84%WDG on Weeds and Its Selectivity Evaluation in Summer Soybean Fields

作　　者：李国瑜[1] 丛新军 颜丽美 李亮 孟宪岳 LI Guo-yu;CONG Xin-jun;YAN Li-mei;LI Liang;MENG Xian-yue(Tai'an Academy of Agricultural Sciences,Tai'an 271000,China;Dongping Bureau of Agriculture and Rural,Dongping 271500,China;Agricultural Comprehensive Service Center of Anzhan Town,Feicheng Country,Shandong Province,Feicheng 271603,China)

机构地区：[1]山东省泰安市农业科学研究院,山东泰安271000 [2]山东省东平县农业农村局,山东东平271500 [3]山东省肥城市安站镇农业综合服务中心,山东肥城271603

出　　处：《杂草学报》2021年第4期73-77,共5页Journal of Weed Science

基　　金：山东省现代农业产业技术体系杂粮创新团队专项(编号:SDAIT-15-09);泰安市科技发展计划(编号:2018NS0086)。

摘　　要：为进一步验证分析84%双氯磺草胺水分散粒剂的药效,开展了对夏大豆田1年生禾本科杂草和阔叶杂草的防除效果及安全性评价研究。结果表明,大豆播后苗前喷施有效成分为35 g a.i./hm^(2)的84%双氯磺草胺水分散粒剂7 d后,田间杂草即出现萎蔫、枯亡等现象;30 d后,对常见阔叶杂草的总防效为100%,对禾本科杂草的鲜重防效均高于90%,而株防效分别为96.30%(牛筋草)、94.16%(马唐)、85.53%(狗尾草)、84.62%(小麦自生苗)、80.95%(稗);84%双氯磺草胺水分散粒剂对大豆的生长发育无不良影响,田间产量为4942.0 kg/hm^(2),较空白清水对照、480 g/L广灭灵乳油处理增产43.58%、12.37%,具有较好的推广应用前景。To further verify the efficacy of diclosulam 84%WDG,we studied the control effect on annual grass weeds and broadleaf weeds and its selectivity evaluation in summer soybean fields.When diclosulam 84%WDG(35 g a.i./hm^(2))was sprayed at pre-emergence stage,the weeds were wilted or died 7 days later.After 30 days,the total control effect rate on common broadleaf weeds was 100%,and the control effect rate of fresh weight on grass weeds was higher than 90%,while the control effect rates of plant on Eleusine indica,Digitaria sanguinalis,Setaria viridis,Triticum aestivum and Echinochloa crusgalli were 96.30%,94.16%,85.53%,84.62%and 80.95%,respectively.It has no adverse effect on the growth and development of soybean sprayed diclosulam 84%WDG.The soybean yield of diclosulam 84%WDG treatment was 4942.0 kg/hm 2,which was 43.58%higher than that of water treatment,and 12.37%higher than that of clomazone 480 g/L EC treatment.Diclosulam 84%WDG has good prospect of popularization and application prospects.

关 键 词：大豆 双氯磺草胺 杂草 防效 安全性 产量 

分 类 号：S365[农业科学—作物栽培与耕作技术]