除草剂土壤处理防除移栽棉田杂草研究  

Study on Controlling Weeds of Transplant Cotton Fields Using Soil Treatment Herbicides

作　　者：褚世海[1] 常向前[1] 李儒海[1] 朱文达[1] 

机构地区：[1]湖北省农业科学院植保土肥研究所,武汉430064

出　　处：《湖北农业科学》2009年第7期1661-1664,共4页Hubei Agricultural Sciences

基　　金：湖北省农业科技创新中心资助项目(2007-620-003-03-04)

摘　　要：对48%氟乐灵EC、90%乙草胺EC、96%精异丙甲草胺EC、50%乙·异恶草松EC、45%乙·异恶草松EC 5种除草剂以土壤处理方式防除移栽棉田杂草的效果进行了研究。结果表明,这5种除草剂均对棉田杂草有较好的防除效果,药后20 d对杂草的总防效为96.58%～100.00%,药后45 d的总鲜重防效为89.76%～99.92%,药后60 d仍对大多数田间杂草有较好的防效。试验发现乙草胺、精异丙甲草胺为较高剂量时对棉花生长有一定的抑制作用。The soil treatment efficacies of 5 herbicides such as 48% trifluralin EC,90% acetochlor EC,96% s-metolachlor, 50% acetochlor-clomazone and 45% acetochlor-clomazone on weeds of transplant cotton fields were studied. The results showed that,all the 5 herbicides have good efficacy on the weeds. The 20th day and 45th day efficacies were 96.58%N 100.00%,89.76%-99.92%, respectively. After 60 days,the herbicides were still effective on most of weeds. The results also showed that acetochlor and s-metolachlor restrained the growth of cotton on the high dosage.

关 键 词：除草剂 土壤处理 移栽棉 杂草 效果 

分 类 号：S482.4[农业科学—农药学]