Cornstar 35WG防除夏玉米田杂草的药效与安全性研究  

Efficacy and Safety of Cornstar 35WG on Controlling Weeds in Maize Field

作　　者：李国生 袁树忠[2] 范文文[2] 马文伟[2] 何平平[2] 

机构地区：[1]扬州大学实验农牧场,江苏扬州225009 [2]扬州大学农学院植物保护系,江苏扬州225009

出　　处：《安徽农业科学》2005年第12期2271-2273,共3页Journal of Anhui Agricultural Sciences

摘　　要：2003～2004年对Cornstar 35WG加助剂Biopower防除玉米田一年生杂草进行了田间研究,结果表明,Cornstar 35WG主要以杂草叶片吸收并在体内进行传导,根系也能吸收传导,对优势杂草马唐等一年生杂草防效优异,105～135 g/hm2对一年生禾本科杂草的株防效和鲜重防效均在95%以上,对总草的株防效和鲜重防效也在90%以上,所有用量下玉米生长无异常,说明Cornstar对玉米是安全的。因此认为Cornstar35WG在玉米5～6叶,杂草3～5叶时用Cornstar35WG105～120g/hm2(ai.36.75～42g/hm2)+Biopower900ml/hm2,对水450～600 kg/hm2进行茎叶喷雾处理,可有效地防除玉米田一年生杂草。The efficacy and the safety of Cornstar （ foramsulfuron ） 35WG mixed with an adjuvant, Biopower on annual weeds were investigated in maize field in 2003-2004. The results indicated that Cornstar 35WG was absorbed by weed leaf and root and translated in weeds. The efficacy was the most excellent against Digitaria sanguinalis （ L. ） Scop. in maize field. The efficacies against annual grass weeds were more than 95% and against all of annual weeds were more than 90% respectively at 105-135 g/hm^-2. Comstar was safe to maize seedling at 105-135 g/hm^2. Therefore, the annual weeds could be effectively controlled with Cornstar 35WG 105-120 g/hm^2 （ai.36.75-42 g/hm^2） mixed with Biopower 900 ml/hm^-2 in tank according to 450-600 kg/hm^-2 water- diluted for spraying on maize 5-6 leaf- old seedling and weed less than 3-5 leaf- old.

关 键 词：Cornstar(甲酰氨磺隆) Biopower助剂 夏玉米 除草 安全性 

分 类 号：S451.222[农业科学—植物保护]