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田间药效试验结果表明,丁草胺·异噁草松48%可湿性粉剂在棉花播后苗前喷雾施药,防除棉田多种一年生杂草除草效果好,杀草谱广,持效期长。药后50d,总株防效均在90%以上,鲜重防效均在95%以上。432~720g/hm2对棉花安全,1152ga.i./hm2处理棉苗有一定的抑制生长现象,但可恢复,对产量基本无影响。适宜推荐剂量为432~576ga.i./hm2。
The results of field trials showed that 48% of butachlor and clovesulfuron-methyl WP could be sprayed before spraying in order to control weeds in a variety of annual weeds in broad-leaved cotton fields . After 50 d, the control efficacy of the whole plant was more than 90%, the fresh weight and anti-efficacy were above 95%. 432 ~ 720g / hm2 cotton security, 1152ga.i. / Hm2 cotton seedlings have a certain inhibition of growth, but can be restored, the output basically no effect. Appropriate recommended dose of 432 ~ 576ga.i. / Hm2.