为控制棉花生长中期,特别是6-7月份梅雨季节的棉田草害,过去我县许多植棉户有使用灭生性除草剂在棉花行间定向喷雾灭草的习惯。但过去农户使用的灭生性除草剂大多为“草甘膦”及“农达”。为探讨克无踪在棉田定向喷雾除草的可行性,笔者于2000年6月下旬在兵房镇农户棉田进行了“克无踪”及“草甘膦”棉田定向喷雾除草效果及对棉花安全性 To control the cotton growing season, especially during the rainy season in June-July, many cotton-planting households in the past used the habit of using biocidal herbicides to direct-spray weeds between cotton rows. However, in the past, most of the biocidal herbicides used by farmers were “glyphosate” and “Nongda”. In order to explore the feasibility of directional tracking weeding in cotton field, the author carried out directional spraying and herbicidal effect in cotton fields in Junfang Township in late June 2000 and Cotton security