【摘要】 [目的]探究施田补在青海西宁地区胡萝卜田的使用效果并筛选最佳使用浓度。[方法]通过小区试验设计研究了不同浓度(500、1 000、1 500、2 000和2 500倍液)施田补对胡萝卜生长的影响及对田间杂草的防治效果。[结果]对胡萝卜田喷洒33%施田补1 500倍液有显著的除草效果,增产效果达25%以上,不同时期的灭草率在92%以上,且使用安全。[结论]施田补可在西宁地区胡萝卜田推广使用。更多还原

【Abstract】 [Objective]The aim was to understand the application effect of Pendimethalin in carrot field of Xining area and screen the optimal dosage.[Method]The control effects of different dosages of Pendimethalin against weeds in carrot field and the effects on growth of carrot were studied through trial test.[Result]It had significant herbicidal effect to spray 1 500 times of 33% Pendimethalin liquid; the yield was increased by more than 25%; the weed-killing rate in different periods was more than 92%,and Pendimethalin was safe to carrot.[Conclusion]Pendimethalin can be used in carrot field of Xining area.更多还原