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上海地区茄果类、甘蓝类蔬菜早春育苗,从搭秧到定植这一段育苗时间约60～110天。据观察,搭秧后15天,杂草少量发生,35天轻度危害,60天严重危害。按苗床管理要求,一般在搭秧后3O天内需拔草1次,以后再拔草1～2次,签于菜区劳力不足,苗床场地狭小,操作困难,希望有一种苗用的除草剂。我们在试验中,发现大惠利(敌草胺)有较好的安全性和防除效果,并已在本地推广使用。一、试验方法药剂:20％敌草胺乳剂,如东农药厂产品,每
Shanghai eggplant, cabbage vegetables nursery early spring, from planting seedlings to colonization this period of about 60 to 110 days nursery. It is observed that 15 days after planting, a small amount of weeds occur, 35 days mild harm, 60 days serious harm. According to the management requirements of the seedbed, it is necessary to pull the grass once within 30 days after the seedling is laid, and then pull the grass 1-2 times in the future. Signing labor shortage in the vegetable area, the seedbed is small and the operation is difficult. Hopefully, there is a herbicide for seedling use. In our experiments, we found that Divertivan (Diclofenac) has good safety and control effects and has been widely used locally. First, the test methods Pharmacy: 20% riodemram emulsion, such as East Pesticide Factory products, each