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冬种油菜面积大,化学除草是农民最关心的问题。因为推广化学除草对有效控制油菜田杂草,减轻农民劳动强度,夺取丰收有着十分重要的意义。从近年情况看,不同耕作制度和不同前茬,形成不同的杂草群落,而针对不同杂草群落选择和应用好油菜田除草剂,是提高防效,降低成本的关键。乙草胺油菜直播田在播种后出苗前,移栽田在移栽前或移栽后1-3天,每亩用50%乙草胺乳油50—75毫升,对水50公斤进行土壤处理,对杀灭看麦娘等禾本科杂草和沙草科杂草效果较好。
Winter rapeseed area, chemical weeding is the most concerned about the issue of farmers. Because of the promotion of chemical weed control rape field weed control effectively reduce the labor intensity of farmers, to seize the harvest is of great significance. In recent years, different farming systems and different previous croplands formed different weed communities. Selecting and applying different weed herbicides to different weed communities was the key to improving control efficiency and reducing costs. Acetochlor rapeseed field before sowing after emergence, transplanting field 1-3 days before transplanting or transplanting, 50-75 ml with 50% acetochlor EC per acre, 50 kg of water for soil treatment, On the kill to see Ophiopogon grass weeds and grass weeds better.