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芝麻苗期杂草种类多、生长快,若遇阴雨连绵、劳力紧张时,部分芝麻地常因草荒而毁种。我场从1980年起,连续5年用拉索进行芝麻地防除杂草试验示范,取得良好效果。1984年示范3,000亩,占种植面积的43.7％。 防除对象 1980—1981年试验,拉索对马唐、早稗、狗尾草、牛筋草等多种一年生单子叶杂草有特效,有效控制期40—50天,对野苋菜、小旋花、辣蓼、小蓟等双子叶杂草无效。
Sesame seedling weeds species, fast growth, in case of rainy, work-intensive, part of the sesame often because of grass shortage and destroyed species. My field since 1980, for five consecutive years with cable to sesame to prevent weeds test demonstration and achieved good results. In 1984 3,000 acres of demonstration, accounting for 43.7% of the area planted. Control object 1980-1981 test, cable on crabgrass, barnyard grass, Setaria viridis, and many other annual monocotyledonous weeds have special effects, the effective control period of 40-50 days, wild amaranth, small flowers, spicy Polygonum, thistle and other dicotyledonous weeds invalid.