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洋葱是哈密地区天山以南农区的主要经济作物.但这里洋葱苗期草害十分严重,靠人工拔草,费工费时.1984—1985年,我们用氟乐灵、拉索、利谷隆等除草剂防除洋葱田杂草,效果均不佳;1986年改用拿捕净、稳杀得、苯达松,获得了较为良好的防除效果.试验在哈密市大南湖乡进行.试验设亩喷稳杀得60,80,100毫升,稳杀得80毫升+苯达松120毫升,拿捕净机油100毫升,拿捕净乳油100,120毫升,拿捕净乳油100毫升+苯达松120毫升,以喷清水为对照.处理小区面积33.3米~2,随机排列,重复3次,供试品种为当地白皮洋葱.喷药前灌水一次,5月16日亩喷药液30公斤.试验结果表明,喷药15天后,各药对稗
Onion is the major cash crop in the agricultural area south of the Tianshan Mountains in Hami area, but the grasses are very serious at the seedling stage and rely on manual weeding, which takes time and labor. 1984-1985, we used trifluralin, And other herbicides to control weeds in onion fields, the effect is not good; in 1986 switched to take a net, steady kill was, bentazone, obtained a better control effect .Test in Dali Nanhu Township in Hami City. Steady kill was 60,80,100 ml, stable kill 80 ml + 120ml bentazon, take a net oil 100 ml, take a net EC 100,120 ml, take a net EC 100 ml + bentazon 120 ml spray water as a control. Treatment area of 33.3 m ~ 2, random arrangement, repeated 3 times, the test varieties for the local white onions .Push the irrigation once, on May 16 mu spraying liquid 30 kg.The results showed that after spraying for 15 days, Various drugs on barnyardgrass