洋葱是哈密市主要经济作物之一。但洋葱苗期杂草危害严重,长期以来全靠人工拔除,整个生育期要拔除3次,每亩用工50～60个。1984～1985年我们用氟乐灵、拉索、利谷隆等除草剂进行了防除试验,效果均不理想。1986年用拿捕净、稳杀得、苯达松试验,收到较理想的效果,现简报如下: Onion is one of the major cash crops in Hami. However, weeds at seedling stage of serious harm, long-term rely entirely on human removal, the entire growth period to be removed three times per acre 50 to 60 workers. 1984 to 1985 we used trifluralin, cable, Li Gu Long and other herbicides for control tests, the effect is not satisfactory. In 1986, with the net to be captured, steadied and steadfast, the Bentazon test received more satisfactory results. The briefing is as follows: