大棚西瓜栽培是近年来兴起的一项新技术,它能够提高棚内空间和地膜下土壤的温度,使西瓜提早上市,但大棚内土壤覆盖地膜后,杂草发生危害严重,和西瓜争光、争肥和争水,致使西瓜生长不良,造成减产,严重时农民不得不提早揭膜除草,既费工费力,又降低了地膜覆盖的作用。近年来,我们对大棚西瓜田杂草的化学防除进行了研究,筛选出了对西瓜安全性好的除草剂品种——72％杜尔 Cultivation of watermelon in greenhouse is a new technology emerging in recent years, it can raise the greenhouse temperature and space under the greenhouse, so that watermelon early market, but the greenhouse cover plastic film, weeds serious harm, and watermelon glory, fight Fertilizer and water dispute, resulting in poor growth of watermelon, resulting in reduced production, serious peasants had to expose and weeding early, both laborious effort, but also reduces the role of plastic film coverage. In recent years, we conducted a study on the chemical control of weeds in greenhouse watermelon fields, screened out a variety of herbicides that are safe for watermelon --72% Dul