近年来国外先进国家已广泛采用黑色地膜覆盖栽培西瓜,增产效果明显,原因是控制了杂草,提供了合适的土壤温湿度。目前国内普遍采用的是透明的1.5丝的农用地膜栽培,在盖膜下杂草生长繁茂。现在西南地区尚无黑色地膜生产的厂家。为此,我们与成都型料二厂合作研制出三种不同厚度(1丝、1.5丝、3丝)的黑色地膜,与普通1.5丝农用地膜作正规比较试验,试验品种为 In recent years, advanced foreign countries have been widely used black mulching cultivation of watermelon, yield-increasing effect is obvious, because weed control, providing a suitable soil temperature and humidity. Currently widely used in the transparent 1.5-mesh agricultural film cultivation, weeds in the cover film lush growth. Now there is no black film production in Southwest China. To this end, we have developed with the Chengdu plant two plants of different thickness (1 wire, 1.5 wire, 3 wire) of black film, and 1.5 ordinary agricultural silk film for the regular comparison test, the test varieties