西瓜地膜覆盖栽培一般增产40—50％,且能早熟,提前上市,每亩产值为露地西瓜的两倍以上。因此,覆盖面积迅速扩大,覆盖技术不断创新。这里介绍的是一般西瓜覆膜栽培技术。一、覆盖的几种方式 1.地膜覆盖:一般采用幅宽70—80厘米、厚0.015—0.02毫米的透明地膜进行平 Watermelon mulching cultivation generally increase production 40-50%, and can be premature, early market, the output value per acre more than double exposed watermelon. As a result, the area of ​​coverage has rapidly expanded and the coverage technology has been continuously innovated. Introduced here is the general watermelon film cultivation techniques. First, covering several ways 1. Mulch: General width 70-80 cm, 0.015-0.02 mm thick transparent film to be flat