菜田地膜“一膜多用”技术,即采用多种形式,多次使用地膜的措施,这是地膜覆盖技术的新发展。使地膜不仅“铺地”,而且“盖天”。一块地膜用于几茬菜,做到茬茬可用,全年可用。从而更加发挥了地膜的增产、增值,调节淡季的作用,并且降低了生产成本。天津市菜区“一膜多用”面积已达6万亩,占全部地膜面积的60%。 Vegetable field film “a multi-purpose membrane” technology, that is, using a variety of forms, multiple use of plastic film measures, which is the new development of plastic film covering technology. Make the film not only “shop floor”, but also “cover the sky.” A piece of film for a few stubble vegetables, stubble available, available throughout the year. Thus giving more play to the film production, value-added, regulate the role of off-season, and reduce production costs. Tianjin vegetable area “a multi-purpose membrane” area has reached 6 million mu, accounting for 60% of all membrane area.