农户要增加地膜的使用次数,降低生产成本,提高经济效益,可以采用一膜多用技术。一、一次覆盖,多茬连种春季作物用地膜覆盖后,夏收时要保持地膜完整,秋季继续使用,或者秋季覆盖,冬作再用。后茬作物播种时,必须先将地 Farmers to increase the frequency of use of plastic film, reduce production costs and improve economic efficiency, you can use a multi-film technology. First, a coverage, and more stubble with spring crops covered with plastic film, the summer harvest time to maintain the integrity of the film, continue to use the fall, or autumn cover, winter re-use. After sowing crops, we must first land