大棚薄膜的再次利用大连地区塑料大棚面积较大，每年春季利用大棚用过的废旧薄膜，平铺在露地韭菜上面，四周用土压严，薄膜上面每隔一定距离再压些土块，以防被风吹走。这样做法当地称为薄膜平铺韭菜。覆盖后的韭菜田，土地化冻较快，韭根萌发比露地早１０－１５天，与地... Greenhouse film re-use plastic area in Dalian larger area, each spring use of greenhouses used waste film, tiled in the exposed leek above, surrounded by soil pressure Yan, the film at intervals above a certain distance and then press some soil to prevent being The wind blew away. This approach is locally known as film tiling leeks. After covering the leek field, the soil thawing faster, germination of leek roots than the open 10-15 days earlier, and the ground ...