由于地膜覆盖栽培的诸多优越性，世界上许多国家在农业生产上应用此项技术，取得显著效果。在现代农业的发展中，塑料产品正起着越来越重要的作用。日本是世界上研究应用地腹覆盖载培最早的国家之一，始于50年代初，我国石油化学工业起步较晚，1978年才自日本正式引进我国，由 Due to the many advantages of plastic film mulching cultivation, many countries in the world have applied this technology to agricultural production and achieved remarkable results. In the development of modern agriculture, plastic products are playing an increasingly important role. Japan was one of the earliest countries in the world to study and apply the belly-covered cultivation. Since the early 1950s, China’s petrochemical industry started relatively late, and was formally introduced into Japan from Japan in 1978. From