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根据日本农林省1975年统计,日本的薄膜地面复盖栽培面积是158,449公顷。复盖面积最大的作物是蔬菜,占93,891公顷,即相当于日本全部菜田面积的17.2%;其中温室的63.8%,小拱棚的76.2%都用薄膜地面复盖;此外,烟草的80%,花生的31.7%,旱稻的52%也都利用了地面复盖。薄膜地面复盖属于投资低、见效快、技术简单、容易推广的一种保护地栽培。日本复盖栽培研究会事务局长石本正一先生认为:农业薄膜的利用应该先从地面复盖开始,然后再发展到小棚和大棚。小棚和大棚的主要效果是用来提高气温,而地面复
According to the Japanese Ministry of Agriculture and Forestry in 1975, Japan’s film-covered area covers an area of 158,449 hectares. The largest covered area is vegetables, accounting for 93,891 hectares, which is equivalent to 17.2% of the total area of Japanese vegetable fields. Among them, 63.8% of the greenhouses and 76.2% of the small archways are covered with film ground. In addition, 80% 31.7% of peanuts and 52% of Upland also utilized ground cover. Film covering the ground is low investment, quick, simple, easy to promote a conservation culture. Shimizu Masayuki, director of the Japan Overgrown Research Institute, believes that the use of agricultural films should first be covered from the ground and then to small sheds and greenhouses. The main effect of the shed and shed is used to raise the temperature, while the ground complex