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采用0.015—0.02毫米的聚乙烯农膜进行地面复盖栽培(以下简称地膜复盖)是六十年代发展起来的一项新的农业栽培技术。日本是这项栽培技术研究与应用最早的国家,复盖面积居世界第一位,达15.8万公顷。应用复盖栽培的主要作物:蔬菜9.4万公顷,烟草5.1万公顷,花生1.2万公顷(1975年统计资料)。地膜复盖做为国外一项先进农业技术,从1979年春季开始在我国东北、华北、西北地区的农业生产上进行有计划的试验引进工作。一年米,通过在蔬菜、花生、水稻、棉花等近20种作物,600多亩试验田上的试验结果看出,地膜复盖栽培投资低,见效快,具有省肥、省工、节水、防病等多种经济效益。
The use of 0.015-0.02 mm polyethylene plastic film for ground cover cultivation (hereinafter referred to as plastic film cover) was developed in the 1960s as a new agricultural cultivation technique. Japan is the earliest country in terms of research and application of cultivation techniques, covering an area of 158,000 hectares in the world. The main crops to be covered are: 94,000 hectares of vegetables, 51,000 hectares of tobacco and 12,000 hectares of peanuts (Statistics for 1975). Film mulching as an advanced agricultural technology abroad, from the spring of 1979 began in northeast China, north China and northwestern areas of agricultural production conducted a planned introduction of the trial. One year of rice, through the test results of nearly 20 kinds of crops such as vegetables, peanuts, rice, cotton and 600 mu of experimental field, the investment in plastic film mulching has low investment and quick effect, and has the advantages of saving fertilizer, saving labor, saving water, Prevention and other economic benefits.