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地膜覆盖栽培是近几年发展起来的一项农业生产新技术,是传统农业与现代农业技术相结合的一种新的栽培技术体系。我国自1979年开始此项技术小面积试验,1980年,试验、示范面积发展到2.5万亩,到1982年,地膜覆盖栽培面积猛增到177万亩,为1980年的70.8倍。1986年,仅山西省地膜覆盖栽培面积就达180多万亩,全国共发展到2700多万亩,在不同地区多种作物上充分显示了这一新技术的增产增收效益。 贵州从1980年开始试验、示范和推广地膜覆盖栽培技术,1982年覆盖栽培面积为370亩,1984年发展到3.45万亩,其中以水稻地膜育秧面积最大,占总面积的63％,到1986年,贵州发展速度最快、面积最大的水稻地膜育秧也仅25万亩,在玉米等旱地作物上的应用还处于小面积试验、示范阶段。与先进省区相比,贵州的发展速度是很缓
Mulch-covering cultivation is a new agricultural production technology developed in recent years and is a new cultivation technology system combining traditional agriculture and modern agricultural technology. Since 1979, China began to test this technology for a small area. In 1980, the area of experiments and demonstrations was expanded to 25,000 mu. By 1982, the area covered by mulching film soared to 177 million mu, 70.8 times that of 1980. In 1986, only Shanxi Province mulched film cultivation area reached more than 180 million mu, the country a total of more than 2700 acres, a variety of crops in different regions fully demonstrated the new technology of increasing yield and increasing benefits. Guizhou started experimenting with, demonstrating and popularizing the technology of plastic film mulching cultivation in 1980, covering 370 mu of cultivated area in 1982 and 34,500 mu in 1984, of which rice mulching has the largest area accounting for 63% of the total area and up to 1986 Guizhou has the fastest growing area and the largest paddy rice seedling cultivation is only 250,000 mu. The application on dryland crops such as corn is still in the small-area test and demonstration stage. Compared with advanced provinces and autonomous regions, Guizhou’s growth rate is very slow