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地膜覆盖裁培是我国农田耕作制度上的一项新的突破。它具有提高地温(北方地区春季可使耕作层温度提高2～4℃)、保墒(土壤水份可增加10～20%)、保持土壤疏松、改善土壤结构、提高土壤肥力等优点。在南方雨水多的地区还有防雨涝和减少养分流失的作用。在盐碱地还可防止返碱。因此,这是一项增产、增收行之有效的技术措施。本文就目前我国地膜覆盖技术及其机械化发展情况作一概述。
Film mulching cultivation is a new breakthrough in farming system in our country. It has the advantages of increasing ground temperature (increasing the temperature of cultivated layer in spring by 2 ~ 4 ℃ in spring in northern area), preserving soil moisture (increasing 10 ~ 20% of soil moisture), keeping soil loose, improving soil structure and improving soil fertility. There is also the role of preventing waterlogging and reducing nutrient loss in the rainy areas of the South. In saline can prevent back to alkali. Therefore, this is an effective measure to increase production and increase revenue. This paper gives an overview of the current development of plastic film mulching in China and its mechanization.