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新疆国营农场1979年开始试验塑膜覆盖地面栽培作物,先试用于蔬菜、花生、棉花等。试验表明,采用这一新技术,许多作物尤其是棉花,增产增收的效果十分显著。据石河子市农科所等单位试验,盖膜植棉每亩增产37.4—118.3％,收益增加45—144.5元;1981年,国营农场盖膜植棉的面积扩大到2万亩,平均亩产160斤左右,另有16个试验点也都获得了增产增收的效果。 一、盖膜植棉的增产机理 据观察和分析,盖膜植棉,其主要作用在于为棉花前期生长发育创造了有利的环境
State-owned farms in Xinjiang began experimenting with plastic film covering ground cultivated crops in 1979, and first tried on vegetables, peanuts and cotton. Experiments show that using this new technology, many crops, especially cotton, yield and yield increase effect is very significant. According to Shihezi Agricultural Science and other units test, cover film cotton yield increase of 37.4-118.3% per mu, yield increased 45-144.5 yuan; 1981, state-owned farms covered cotton membrane area expanded to 20000 acres, the average yield 160 Jin or so, and another 16 test points also received the effect of increasing production and income. First, the cover film cotton production mechanism According to observations and analysis, cover film cotton, its main role is to create a favorable environment for the cotton growth and development