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国家科委于1990年4月在山东烟台市召开了“全国果树穴肥水覆膜、覆草现场会”并决定从1990年开始将果树穴肥水地膜覆盖增产新技术列入国家重点科技成果推广计划,要求各地因地制宣布点试验,逐步推广该项新技术。果树穴肥水地膜覆盖新技术,具有促使树体健壮、提早结果,提高果品产质量和省水、节肥等优点。该项技术是采用地膜覆盖,防止土壤中的水分蒸发,在根的集中分布层挖穴埋一定数量草把,将施入的肥水贮藏起来,减少流失,逐渐释放养分,使全年肥水供给稳定,以改善果树发育状况,达到
In April 1990, the State Science and Technology Commission held a “National Fruit Tree Hole Fertilizer Film Mulching and Grass Covering Meeting” in Yantai, Shandong Province. It was decided in 1990 that the new technology of film mulching and fertilization of fruit tree cave fertilizer would be included in the national key scientific and technological achievements popularization plan , Requiring all localities to announce point-by-point tests and gradually promote this new technology. Fruit tree hole fertilizer water mulching of new technologies, with the tree to promote robust, early results and improve the quality of fruit production and water, fertilizer and other advantages. The technology is the use of plastic film cover to prevent the evaporation of water in the soil, digging holes in the root of the centralized distribution layer buried a certain amount of grass, fertilizer will be applied to storage, reduce loss, and gradually release nutrients, the annual fertilizer supply stability , To improve the development of fruit trees to reach