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在果树大面积栽培中,为提高成活率,促进幼树的生长发育,山东省诸城县从1983年开始在郝戈庄、皇华、桃林三个乡镇五个大队进行了果树定植后地膜覆盖小面积试验,1984—1986年大面积推广应用。四年地膜覆盖面积达8750 0亩,占发展面积的56.8%。通过试验、示范和大面积推广应用,对提
In the large-scale cultivation of fruit trees, in order to improve the survival rate and promote the growth and development of saplings, the Zhucheng County of Shandong Province started to cover the fruit trees after the fruit trees were planted in 1983 by five battalions of Hao Gezhuang, Huanghua and Taolin Small area test, 1984-1986 a large area of promotion and application. Four-year film mulching area of 8750 0 acres, accounting for 56.8% of the development area. Through trials, demonstrations and large-scale promotion and application of the mention