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地膜覆盖技术的应用可以对土壤起增温保墒作用,该技术已被广泛应用于作物栽培、树木育苗等方面。我们于1987年8月对绛县范壁村村民朱贵山应用地膜覆盖新植山楂幼树和村民原丁师未进行地膜覆盖情况作了调查。调查表明:地膜覆盖山楂幼树可以提高栽植苗成活率、促进幼树生长健壮,冠幅扩大,发枝量增多,及早进入结果期。现将调查分析结果总结如下:一、调查地概况调查地海拔535米,面积均为2亩,地下水位2米,土壤水肥条件较好,无霜期210天,全年日照时数2254.6小时,光照率52％,年平均降水量522.4毫米,平均气温11.4℃。
The application of plastic film mulching technology can play a role of warming the soil and preserving soil moisture. This technology has been widely used in crop cultivation, tree nursery and so on. In August 1987, we surveyed Zhu Guishan, a villager in Fanbi Village, Jiangxian County, about the application of mulch covering of newly planted hawthorn saplings and former villager Ding. The investigation shows that the mulching of hawthorn seedlings can improve the survival rate of seedlings, promote the robust growth of saplings, increase the crown width, increase the number of shoots, and enter the fruiting stage as early as possible. Survey results are summarized as follows: First, the survey ground Survey 535 meters above sea level, both an area of 2 acres, 2 meters of groundwater, soil water and fertilizer conditions are good, frost-free period of 210 days, the annual sunshine hours 2254.6 hours, the illumination rate 52%, the average annual rainfall of 522.4 mm, the average temperature of 11.4 ℃.