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随着塑料工业的发展,塑料薄膜在农业生产上的应用日益广泛,塑膜地面覆盖栽培已在很多蔬菜、瓜果栽培上得到推广应用,起到早熟、增产和改进品质的作用,深受菜农欢迎。我们在此启示下,根据我省主要产棉县——敦煌春季地温回升慢,无霜期短,雨量稀少,蒸发量大的气候特点和棉花受这些因素的影响而导致的有效花期短,单株产量低而限制了棉花单位面积产量进一步提高的现实,在省农业厅经济作物处的支持下,于1981年在敦煌县党河公社红星塔一队进行了棉花地膜覆盖栽培试验,覆盖效果明显,初报如下:
With the development of plastic industry, the application of plastic film in agricultural production is more and more widely. The plastic film ground covering cultivation has been popularized and applied in many vegetables and fruits cultivation, playing the role of early maturity, increasing yield and improving quality. welcome. Based on this revelation, according to the climate of cotton producing county in Dunhuang, which has a slow springback in spring, short frost-free period, scarce rainfall and large evaporation, and the shortened effective flowering period of cotton caused by these factors, yield per plant Low and limit the yield per unit area of cotton to further improve the reality, in the Provincial Department of Agriculture cash crop support, in 1981 in Dunhuang Danghe commune Red Star Tower first team cotton mulch cotton cultivation experiments, covering effect is obvious, early Reported as follows: