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为了充分发挥塑料薄膜地面覆盖的保温、保水、保肥、疏松土壤、改善微生物活动条件和抑制杂草生长的作用,选择适宜的畦型和保证高质量整地作畦,确定正确的覆膜时间,是非常重要的。关于畦型问题。目前,从我省地膜覆盖栽培面积大的花生、棉花、蔬菜来看,畦型有高畦、窄高畦(高垄)、平畦、低畦、双垄等。高畦。这是地膜覆盖栽培的主要畦型。一般畦幅100～110厘米,畦面宽60～65厘米,畦沟宽40～45厘米,畦高10厘米左右。这种规格的高畦,覆盖的增温、保水、排水效果都好,耕层土壤被加厚,有利于作物根系生长,而且利用薄膜比较经济,成本低。但是,目前生产上,
In order to give full play to the plastic film covering the ground surface insulation, water, fertilizer, loose soil, improve microbial activity conditions and inhibit the growth of weeds, select the appropriate 畦 type and ensure high quality preparation for 畦, to determine the correct film time, is very important. About 畦 type problem. At present, from the peanut, cotton and vegetables in the mulching area of mulching cultivation in our province, the pomfret type is of the high ridge, the narrow ridge and the high ridge, the flat ridge, the low ridge and the double ridge. High 畦. This is the main type of plastic film mulch cultivation. General width of 100 to 110 cm, 60 to 65 cm wide face, 畦 trench width of 40 to 45 cm, 畦 high about 10 cm. This high-tech specifications, covering the warming, water retention, drainage effect is good, topsoil is thickened, is conducive to crop root growth, and the use of film is more economical and low cost. However, at present,