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一、地膜的选择地膜种类有聚乙烯薄膜、高压低密度聚乙烯薄膜、低压高密度聚乙烯薄膜和线性共混薄膜等，其规格亦不相同。栽培马铃薯要求速明度高、耐拉伸的高压聚乙烯地膜，膜宽gO厘米；花生要求线性共混地膜，厚度在0．007毫米左右，膜宽80厘米～90厘米。农作物栽培一般选用
First, the choice of plastic film types of polyethylene film, high pressure low density polyethylene film, low pressure high density polyethylene film and linear blend film, the specifications are not the same. Cultivation of potato requires high speed, high tensile polyethylene film, film width gO cm; peanut linear blend film requires a thickness of about 0.007 mm, the film width of 80 cm to 90 cm. Crop cultivation generally used