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农用塑料地膜应用于农业生产已有40多年的历史,它能保持植株的水分,防止杂草生长,还对幼苗的根部起保暖作用,过去使用的地膜初始是单一的黑色。后来增加了棕色和绿色,将来则会出现各种色彩的覆盖膜。
Agricultural plastic film has been used in agricultural production for more than 40 years. It keeps the water of plants and prevents the weeds from growing. It also keeps the roots of seedlings warm. The original plastic film used in the past was single black. Later, an increase of brown and green, in the future there will be a variety of colors covering film.