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蔬菜生产上使用地膜是近年来飞速发展的一项新技术,推广面积逐年增多,使用品种从开始的土豆,发展到茄果、瓜、豆、叶菜类等,地膜不仅在早春使用,而且发展到秋番茄的露地栽培上,这充分说明了地膜栽培具有无比生命力。其优点: 1.经济效益高,符合省工、省本的简易栽培要求。每亩只需薄膜费35元左右,成本费远远低于天膜栽培。 2.早熟、高产。主要原理是可以增加早期的地温,起到保湿、保肥、增温的效果。而且由于覆盖地膜后,土壤不直接被大雨冲板,使土壤疏松,作物发根快,长势旺,从而提高了植株的抗病能力,而且还可减少土壤养份的流失。
The use of plastic film in vegetable production is a new technology developed rapidly in recent years. The area of popularization has been increasing year by year. The varieties of potatoes used from the beginning to eggplant, melon, bean and leafy vegetable are not only used in early spring but also developed To autumn tomato cultivation, which fully demonstrates the vitality of plastic film cultivation. Its advantages: 1. High economic efficiency, in line with the provincial labor, the province of the simple cultivation requirements. Only about 35 yuan per mu fee film, the cost is far below the film cultivation days. Early maturity, high yield. The main principle is to increase the early ground temperature, play a moisturizing, fat, warming effect. And because the cover film, the soil is not directly heavy rain red plate, the soil loose, crop hair root fast, prosperous, thereby enhancing the plant’s disease resistance, but also reduce the loss of soil nutrients.