法国是温带国家之一,春天的气候有时较为凉爽。为了从春天开始就能够为消费者提供蔬菜、鲜花或水果,菜农和果农很早就对能够改善产品早熟的技术发生了兴趣,尤其是农用塑料薄膜和农用织物。他们通过采用有纺或无纺织物,或者薄厚不一的农用塑料膜,可以加快植物的生长,调节生产,也可以用来保护植物免受灾害气候、昆虫、紫外线等的伤害。农用膜有多种用途,将来也会越采越多地采用可生物降解的材料来制造。 France is one of the temperate countries, and the climate in spring is sometimes cooler. To provide consumers with vegetables, flowers or fruits from the start of spring, vegetable growers and growers have long been interested in technologies that can improve the precocity of products, especially agricultural plastic films and agricultural fabrics. Through the use of woven or non-woven fabrics or plastic film of different thicknesses, they can accelerate the growth of plants and regulate their production. They can also be used to protect plants from disasters, insects, ultraviolet rays and the like. There are many uses of agricultural films, the more the more the more the more the use of biodegradable materials to manufacture.