如今城里人一年四季都能吃上鲜嫩的时令瓜果,除感谢农民兄弟之外,还要归功于农膜、地膜。它们如同雪中炭雨中伞,覆盖在农作物上,保温,保肥,防止水分渗透,起着早熟、增产的作用。 据专家介绍,与国外相比,我国生产的农、地膜品种还比较单一,部 Nowadays, the city people can eat fresh seasonal fruits and vegetables all year round, thanks to farmers and brothers, thanks to plastic sheeting and plastic film. They are like rain umbrella in the snow, covered in crops, insulation, fertilizer, to prevent water infiltration, play a precocious, increasing the role. According to experts, compared with foreign countries, China’s production of agricultural, plastic film is still relatively simple, the Department