目前,全国已有四十余种型号的地膜覆盖机投入农业生产使用,其中多数通过了省、市级鉴定。这些机型的铺膜工作原理基本相同,只是由于各地自然条件和农艺要求的不同,使其主要工作部件的结构和配置存在差异。下面,简单介绍一下地膜覆盖机的主要工作部件。起垅部件目前国内地膜覆益机的起垅装置有圆盘起垅、犁铧起垅、旋耕起垅三种型式。起垅部件直接影响作畦质量。在满足起土成畦的条件下,应尽量选择阻力较 At present, more than 40 kinds of plastic film capping machines have been put into agricultural production throughout the country, most of which have passed provincial and municipal appraisal. The working principles of the filming of these models are basically the same except that the structure and configuration of the main working components are different due to the differences in the natural conditions and agronomic requirements of different places. Below, a brief description of the main parts of the film covering machine. At present, there are three kinds of devices for lifting and folding of the film mulching machine in China. Starting 垅 parts directly affect the quality of 畦. Under the condition of satisfying the soil formation, the resistance should be chosen as far as possible