近年来随着保护地栽培技术的迅速发展,农业机械领域内一个崭新的分支——保护地机械应运而生。所谓保护地栽培,就是采取防寒保温或防热降温措施,在不适于作物生长的季节里创造适于作物生长的小气侯条件的栽培方法。现在实行保护地栽培的作物,主要是一些蔬菜,近年来也出现了一些经济作物,例如花生、棉花和烟草等。利用保护地栽培蔬菜,可使蔬菜提早上市,对于改善蔬菜供应,菜粮增产增收都有重大意义。而利用保护地 In recent years, with the rapid development of protected cultivation techniques, a brand-new branch in the field of agricultural machinery - protection machinery came into being. The so-called protection of cultivation, is to take cold insulation or heat cooling measures, not suitable for crop growth in the season to create suitable for crop growth microclimate cultivation methods. Protected cultivated crops, mainly vegetables, are now being cultivated. In recent years, some cash crops have also emerged, such as peanuts, cotton and tobacco. The use of protected cultivation of vegetables, vegetables can make an early listing, for improving the vegetable supply, food production and income are of great significance. The use of protected areas