水稻低棚塑料薄膜覆盖育苗,保温能力强、积温量多、温差变化小,因而秧苗生长速度快,苗全苗壮,并能防止病害和“烧苗”现象。如果采用旱育苗的管理方法,能培育出干物质含量高、抗寒能力和发根能力强,长势稳健,适于早插,缓苗快的壮秧。两年来,我们通过对水稻低棚、拱式单幅、平拱式双幅薄膜覆盖育苗的对比观察,初步看出,低棚育苗具 Rice plastic cover film shed low plasticity, thermal insulation ability, accumulated temperature, temperature change is small, so the seedlings grow fast, Miao Miao Zhuang strong, and to prevent disease and “burn seedlings” phenomenon. If using dry nursery stock management methods, can cultivate a high dry matter content, cold resistance and strong ability of hair root, steady growth, suitable for early insertion, Huanmiao fast seedlings. In the past two years, we compared the effects of covering rice seedlings with low-shed, arch-type single arch and double-arch arch film. It was initially shown that the low-