水稻是高产作物,缺点是花费人工太大,走机械化的道路,是人们长期以来的向往。机械插秧已经试验很久了,但若得不到工厂化育秧的配套,好处还是不大。近年来,我国有些地方正在引进日本的塑料大棚盘式育秧和机械化插秧相配合的栽培技术,但这套育秧办法有一些严重缺点,妨碍它的推广。其一是用自然土作床土,每盘要8—10斤,种一亩田就得二百多 Rice is a high-yield crop, the disadvantage is that it takes too much labor and takes the road of mechanization, which has long been a longing for people. Mechanical seedlings have been tested for a long time, but if you do not get the support of factory-grown seedlings, the benefits are still small. In recent years, there are some places in our country that are introducing the cultivation techniques of the combination of disc-type seedling cultivation and mechanized seedling cultivation in plastic greenhouse in Japan. However, this method has some serious shortcomings that prevent its promotion. One is to use natural soil as bed soil, each dish should be 8-10 catties, cultivating more than 200 fields per mu