一.烂秧的范围和类型水稻幼苗死亡现象有烂秧和死苗二种。习惯上在积水秧田和湿润秧田中的一部分死苗称为烂秧;陆床育苗、各种保温育苗和旱直播田的幼苗死亡称为死苗。其主要类型如下: I. The scope and type of rotten seedlings Rice seedling death phenomenon rotten seedlings and dead seedlings two. Customary in the water seedling and wet seedling in the part of the dead seedlings called rotten seedlings; bed nursery, seedlings of various incubation and dry seeding field death known as dead seedlings. The main types are as follows: