旱育苗是培育水稻壮秧的根本措施,而实行秋作床又是搞好旱育苗的基础。水稻育苗秋作床的好处是:第一,能加速土壤熟化。实行秋作床,床面新翻上的土,经一冬春的风吹日晒,可加速熟化,有利于秧苗生长。特别是在本田地育苗的苗床土壤经半年多的水淹,使土壤所含的无机盐大部分处在还原状态,不但不能被水稻吸收利用,反而对稻苗生长不利。秋作床后可使还厚的无机盐类氧化成为稻苗可以吸收利用的养分。第二,能提前育苗。过去,有些春作床的地区,常因春天整地不及时而延误育苗时间。地势低洼的水田区,往往因土壤返浆,一时不能整地作床,延误育苗的现象更为严重。秋作床将整地作床提前到头年秋季进行,春季只要温度适合,即可整平床面、施肥、播种,大大缩短了育苗时间。同时,秋作床 Dry seedling nursery is the fundamental measure to cultivate strong seedling of rice, and the implementation of autumn cotyledon is the basis of dry nursery. The benefits of rice nursery autumn beds are: First, to speed up the soil maturation. The implementation of autumn bed, bed new turn on the soil, the wind and sun through a winter sun, can accelerate the aging, is conducive to the growth of seedlings. Especially in Honda seedling bed soil after more than six months of flooding, so that most of the inorganic salts contained in the soil in a restored state, not only can not be absorbed by rice, but unfavorable to the growth of rice seedlings. After autumn bed can make thick inorganic salts oxidized rice seedlings can absorb nutrients. Second, nursery can advance. In the past, some areas of spring bedding often delayed the breeding time due to the lack of timely spring planting. Low-lying paddy fields, often due to the soil back to the pulp, not for a time for bed preparation, delay the phenomenon of nursery is more serious. Autumn as a bed bed for soil preparation in advance of the first fall of the spring, the spring as long as the temperature suitable, you can level the bed, fertilizing, sowing, greatly reducing the breeding time. At the same time, autumn bed