本区5月少雨年份,死苗率约为20～30%;5月多雨年份,死苗率达50～70%,严重的则全部死亡而重播。六十年代以来,本区棉农为防止棉花死苗,采取了多项措施,收到了明显的效果。现将这些经验总结如下,供春涝棉区棉农参考。 In this area, there are few rainy days in May, with the rate of dead seedlings about 20-30%. In rainy years of May, the rate of dead seedlings reaches 50-70%, while serious ones all die and are replayed. Since the 1960s, cotton farmers in this region have taken a number of measures to prevent the dead seedlings of cotton and have received remarkable results. Now these experiences are summarized as follows, cotton paddy for spring flood area reference.