一、适时育苗:采用营养钵育苗,要掌握好育苗期,如果育苗过早,加上水肥条件好,棉苗生长发育快,小麦还没收割,棉苗已现蕾,棉苗在苗床密度大,造成棉苗瘦弱高腿,个体发育不良,移栽时成活率低,缓苗时间长,棉苗不早发;育苗晚,移栽时棉苗小,生长发育晚,同样达不到早发的目的。据调查,以4月 First, timely nursery: nutrition bowl nursery, to grasp the nursery, if the nursery premature, coupled with good water and fertilizer, cotton seedlings grow fast, wheat has not been harvested, cotton seedlings have budding, cotton seedling density in the seedbed , Resulting in thin and thighs of cotton seedling, individual dysplasia, low survival rate after transplanting, hibernation for a long time, cotton seedlings do not premature; late nursery, cotton seedlings transplanted small, late growth, the same can not reach the early the goal of. According to the survey to April