棉花从出苗到现蕾这段时间称为苗期。一般历时46天左右。苗期主要是营养生长,同时为生殖生长打好基础。实践证明,苗期管理抓的早,抓的好,就能实现壮苗早发。管理的主攻方向是保全苗、育壮苗、促早发,关键是一个“促”字。对棉苗的要求是:4月底或5月初 Cotton from emergence to budding this period called seedling. Generally lasted about 46 days. Seedling is mainly vegetative growth, laying the foundation for reproductive growth. Practice has proved that early grasp of seedling management, grasp of good, we can achieve strong seedlings early hair. The main management direction is to protect the seedlings, nurturing seedlings, promote early hair, the key is a “promote” the word. Cotton seedlings requirements are: end of April or early May