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我省烤烟一般于12月中、下旬将开始播种育苗,2月下旬相继移栽于大田。因此,这段时间采用科学方法培育壮苗,缩短大田返青期,提高成活率,对提高烤烟优质高产具有重要意义。可是目前我省绝大部分地区都是采用传统的“拔苗”移栽育苗法,移栽时只带少量的老娘土,有的根本就不带土,因此烟苗因根系受伤,移栽后返青期长,需7天左右,以致生长缓慢;弱苗也易死亡而缺株,给管理工作带来不便。
Flue-cured tobacco in our province generally in mid-December, will begin planting seedlings in late February have been transplanted in the field. Therefore, during this period, adopting scientific methods to cultivate strong seedlings, shortening the greening period of the field and increasing the survival rate are of great significance for improving the high-yield and high-yielding flue-cured tobacco. However, most provinces in our province are using the traditional “plucking seedlings” transplanting seedling method, transplanting only with a small amount of cousin, and some do not bring soil, so tobacco seedlings due to root injury, after transplanting Rejuvenation period takes about 7 days, resulting in slow growth; weak seedlings are also vulnerable to death and lack of strains, to the management of the inconvenience.