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烤烟漂浮育苗苗期管理阶段是培育健壮烟苗的关键期。炼苗是漂浮育苗必不可少的一个阶段,只有炼苗到位,才能增强烟苗移栽后对自然环境的适应力,随着气温升高,烟苗生长加速,容易成苗过早或幼苗过嫩,因此一般是苗床中后期进行炼苗,控制烟苗生长速度,促进各器官均衡发展,提高烟苗抗逆行和适应大田环境的能力。
Flue-cured tobacco seedling nursery stage of management is to nurture a critical period of tobacco seedlings. Cultivating seedling is an indispensable stage of floating nursery. Only when the hardening is in place can the adaptability of natural environment be enhanced after the transplanting of tobacco seedlings. As the temperature rises, the growth of tobacco seedling accelerates, the seedlings become premature Tender, it is generally the latter part of seedbed refining, control the growth rate of tobacco seedlings and promote the balanced development of various organs and improve anti-retrograde tobacco seedlings and adapt to the field environment ability.