烟苗陶管增温壮苗培育试验初报

Preliminary Study on Strong Seedling Cultivation of Flue-Cured Tobacco by Terracotta Fire-Tube Heating

为改善烤烟育苗前期低温寡照天气对烟苗成苗的影响,提高壮苗培育水平,通过陶瓦火管空气加热方式,研究其对烟苗素质的影响。结果表明,与常规育苗方式相比,通过陶瓦火管对育苗棚进行供热,可将棚内温度提高3.8～5.6℃,苗池水温提高1.7～3.4℃,烟苗出苗提早10 d,成苗时间缩短15 d,进而可将烟苗移栽期提前两周左右。

In order to effectively improve the temperature of seedling shed on seedhng stage and improve the level of strong seedling cultivation, an experiment of terracotta fire-tube air heating was done, which aimed to study the effect of air heating on seedling quality of flue-cured tobacco. The result showed that, compared with the conventional seedling methods, terracot- ta fire-tube air heating could upgrade the seedling shed temperature 3.8-5.6 ℃ and nursery pond water temperature 1.7- 3.4 ℃,advance the time of the seedling emergence 10 days, advance the seedling time 15 days, and advance the transplanting period about two weeks.