The invention provides an organic tobacco
seedling culturing method. A floating
seedling culturing method is adopted for the
seedling culturing method. The method includes the following steps that
sowing is conducted, high-
phosphorus organic seedling culturing substrate is adopted for organic tobacco seedling culturing, a mode that two tobacco seeds are sowed per hole in the edge of a seedling culturing disc, and one tobacco seed is sowed per hole for other holes is adopted in the seedling culturing process, and manual
sowing or mechanical
sowing is conducted; first fertilizing is conducted in the first main leaf period, second fertilizing is conducted in the third main leaf period; third fertilizing is conducted about 15 days after the second fertilizing is conducted. By means of the method, a mode that inorganic seedling
fertilizer is usually adopted for an existing organic tobacco seedling culturing process, and all
organification of the seedling culturing process is achieved; besides, the cultured tobacco seedlings are superior to tobacco seedlings cultured through the combination of conventional seedling culturing substrate and inorganic tobacco seedling
fertilizer on the aspect of the strong seedling index, root vigor, blade
chlorophyll content, seedling recovering time after planting, yield and like; the tobacco seedlings are flourishing in effective roots, spiral roots and water roots are reduced obviously, and
algae in a seedling culturing
pool is reduced obviously.