Method for prompting growth and development of tobacco floating seedlings

The present invention discloses a method for promoting growth in tobacco seedling float, it is in the field of plant cultivation method. Tobacco seeds were sown in the present invention in a mixed matrix of floating seedling nursery dedicated disc, by 4mmol / LCO (NH2) 2,5mmol / LKNO3,0.5mmol / LCa (NO3) 2 · 4H2O, 1mmol / LKH2PO4,1mmol / LMgSO4 deficiency stress completely normal medium · 7H2O, 0.06mmol / LEDTA-Fe, 0.125mg / LCu, 2.86mg / LB, 0.4mg / LZn, 0.1mg / lMo, 2mg / LMn consisting grown to four true leaves for 20 days and then switched to the normal nutrient solution grow for 17 days and then three days acclimatization dehydration Tuofei float tabacum seedlings. The present invention can better facilitate floating tobacco seedlings after transplanting before transplanting and root and shoot growth, increased aboveground biomass and root system can provide guidance for the cultivation of seedlings strong roots.