Study on the Seedling of Flue-cured Tobacco with Medium Substituted by Chinese Herbal Residues in Qianxinan Tobacco Area

[Objective] The research aimed to make full use of Chinese herbal medicine residue resources and verify the feasibility of fluecured tobacco seedling. [Method] The Chinese herbal residues and conventional flue-cured tobacco seedling medium were used to make the flue-cured tobacco seedling test. The effects of seedling with Chinese herbal residue medium on the tobacco emergence ratio,growth period and agronomic characteristics of flue-cured tobacco were studied. [Result] The emergence ratio of tobacco seeds with Chinese herbal residue medium was significantly lower than that of conventional medium. For the growth period,there was differences at the aspects of the emergence period,big and small cross period and cat ear period of tobacco seedlings between Chinese herbal residue medium and conventional medium,but the difference was not significant. For the agronomic characters in the seeding stage,the stem girth and leaf number of tobacco with Chinese herbal residue medium had significant differences with that of conventional medium,the stem height and number of lateral roots had no significant difference. [Conclusion] Chinese herbal residues had the basic conditions of floating seedling,so it could be popularized and applied.