1results about How to "Nutritional supplements" patented technology

The invention discloses a special organic fertilizer for preventing and controlling tobacco black shank and a preparation method thereof.The special organic fertilizer is prepared from corn straw, rice husk charcoal, a biological leavening agent, limonin, salicylic acid, plant ash, shrimp shell powder and soluble potassium silicate, and the biological leavening agent is tarlaromyces flavus powder; the preparation process comprises the following steps: acidizing the prawn shell powder, crushing and fermenting the corn straws, the rice husk charcoal and the acidized prawn shell powder, increasing the activity of the tarlaromyces flavus powder by using limonin and salicylic acid, carrying out secondary fermentation, and finally granulating and drying. The growth and development of tobacco root systems are promoted, the stress resistance of the tobacco is enhanced, and the occurrence of soil-borne diseases is reduced, so that the yield of the tobacco is increased. Meanwhile, the tobacco absorbs more comprehensive and balanced nutrients, and the internal quality of the tobacco leaves is improved.