NOVELTY - Organic-inorganic compound fertilizer comprises (in parts weight): fermented organic fertilizer (40-70), urea (0-25), diammonium phosphate (8-28), potassium chloride (8-16), zinc fertilizer (0.5-1.5), boron fertilizer (0.3-0.5), 20% virus controlling solution (0.1-0.16) and DuPont Rynaxypyr (RTM: Anthranilic diamide) (68.75%) (0.15-0.21).    USE - The organic-inorganic compound fertilizer is useful for controlling diseases in plants, preferably cotton (claimed).    ADVANTAGE - The fertilizer improves soil fertility, has rational nutrients, and promotes robust of cotton seeds.    DETAILED DESCRIPTION - Organic-inorganic compound fertilizer comprises (in parts weight): fermented organic fertilizer (40-70), urea (0-25), diammonium phosphate (8-28), potassium chloride (8-16), zinc fertilizer (0.5-1.5), boron fertilizer (0.3-0.5), virus controlling solution (0.1-0.16) and Rynaxypyr (RTM: Anthranilic diamide) (68.75%) (0.15-0.21). The fermented organic fertilizer is obtained by stacking (in parts) sludge (40-50), tobacco scrap (30-50) and microbial inoculum (10-20), fermenting and drying the fermented mixture until the water content is 25-35 wt.%. The virus controlling solution comprises matrine (20%), sulfur and calcium oxide. An INDEPENDENT CLAIM is included for preparation of the fertilizer, which involves (a) mixing the sludge, tobacco scrap and inoculum, regulating water content to 60-65 wt.% and pH to 7-7.5, covering the mixture using plastic film, performing stacking at 50 degrees C for 3-5 days, and turning the stack and fermenting for 3-5 days, (b) mixing (in parts) obtained solid microbial inoculum (15-25), sludge (60-80), urea (0.5-2), calcium superphosphate (2-4) and potassium chloride (1-2), and fermenting by the above performing method, (c) mixing sludge, tobacco scrap and microbial inoculum, regulating water content to 55-65 wt.% and pH to 7-7.5 and mass ratio of carbon to nitrogen to be 23-28, stacking the material into a trapezoid stack having height of 1.5-1.8 m, making holes from top to bottom of the stack (10-15 holes/m2), performing stacking under aerobic condition at 50 degrees C for 4-7 days, cooling and fermenting for 3-7 days, and drying the fermented organic fertilizer until the water content is 25-35 wt.%, and (d) preparing compound fertilizer by mixing (in parts) fermented organic fertilizer (40-70), crushed urea having 80 mesh size (0-35), diammonium phosphate (8-28), potassium chloride (8-16), zinc chloride or zinc sulfate (0.5-1.5), boric acid or borax (0.3-0.5), transferring the mixture into the disc or drum granulator, preparing 20% virus controlling solution and DuPont Rynaxypyr (RTM: Anthranilic diamide) (68.75%), mixing the components in water in the weight ratio of 1:10, spraying the mixed solution on the fertilizer particles, granulating the obtained mixture, and drying and screening the product.