METHOD OF ORGANOMINERAL FERTILIZER PREPARING Russian patent published in 2002 - IPC

FIELD: agriculture, fertilizers. SUBSTANCE: invention relates to production of organomineral fertilizers from industrial waste, in part, from hydrolytic lignin. Hydrolytic lignin is subjected for active effect by the prepared association of nonpathogenic microorganisms isolated from hydrolytic lignin spent materials and taking part in metabolism and humification of lignin and carbohydrates in the presence of mineral additions (composting). For microorganism nutrition and enhancement of fertilizing effect of compost phosphorus-, potassium-, nitrogen-containing additions and lime or calcium carbonate are added to hydrolytic lignin taken in the ratio hydrolytic lignin : mineral additions = 19:0.8 - 1.2. After neutralization microbiological ferment as association of nonpathogenic microorganisms: Daedaleopsis confragosa, Phanerochaete chrysosporium, Penicillium citreo-viride, Trichosporon cutaneum D-46, Trichosporon cutaneum 5, Streptomyces asterosporus taken in the mass ratio hydrolytic lignin : ferment = 19 : 0.1 is added to obtained mixture. Method ensures to solve the problem of ecologically rational using lignocellulose waste, obtain fertilizer comprising nutrient elements the main part of that are in form assimilable by plants. EFFECT: improved method of preparing, expanded assortment of fertilizers. 3 cl, 2 tbl, 4 ex