METHOD FOR PREPARING HUMATIZED ORGANIC FERTILIZER Russian patent published in 2004 - IPC

FIELD: agriculture, fertilizers. SUBSTANCE: invention can be used in manufacturing organic fertilizers eliciting high agrochemical effectiveness, nutrient value and prolonged effect. Method involves high- temperature steaming milled vegetable waste, mixing with impregnating solution and exposition. Steamed mass of milled vegetable waste is subjected for activation by effect of thermal drop by addition of cold impregnating solution with temperature 10-20 C to the hot vegetable mass at temperature 120-130C. Cold impregnating solution represents a mixture of humic acids sodium or potassium salts prepared from vegetable raw, turf of coal and with nitrogen-containing component in the total nitrogen content 5-10%. Then the activated steamed mass is heated at temperature 80-100 C for 0.5-1 h and kept at temperature 20-25 C for 24 h, not less. Invention provides accelerating process for composting and preparing a fertilizer. EFFECT: improved preparing method. 4 cl, 3 tbl, 3 ex