ORGANOMINERAL FERTILIZER AND METHOD FOR ITS MANUFACTURING Russian patent published in 2002 - IPC

FIELD: agriculture, production of fertilizers. SUBSTANCE: fertilizer contains damp nitrogen-free substance of bird dung, predominantly, poultry dung. It additionally contains calcium salts of nitrogen-bearing organic acids and calcium oxide hydrate. The fertilizer is obtained by supplementing the dung with a substance which absorb moisture and bind nitrogen-bearing acids followed by mixing. Ten weight portions of fresh bird dung are supplemented with about 10-5 weight portions of ground quick lime. The innovation enables to utilize the wastes of poultry science and regulate acid-base balance of soil. EFFECT: higher efficiency. 5 cl, 1 tbl