METHOD FOR PREPARING ORGANOMINERAL COMPLEX FERTILIZER OUT OF MANURE Russian patent published in 2003 - IPC

FIELD: agriculture. SUBSTANCE: preheated manure should be stored into storage piles followed by anaerobic fermentation. After heating manure up to 75-85 C one should introduce mother liquor of bischofite of sulfate type of MgCl₂•6H₂O formula at molecular weight of 203.303 to cool treated mass up to fermentation temperature within 53-55 C. Mother liquor should be introduced by layers under pressure of 0.03-0.08 mPa at expenses of 100-200 l/t manure; moreover, layers should be applied gradually horizontally at mutual departure of 0.3-0.5 m. Innovation enables to increase availability of microelements and improve physicochemical characteristics of fertilizer. EFFECT: higher efficiency. 9 tbl