FERTILIZER FOR PROMOTING HUMIFICATION RIPENING OF ORGANIC MATTER AND PREPARING SOIL AND ITS PRODUCTION

摘要

PROBLEM TO BE SOLVED: To produce the fertilizer which functions as a promoter for humification ripening of organic matter and concurrently enables the preparation of well-balanced soil with reduced manpower by using calcium cyanamide and fused magnesium phosphate as the major components of the fertilizer. SOLUTION: This fertilizer contains fused magnesium phosphate and calcium cyanamide as the major components and is produced by blending a mixture of fused magnesium phosphate and calcium cyanamide with a binder and then, granulating the resulting blend into a granular fertilizer with a tumbling granulation method. If necessary, slaked lime, calcium carbonate, calcium silicate, blast-furnace slag, or the like may further be blended into the fertilizer. By concurrently using fused magnesium phosphate and calcium cyanamide as the major components of the fertilizer, this fertilizer functions as a promoter for humification ripening of organic matter and also, is useful as a soil preparation fertilizer. By applying the fertilizer to bulky fresh organic matter in an amount larger than the amount required for ripening the organic matter, the effect of this fertilizer as a soil preparation fertilizer is sufficiently shown in soil.