METHOD OF ADDING DICYANDIAMIDE POWDER TO FERTILIZER CONTAINING AMMONIUM AND SULFATE GROUP

摘要

Dicyanodiamide is applied onto the surfaces of ammonium-containing and sulfate-containing fertilizers at a fertilizer temperature of from 60 DEG to 130 DEG C. by mixing with finely divided dicyanodiamide. An aqueous solution containing calcium nitrate is applied at the same time or directly thereafter, with further mixing.