Sodium salt of humic acid is selected as an adhesive to granulate fused calcium magnesium phosphate in this work.

• 选用腐植酸钠作为粘合剂，对钙镁磷肥进行造粒，得到的颗粒钙镁磷肥产品达到了出口日本的标准，此法值得推广和应用。