▎ 摘　　要

NOVELTY - Graphene compound fertilizer comprises 10-40 wt.% nitrogenous fertilizer, 5-50 wt.% potassium fertilizer, 10-50 wt.% phosphate fertilizer, and 0.1-5 wt.% graphene raw material. USE - Graphene compound fertilizer for agricultural production. ADVANTAGE - The graphene compound fertilizer uses various types of graphene to provide a multiple of fertilizer molecule adsorption capacity, using small size of graphene, high surface energy and multiple functional groups, adsorbing different fertilizer molecules, promoting the availability of the fertilizer in the soil, and ensuring the effective release of the fertilizer molecule in the soil environment. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing of graphene fertilizer which involves: (1) dissolving the nitrogenous fertilizer and amino graphene, potassium fertilizer and carboxyl graphene, phosphate fertilizer and nitrogen phosphorus graphene respectively in water, dispersing and mixing to obtain three types of water solution; (2) drying the three types of water solution in a drying machine till it is viscous, obtaining dope; (3) mixing the three viscous substances to the dope, stirring in the stirrer to obtain the primary material; (4) performing agglomeration granulation through heating in the primary drum granulator; and (5) drying the granules processed, sieving, cooling to obtain graphene fertilizer.