▎ 摘　　要

NOVELTY - Fertilizer comprises graphene, dipotassium phosphate, amino acid, naphthalene acetic acid sodium, calcium carbonate, borax, pumpkin, humic acid and bean powder and further comprises 39-52 wt.% total organic material and 12.3-17.1 wt.% total nitrogen, phosphorus and potassium. USE - Fertilizer for reducing plant disease rate. ADVANTAGE - The fertilizer has slow relese and porous structure which helps in absorbing heavy metal and other harmful substance and improving soil quality. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing fertilizer, which involves: (A) crushing pumpkin; (B) adding water; (C) sterilizing; (D) cooling; (E) adding biological fermenting agent to ferment to obtain pumpkin fermented material; (F) crushing humic acid and soybean root powder; (G) sieving; (H) adding graphene and amino acid; (I) mixing; (J) stirring; (K) allowing to stand for 1 day to obtain crushed mixed material; (L) taking pumpkin fermented material and crushed mixture after adjusting pH value; (M) mixing with phosphate, naphthalene, calcium carbonate and borax; and (N) granulating to obtain the desired fertilizer.