NOVELTY - Slow-release fertilizer comprises urea, ammonium nitrate, biogas residue, rapeseed cake fertilizer, Phoebe bournei, straw, river sand, potassium dihydrogen phosphate, walnut shells, glucose, calcium lactate, borax, copper citrate, ferrous citrate, methyl silicate, sodium dodecyl sulfate, sodium dehydroacetate, baking powder, malt, mannoprotein, beta -aminoisobutyric acid, polyvinyl alcohol, loach powder, and auxiliary materials.    USE - As slow-release fertilizer for sugarcane.    ADVANTAGE - The slow-release fertilizer increases disease resistance ability of sugarcane seedlings.    DETAILED DESCRIPTION - Slow-release fertilizer comprises 30-32 pts. wt. urea, 10-12 pts. wt. ammonium nitrate, 6-8 pts. wt. biogas residue, 15-18 pts. wt. rapeseed cake fertilizer, 6-8 pts. wt. Phoebe bournei, 8-10 pts. wt. straw, 15-18 pts. wt. river sand, 28-30 pts. wt. potassium dihydrogen phosphate, 3-5 pts. wt. walnut shells, 5-8 pts. wt. glucose, 0.2-0.3 pts. wt. calcium lactate, 4-5 pts. wt. borax, 0.2-0.3 pts. wt. copper citrate, 2-4 pts. wt. ferrous citrate, 0.01-0.02 pts. wt. methyl silicate, 0.2-0.3 pts. wt. sodium dodecyl sulfate, 6-8 pts. wt. sodium dehydroacetate, 12-15 pts. wt. baking powder, 4-6 pts. wt. malt, 2-5 pts. wt. mannoprotein, 0.01-0.02 pts. wt. beta -aminoisobutyric acid, 8-10 pts. wt. polyvinyl alcohol, 1-3 pts. wt. loach powder, and 3-5 pts. wt. auxiliary materials. The auxiliary material comprises 1-3 pts. wt. cinnamon, 1-2 pts. wt. sodium dodecylbenzenesulfonate, 2-3 pts. wt. manganese sulfate, 4-5 pts. wt. caseinophosphopeptide, 0.01-0.02 pts. wt. nano-carbon, 6-8 pts. wt. sodium carboxymethyl starch, 2-3 pts. wt. sodium bicarbonate, and 1-2 pts. wt. alpha -lipoic acid. The auxiliary material is prepared by mixing sodium dodecylbenzenesulfonate and 10 times water, heating the mixture at 55-65 degrees C, adding cinnamon, manganese sulfate, caseinophosphopeptide, and nano-carbon to the heated product, stirring the mixture uniformly for 40-50 minutes, adding the remaining materials, continuously stirring the mixture for 1-2 hours, and cooling the mixture to room temperature.