NOVELTY - Slow release fertilizer comprises 200-220 pts. wt. organic waste water, 80-90 pts. wt. pumpkin, 50-60 pts. wt. bran, 30-40 pts. wt. paper making residue, 30-40 pts. wt. cottonseed cake, 35-48 pts. wt. tea seed cake, 70-80 pts. wt. milk vetch, 50-60 pts. wt. sun hemp, 60-80 pts. wt. alfalfa, 5-8 pts. wt. active coal, 10-12 pts. wt. meerschaum, 50-70 pts. wt. manure, 20-40 pts. wt. dairy manure, 30-50 pts. wt. rabbit manure, 20-30 pts. wt. duck manure, 35-45 pts. wt. silkworm excrement, 0.08-0.1 to pts. wt. calcium superphosphate, 1.2-2 pts. wt. borax and 5-10 pts. wt. nano-carbon.    USE - Slow release fertilizer used for planting watermelon (claimed).    DETAILED DESCRIPTION - Slow release fertilizer comprises 200-220 pts. wt. organic waste water, 80-90 pts. wt. pumpkin, 50-60 pts. wt. bran, 30-40 pts. wt. paper making residue, 30-40 pts. wt. cottonseed cake, 35-48 pts. wt. tea seed cake, 70-80 pts. wt. milk vetch, 50-60 pts. wt. sun hemp, 60-80 pts. wt. alfalfa, 5-8 pts. wt. active coal, 10-12 pts. wt. meerschaum, 50-70 pts. wt. manure, 20-40 pts. wt. dairy manure, 30-50 pts. wt. rabbit manure, 20-30 pts. wt. duck manure, 35-45 pts. wt. silkworm excrement, 0.08-0.1 to pts. wt. calcium superphosphate, 1.2-2 pts. wt. borax, 5-10 pts. wt. nano-carbon, 20-30 pts. wt. marsh gas pool residue, 30-40 pts. wt. humic acid, 8-12 pts. wt. composite enzyme preparation, 10-16 pts. wt. composite microbial inoculum, 20-26 pts. wt. residue, 20-25 pts. wt. straw silk, 16-25 pts. wt. wooden meal, 1-3 pts. wt. sodium alginate, 5-8 pts. wt. root preparation, 5-8 pts. wt. edible fungus bran, 10-18 pts. wt. tobacco waste, 5-8 pts. wt. montmorillonoid, 18-20 pts. wt. chitosan and 15-18 pts. wt. ethyl cellulose. An INDEPENDENT CLAIM is included for a method for preparing slow release fertilizer, which involves:    (A) mixing organic waste water, banana, rice chaff, paper-making residue, cotton seed cake, tea seed cake, milk vetch, sun hemp and alfalfa uniformly;    (B) regulating pH of obtained mixture to 6-7;    (C) enzymolysing obtained mixture with composite enzyme preparation at high temperature;    (D) mixing duck excrement, stiff silkworm, calcium phosphate, borax, manure, cow manure and rabbit manure uniformly;    (E) regulating pH of obtained mixture to 6-8;    (F) fermenting obtained mixture with composite microbial inoculum, active coal and sepiolite;    (G) mixing enzymolysed material, fermented material, nano carbon, marsh gas pool residue and salt uniformly;    (H) drying and crushing obtained mixture;    (I) granulating crushed material;    (J) mixing granule with remaining material; and    (K) granulating obtained mixture using granulator to obtain slow release fertilizer.