NOVELTY - Slow release fertilizer comprises diatomite, calcium carbonate, borax, vitamin C, magnesium phosphate, disodium hydrogen phosphate, potassium hydrogen tartrate, urea, diammonium phosphate, crop waste, plasma protein powder, Crotalaria powder, potassium alginate, stearic acid, gluten, Vaseline (RTM: Petroleum jelly), Tween-80 (RTM: Polysorbate 80), medical stone powder, silicon sulfate and auxiliary agent.    USE - The slow release fertilizer is useful for crop (claimed).    ADVANTAGE - The fertilizer can be prepared in a cost-effective and eco-friendly manner, has good slow releasing capacity, and increases the yield and quality of crop.    DETAILED DESCRIPTION - Slow release fertilizer comprises 10-15 pts. wt. diatomite having a particle size of 1250-2000 meshes, 10-12 pts. wt. calcium carbonate, 6-8 pts. wt. borax, 2-3 pts. wt. vitamin C, magnesium phosphate, 8-10 pts. wt. disodium hydrogen phosphate, 10-12 pts. wt. potassium hydrogen tartrate, 20-22 pts. wt. urea, 25-28 pts. wt. diammonium phosphate, 12-15 pts. wt. crop waste, 3-5 pts. w. plasma protein powder, 1-3 pts. wt. Crotalaria powder, 4-5 pts. wt. potassium alginate, 2-4 pts. wt. stearic acid, 10-12 pts. wt. gluten, 1-3 pts. wt. Vaseline (RTM: Petroleum jelly), 1-2 pts. wt. Tween-80 (RTM: Polysorbate 80), 2-4 pts. wt. medical stone powder, 6-8 pts. wt. silicon sulfate and 4-5 pts. wt. auxiliary agent. The auxiliary agent comprises 14-15 pts. wt. vermiculite powder, 2-3 pts. wt. borax, 1-2 pts. wt. calcium amino acid chelate, 1-2 pts. wt. of manganese citrate, 1-2 pts. wt. zinc citrate, 4-6 pts. wt. methyl methacrylate, 2-3 pts. wt. Bacillus subtilis viable powder, 0.1-0.15 pts. wt. organic chelated titanium, 1-2 pts. wt. ammonium sulfate and balance amount of water. The auxiliary agent is prepared by adding vermiculite powder and borax with water, uniformly stirring the mixture, then adding organic chelated titanium, zinc citrate and methyl methacrylate, stirring the mixture at 70-80 degrees C for 30-45 minutes, then cooling at 20-35 degrees C, adding other remaining components, stirring the reaction mixture for 20-30 minutes, cooling the mixture, and drying obtained product. An INDEPENDENT CLAIM is included for preparing slow release fertilizer comprising performing fermentation process of the crop waste, mixing diatomite with water, grinding the diatomite for 20-30 minutes into powder form, then adding silicon sulfate and stirring for 10-15 minutes, then adding borax, uniformly stirring the mixture material and drying, mixing gluten, water, stearic acid, Vaseline (RTM: Petroleum jelly) and potassium alginate, heating the mixture at 60-80 degrees C, stirring, then adding Crotalaria powder, stirring the mixture for 20-30 minutes, adding other remaining material to obtain mixed material, placing the mixture in a granulator and then spraying, hot air drying and cooling to room temperature.