NOVELTY - Preparing compound fertilizer involves preparing preliminary matrix material, insulating matrix material, hydrophilic matrix material and organic matrix material, and then mixing prepared materials. Preliminary matrix material is prepared by heating mixture of wood powder (1 pt. wt.), perlite (6-10 pts. wt.) at 60-65 degrees C for 10-25 minutes, and then cooling obtained mixture. Perlite is preheated to 1000-1300 degrees C. Insulating matrix material is prepared by mixing starch (1 pt. wt.) and clay powder (45-55 pts. wt.). Hydrophilic matrix material is prepared by pulverizing konjac roots.    USE - Method for preparing compound fertilizer used for persimmon (claimed).    ADVANTAGE - The compound fertilizer is eco-friendly, and increases economic benefit, yield of konjac, and absorption efficiency of roots.    DETAILED DESCRIPTION - Preparing compound fertilizer involves preparing preliminary matrix material, insulating matrix material, hydrophilic matrix material and organic matrix material, and then mixing prepared materials. Preliminary matrix material is prepared by heating mixture of wood powder (1 pt. wt.), perlite (6-10 pts. wt.) at 60-65 degrees C for 10-25 minutes, and then cooling obtained mixture. Perlite is preheated to 1000-1300 degrees C. Insulating matrix material is prepared by mixing starch (1 pt. wt.) and clay powder (45-55 pts. wt.). Hydrophilic matrix material is prepared by pulverizing konjac and sweet potato roots by 100 mesh sieve. Organic matrix material is prepared by composting mixture of baking powder (1 pt. wt.), konjac powder (9-11 pts. wt.) and animal dung (45-55 pts. wt.) for 40-45 days. Sucrose (1- pts. wt.) is dissolved in water (100 pts. wt.) at 60 degrees C. Rice bran (50 pts. wt.), tea (50 pts. wt.), soybean meal (39 pts. wt.) and yeast (1 pt. wt.) are added to obtained solution, and then mixed with compost pile 65-75 degrees C for 40-45 days. Fat absorption release matrix material (1 pt. wt.), preparatory fertilizer matrix material (1 pt. wt.), pro-fertilizer matrix material (1 pt. wt.) and organic pro-fertilizer (7-13 pts. wt.) are mixed, and then obtained product is tested. Ratio of nitrogen, phosphorus pentoxide, potassium oxide, and other substances is 5:4:10:81.