NOVELTY - Synergistic fertilizer comprises Paulownia sawdust (18-22 pts. wt.), potassium carbon (5-6 pts. wt.), bentonite (35-40 pts. wt.), modified powdered rock phosphate (60-80 pts. wt.), clay (8-12 pts. wt.), peat (7-10 pts. wt.), pine powder (5-7 pts. wt.), attapulgite (3-4 pts. wt.) and balanced amount of water. Modified powdered rock phosphate comprises phosphate powder (90-110 pts. wt.), gamma polyglutamate powder (1-2 pts. wt.), ferrous sulfate (4-8 pts. wt.), calcium bicarbonate (6-9 pts. wt.), Bacillus subtilis (2-3 pts. wt.) and silicate bacteria (3-4 pts. wt.).    USE - Synergistic fertilizer used for improving physical and chemical properties soil for peanut cultivation (claimed).    ADVANTAGE - The synergistic fertilizer ensures improved plant growth and yield of peanut, and absorption of nutrients in soil.    DETAILED DESCRIPTION - Synergistic fertilizer comprises Paulownia sawdust (18-22 pts. wt.), potassium carbon (5-6 pts. wt.), bentonite (35-40 pts. wt.), modified powdered rock phosphate (60-80 pts. wt.), clay (8-12 pts. wt.), peat (7-10 pts. wt.), pine powder (5-7 pts. wt.), attapulgite (3-4 pts. wt.) and balanced amount of water. Modified powdered rock phosphate comprises phosphate powder (90-110 pts. wt.), gamma polyglutamate powder (1-2 pts. wt.), ferrous sulfate (4-8 pts. wt.), calcium bicarbonate (6-9 pts. wt.), Bacillus subtilis (2-3 pts. wt.), silicate bacteria (3-4 pts. wt.), EDTA chelated copper (18-22 pts. wt.), magnesium humate (24-26 pts. wt.), black liquor (13-17 pts. wt.) and corn starch (35-45 pts. wt.). Modified powdered rock phosphate is prepared by heating black liquor to obtain concentrated product and adding phosphate powder to it to obtain a mixture. Obtained mixture is calcined at 400-500 degrees C, and mixed with gamma polyglutamate powder, EDTA chelated copper and magnesium humate to obtain another mixture. Obtained mixture is ground to obtain powder of particle size 150 mesh. Water is added to obtained powder, and then ferrous sulfate is added to obtained product at 40-60 degrees C for 20 minutes to obtain chelated product. Calcium bicarbonate is added to obtained product at 60-70 degrees C for 30 minutes. Heated product is cooled to room temperature and silicate bacteria is added to it at 20-30 degrees C for 7-8 days. Obtained product is ground to obtain final product of particle size 100-20 mesh. An INDEPENDENT CLAIM is included for a method for preparing synergistic fertilizer, which involves:    (A) heating bentonite at 750-800 degrees C for 2-3 hours and grinding it to obtain a powder of particle size 100 mesh;    (B) fermenting clay, peat, pine powder and Paulownia sawdust at 45-55 degrees C for 2-4 weeks, and grinding fermented product to obtain another powder; and    (C) mixing both the obtained powders with attapulgite to obtain final product.