NOVELTY - Organic and inorganic fertilizer and its preparation are claimed. The fertilizer comprises sugar, Melia azedarach peel, Cyrtomium, Phellodendron, trace element, potassium fulvate, adhesive, urea, monoammonium phosphate, potassium chloride, ammonium sulfate and effective microorganism (EM) liquid in a 170-190:5-15:5-15:5-15:15-25:30-50:15-30:220-245:170-190:75-95:170-190:20-40. The trace element comprises zinc amino acid chelate, boron amino acid chelate, iron amino acid chelate and copper amino acid chelate.    USE - As organic and inorganic fertilizer for cotton (claimed).    ADVANTAGE - The fertilizer is prepared by simple method, and enables to satisfy the needs of cotton for various nutrients in the growth process.    DETAILED DESCRIPTION - Organic and inorganic fertilizer and its preparation are claimed. The fertilizer comprises sugar, Melia azedarach peel, Cyrtomium, Phellodendron, trace element, potassium fulvate, adhesive, urea, monoammonium phosphate, potassium chloride, ammonium sulfate and effective microorganism (EM) liquid in a 170-190:5-15:5-15:5-15:15-25:30-50:15-30:220-245:170-190:75-95:170-190:20-40. The trace element comprises zinc amino acid chelate, boron amino acid chelate, iron amino acid chelate and copper amino acid chelate in a ratio of 1:0.8-1.2:0.9-1.2:1-1.5. Method for preparation of fertilizer, involves (a) drying sugar residue, until the moisture content reaches 40-50%, crushing dried material, and sieving crushed material using 100-150 mesh sieve, (b) adding EM liquid to the reaction tank, stirring uniformly at a speed of 5-6 revolutions per minute, heating mixture at 40 plus minus 5 degrees C, and fermenting mixture for 2 days, (c) crushing M.azedarach peel, Cyrtomium, and Phellodendron, sieving crushed material using 200 mesh sieve, adding sieve material into to the reaction tank, (d) adding remaining raw materials into tank, stirring mixture at speed of 20-30 revolutions per minute for 30 minutes, and (e) granulating mixture at 100-110 degrees C, drying granules for 2-3 hours, cooling granules to 25-30 degrees C, sieving granules, selecting granules having diameter of 1.5-3 mm, and packing the granules. An INDEPENDENT CLAIM is included for method for preparing the fertilizer, which involves performing the above-mentioned method.