NOVELTY - Fertilizer comprises 24-40 wt.% inorganic fertilizer, 40-56 wt.% organic fertilizer and 15-25 wt.% biological preparation, where inorganic fertilizer comprises 20-50 wt.% urea, 15-30 wt.% diammonium phosphate, 20-45 wt.% potassium sulfate, 1-5 wt.% trace element and 5 wt.% adhesive. Organic fertilizer comprises 40-50 wt.% straw powder or rice hull, 10-20 wt.% animal wast and 40-50 wt.% potato residue. Biological preparation comprises photosynthetic bacteria, yeast, lactic acid bacteria, Bifidobacterium, Bacillus subtilis or Bacillus licheniformis.    USE - Fertilizer used for planting rice (claimed).    ADVANTAGE - The fertilizer is economic, and ensures increased yield, strong stress resistance property, disease resistance property, no poisonous and harmful effect, reduced soil decomposition and improved ecological environment of soil.    DETAILED DESCRIPTION - Fertilizer comprises 24-40 wt.% inorganic fertilizer, 40-56 wt.% organic fertilizer and 15-25 wt.% biological preparation, where inorganic fertilizer comprises 20-50 wt.% urea, 15-30 wt.% diammonium phosphate, 20-45 wt.% potassium sulfate, 1-5 wt.% trace element and 5 wt.% adhesive. Organic fertilizer comprises 40-50 wt.% straw powder or rice hull, 10-20 wt.% animal wast and 40-50 wt.% potato residue. Biological preparation comprises photosynthetic bacteria, yeast, lactic acid bacteria, Bifidobacterium, Bacillus subtilis, Bacillus licheniformis, Bacillus laterosporus, Bacillus megaterium, Azotobacter chroococcum or Actinomycete. An INDEPENDENT CLAIM is included for a method for preparing fertilizer, which involves;    (A) mixing, crushing and drying urea, diammonium phosphate, potassium sulfate, trace element and adhesive to obtain inorganic fertilizer;    (B) mixing straw powder or rice hull powder, animal excrement, potato residue, straw leavening agent and waste water;    (C) fermenting obtained mixture for 3-5 days at 60-70 degrees C to obtain organic fertilizer;    (D) mixing inorganic fertilizer, organic fertilizer and biological preparation uniformly to obtain product; and    (E) packaging obtained product.