NOVELTY - Bio-organic fertilizer comprises 1-3 pts. wt. urea, 1-3 pts. wt. diammonium phosphate, 2-6 pts. wt. potassium sulfate, 40-60 pts. wt. crop stalks, 5-15 pts. wt. fermented rapeseed, 5-15 pts. wt. soybean, 5-15 pts. wt. sesame meal, 5-15 pts. wt. humic acid, 0.5-1.5 pts. wt. biological bacteria and 0.5-1.5 pts. wt. trace elements. The crop straw include rice straw, tobacco stem or corn stalk. The biological bacteria include solubilizing bacteria, potassium bacteria, Bacillus, Actinomycetes strain 5406 or Saccharomycetes. The trace elements include e.g. magnesium.    USE - The bio-organic fertilizer is useful for tobacco (claimed); cereals and oils-bearing crops, fruit and vegetables, and tea cash crops.    ADVANTAGE - The bio-organic fertilizer has strong specificity, high efficiency, can greatly increase the quality and yield of tobacco leaves up to 10%, and simultaneously nutrients; can be administered top dressing spread or watering by spraying on foliar.    DETAILED DESCRIPTION - Bio-organic fertilizer comprises 1-3 par urea, 1-3 pts. wt. diammonium phosphate, 2-6 pts. wt. potassium sulfate, 40-60 pts. wt. crop stalks, 5-15 pts. wt. fermented rapeseed, 5-15 pts. wt. soybean, 5-15 pts. wt. sesame meal, 5-15 pts. wt. humic acid, 0.5-1.5 pts. wt. biological bacteria and 0.5-1.5 pts. wt. trace elements. The crop straw include rice straw, tobacco stem or corn stalk. The biological bacteria include solubilizing bacteria, potassium bacteria, Bacillus, Actinomycetes strain 5406 or Saccharomycetes. The trace elements include calcium, magnesium, sulfur, iron, zinc, boron, manganese, copper, chlorine, molybdenum or nickel. An INDEPENDENT CLAIM is also included for preparing bio-organic fertilizer, comprising (i) crushing crop stalks; (ii) taking all the above mentioned materials; (iii) crushing all the above mentioned materials, uniformly stirring, and carrying out biological fermentation, to obtain a mixture; (iv) carrying out high speed centrifugal and drying process of mixed material under humidity conditions, preparing composite matrix using a disc-shaped granulator, and centrifuging and drying for second time, and sieving, to obtain the final product.