NOVELTY - Organic fertilizer comprises crop straw, ammonium chloride, castor powder, limestone powder, blast furnace slag, potassium sulfate, calcium-magnesium-phosphate fertilizer, ammonium bicarbonate, EM (RTM: Beneficial active microorganism) microbial inoculum, additive and water. The additive comprises sodium dodecyl sulfate, medical stone powder, vinyl acetate, ethanol, N,N'-methylenebis(acrylamide) and water.    USE - The organic fertilizer is useful for mulberry cultivation (claimed).    ADVANTAGE - The fertilizer improves the soil quality, and is environmentally friendly.    DETAILED DESCRIPTION - Organic fertilizer comprises 60-80 pts. wt. crop straw, 6-10 pts. wt. ammonium chloride, 35-50 pts. wt. castor powder, 4-7 pts. wt. limestone powder, 10-14 pts. wt. blast furnace slag, 8-10 pts. wt. potassium sulfate, 12-16 pts. wt. calcium-magnesium-phosphate fertilizer, 14-20 pts. wt. ammonium bicarbonate, 3-4 pts. wt. EM (RTM: Beneficial active microorganism) microbial inoculum, 3-5 pts. wt. additive and specific amount of water. The additive comprises 1-2 pts. wt. sodium dodecyl sulfate, 6-8 pts. wt. medical stone powder, 7-10 pts. wt. vinyl acetate, 6-9 pts. wt. ethanol, 2-3 pts. wt. N,N'-methylenebis(acrylamide) and 30 pts. wt. water. Preparing the additive comprises diluting ethanol in a reactor by mixing with water, adding vinyl acetate and N,N'-methylenebis(acrylamide), stirring at the speed of 150-200 revolutions/minute for 5-10 minutes, adding sequentially sodium dodecyl sulfate and medical stone powder and stirring uniformly at the speed of 250-400 revolutions/minute for 0.5-1 hours to obtain emulsion of product. An INDEPENDENT CLAIM is also included for preparing the fertilizer, comprising (i) crushing crop straw uniformly with straw crusher into 3-4 cm fragment length and width, adding 2-3 times the amount of water, adding ammonium chloride, dissolving by stirring, carrying out amination treatment at 32-36 degrees C by soaking in ambient conditions for 14-16 days and filtering to remove excess of water from the residue, (ii) placing the residue in the microwave processing machine and adjusting the microwave power to 230-250 W and the microwave radiation time to 6-10 minutes, (iii) mixing castor powder, limestone powder and blast furnace slag with the step (ii) treated straw residue, spraying 10 times diluted EM (RTM: Beneficial active microorganism) microbial inoculum, adjusting the water content to 60%, mixing and carrying out stack fermentation for 5-8 days, and (iv) carrying out secondary crushing of the step (iii) fermented material, adding sequentially additive, potassium sulfate, calcium-magnesium-phosphate fertilizer, ammonium bicarbonate and other remaining ingredients, mixing, controlling the moisture content at 20% and granulating.