NOVELTY - Producing organic fertilizer, comprises: selecting organic materials, composting the organic materials, adding selected external microorganisms into the organic materials being composted to enhance the composting process and controlling the microbial activities; and controlling and adjusting parameters of the organic materials being composted to achieve targeted values of the parameters for the resulting organic fertilizer by using mathematical formulations as an aid.    USE - The method is useful for producing organic fertilizer. No biological data given.    ADVANTAGE - The method is less-time consuming and provides organic fertilizer with improved quality and in an industrial manner.    DETAILED DESCRIPTION - Producing organic fertilizer, comprises: selecting organic materials, composting the organic materials, adding selected external microorganisms into the organic materials being composted to enhance the composting process and controlling the microbial activities; and controlling and adjusting parameters of the organic materials being composted to achieve targeted values of the parameters for the resulting organic fertilizer by using mathematical formulations as an aid, where the selected external microorganisms are those which individually or in combination have the capabilities to (i) hasten completion of the composting process, (ii) suppress growth of pathogenic bacteria, (iii) control flies population, (iv) remove nuisance odor, (v) nourish soil and plant growth, (vi) release nutrients from soil, and (vii) increase population of other indigenous beneficial microorganisms in the soil, and the method further comprises conducting laboratory analyses of compositions and properties of organic materials and selection of the organic materials to compost, premixing the selected organic materials to be composted, inoculating the compost with the selected external beneficial microorganisms, mixing the compost heap thoroughly and piling up of the compost heap, conducting laboratory analyses of samples of the constructed compost pile, turning of the compost pile and adjusting the temperature and moisture content of the compost pile to maintain optimum temperature and moisture content, laboratory analyzing samples of the compost pile, and packaging. An INDEPENDENT CLAIM is included for the organic fertilizer obtained by the method.