NOVELTY - Organic fertilizer comprises (in wt.%) either: thio sulfonic acid ester disinfectant (0.1-20) and organic material (80-90), or thio sulfonic acid ester disinfectant (0.1-20), organic material (60-90), nitrogen fertilizer (1-20), phosphate fertilizer (1-20), potash fertilizer (1-20), trace element (0.1-5) and an intermediate element(0.1-5). The organic material is the organic material of fermentation and decomposition process, and thio sulfonic acid ester disinfectant is A allicin (sic), ethylicin, C allicin (sic) and/or allicin.    USE - The fertilizer is useful for eliminating bacteria in the soil, controlling blight disease, damping-off disease, root rot, Fusarium wilt and other soil-borne diseases.    ADVANTAGE - The fertilizer: stimulates crop growth and development, promotes root growth of seedlings, reduces the occurrence of diseases during growth period, overcomes the nutritional deficiencies of single organic fertilizers, the occurrence of soil-borne diseases and the limitation of continuous cropping and planting, can rapidly supplement nutrition, ensures crop rational distribution, reduces the labor intensity of farmers, saves the production cost, and reduces pesticide application, crop injury and livestock poisoning, and environmental pollution.    DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing the organic fertilizer, comprising either: (a) pre-treating the organic material by collecting biogas residue, monosodium glutamate residue, lees, mushroom residue and/or furfural residue materials, uniformly mixing with weathered coal, chicken manure, cow dung, grassland carbon and crop straw, carrying out solid fermentation in a fermentation tank at 60 degrees C, and naturally drying the fermented material under shade or drying at low temperature; (b) uniformly mixing the pre-treated organic material, nitrogenous fertilizer, phosphate fertilizer, potash fertilizer, trace element and intermediate element, and crushing; (c) transferring the treated materials obtained in step (b) into a rotary mixer, and spraying thio sulfonic acid ester disinfectant; and (d) packaging in a packaging machine, weighing each time, placing inside a bag, sealing the bag opening using a sealing machine; or step (a) as mentioned above; (b) mixing organic and inorganic materials, granulating using extrusion granulation method or roller granulation method, drying using a drying machine and sieving using sieving device to obtain the organic fertilizer particles; (c) spraying thio sulfonic acid ester disinfectant to organic fertilizer particle using a pharmacy spraying device according to weight ratio of 0.1-20%; and (d) packaging in a packaging machine, weighing each time, placing inside a bag, sealing the bag opening using a sealing machine.