NOVELTY - Fertilizer and two-stage fermentation method for production of fertilizer, are claimed. The fertilizer comprises 55-65 parts mass bran, 18-25 parts mass humic acid, 10-18 parts mass fulvic acid, 16-22 parts mass humic acid, 30-50 parts mass molasses, 100-138 parts mass sugar cane filter mud, 20-30 parts mass Azotobacter species, 35-65 parts mass bentonite, 25-45 parts mass enzymes, and 20-25 parts mass bacteria.    USE - As fertilizer.    ADVANTAGE - The microbial fertilizer provides high yield and has good quality, and reduces the environmental pollution and improves the soil environment. The preparation method is simple.    DETAILED DESCRIPTION - Fertilizer and two-stage fermentation method for production of fertilizer, are claimed. The fertilizer comprises 55-65 parts mass bran, 18-25 parts mass humic acid, 10-18 parts mass fulvic acid, 16-22 parts mass humic acid, 30-50 parts mass molasses, 100-138 parts mass sugar cane filter mud, 20-30 parts mass Azotobacter species, 35-65 parts mass bentonite, 25-45 parts mass enzymes, and 20-25 parts mass bacteria. The method involves (a) (i) mixing silicon hydroxyapatite, attapulgite, hydrotalcite, montmorillonite, titanium dioxide, calcite and kaolin in a mass ratio of 35-45:10-15:10-15:8-10:8-10:7-8:5-7, adding 230 parts mass dimethyl sulfoxide (DMSO) and 50 parts mass methanol in the mixed solution, stirring at 65 degrees C for 60 hours, filtering and washing with ethanol at 60 degrees C for 3 times to remove excess dimethyl sulfoxide (DMSO), placing in a vacuum oven for 24 hours at 60 degrees C, drying, grinding and sieving to obtain a modified compound, (ii) mixing 1 part mass modified compound, 15 parts mass potassium acetate and 25 parts mass distilled water at 50 degrees C and stirring for 10 hours at a temperature of 30 degrees C, ultrasonically dispersing at electric power of 250-350 W for 3.5-4 hours, filtering and washing three times with distilled water, vacuum drying at 80 degrees C for 24 hours, grinding and sieving to obtain a secondary-modified compound, and (iii) processing at 600 W and 90 degrees C for 60 minutes, and stirring with a mechanical stirrer at 1200 revolutions per minutes for 60 minutes to obtain fertilizer, or (b) (i) culturing bacteria in enzyme bran culture medium at room temperature, drying until the moisture content is 10%, and obtaining culture having viable count of 100-200 billion/g, (ii) mixing molasses, sugar cane filter mud, nano-release carrier and bentonite, uniformly stirring at 50-55 revolutions per minute, and mixing at 20-35 degrees C, (iii) using the mixture as seed culture medium, regulating the pH to 6.5, inoculating Azotobacter species, incubating at 30 degrees C for 5 hours to obtain seed culture, inoculating 8% inoculum in sterile large culture medium and culturing at 30 degrees C for 5 hours, (iv) subjecting to secondary fermentation by mixing nitrogen-fixing species, black humic acid, humic acid and fulvic acid, regulating the pH to be 8, and performing shade fermentation at 70-100 degrees C for 50 hours, (v) performing cell collection by centrifugation, (vi) sterilizing at 100-120 degrees C for 3-4 hours, and (vii) subjecting to granulation and drying at 140 degrees C for 25 minutes.