TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Method: The method involves (a) adding water in fermentation tank and fermenting the mixture at 60-75 degrees C, preferably 70 degrees C, (b) adding fresh filter mud to the fermented mixture and uniformly stirring the mixture, where the filter mud, water and fermented microbial inoculum weight ratio a of 120-160:300-500:1-3, preferably 140:400:2, (c) filtering the fermented liquid at 60-80 degrees C, preferably 70 degrees C for 6-9 days, preferably 8 days and stirring the filtrate, (d) standing the filtrate at normal temperature for 6-8 hours, preferably 8 hours, collecting fermented liquid and removing precipitate, (e) concentrating the fermented liquid at 60-80 degrees C, preferably 75 degrees C to a weight ratio of 1/8-1/12, preferably 1/10 at normal temperature, regulating the concentrate to pH 7, collecting filtrate, mixing B.cereus, Candida and nitrogen fixing Rhizobium in a weight ratio of 1:1.3:1-3, preferably 1:2:2, mixing macroelement fertilizer comprising urea, phosphoric acid and potassium chloride in a weight ratio of 1:1-2:1-2, preferably 1:1:2, adding medium-weight element fertilizer comprising calcium sulfate and magnesium sulfate in a weight ratio of 1:1-3, preferably 1:3, adding trace element fertilizer comprising zinc sulfate, manganese sulfate and sodium in a weight ratio of 1:1-3:1-3, preferably 1:1:1, adding wetting osmotic agent comprising osmotic agent T, trisiloxane polyethenoxy ether and methyl oleoyl taurate in a weight ratio of 1:1-2:1-2, preferably 1:1:1, or zinc sulfate, manganese sulfate, zinc chloride, copper sulfate, ammonium molybdate, sodium and their mixtures, where the method involves adding 40-60 pts., preferably 50 pts. or 5-20 pts. filter mud fermented residue, 10-15 pts., preferably 12 pts. or 8-20 pts. macronutrients fat, 3-5 pts., preferably 4 pts. or 2-6 pts. fertilizer elements, and 2-4 pts., and preferably 3 pts. or 1-5 pts. trace element fertilizer. In the above-mentioned method (M2), the fertilizer is sprayed at a dose of 5 kg for 10 days after diluting for 20 times. ACTIVITY - Fertilizer.