TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Components: The Aspergillus niger cultivation broth is prepared by activating preserved Aspergillus niger strains, and fermenting with 6 wt.% culture liquid seed through seed tank to carry out expansion at 28-33 degrees C while stirring at 200-700 revolutions/minute for 10-15 hours; and cooling to 10-15 degrees C at cooling rate of 1-2 degrees C/minute for 15-20 hours, and continuously cooling to 2-5 degrees C at rate of 1-2 degrees C/minute for 20-30 hours while adding 4 wt.% culture liquid seed; and slowly heating to 10-15 degrees C at rate of 1-2 degrees C/minute for 15-20 hours, and increasing temperature to 28-33 degrees C at rate of 1-2 degrees C/minute for 15-20 hours. The Bacillus subtilis cultivation broth is prepared by activating preserved Bacillus subtilis strains, and fermenting with 6 wt.% culture liquid seed through seed tank to carry out expansion at 30-36 degrees C while stirring at 200-700 revolutions/minute for 10-15 hours; and cooling to 10-15 degrees C at cooling rate of 1-2 degrees C/minute for 15-20 hours, and continuously cooling to 2-5 degrees C at rate of 1-2 degrees C/minute for 20-30 hours while adding 4 wt.% culture liquid seed; and slowly heating to 10-15 degrees C at rate of 1-2 degrees C/minute for 15-20 hours, and increasing temperature to 30-36 degrees C at rate of 1-2 degrees C/minute for 15-20 hours. The Lactobacillus plantarum cultivation broth is prepared by activating preserved Lactobacillus plantarum strains, and fermenting with 6 wt.% culture liquid seed through seed tank to carry out expansion at 30-36 degrees C while stirring at 200-700 revolutions/minute for 10-15 hours; and cooling to 10-15 degrees C at cooling rate of 1-2 degrees C/minute for 15-20 hours, and continuously cooling to 2-5 degrees C at rate of 1-2 degrees C/minute for 20-30 hours while adding 4 wt.% culture liquid seed; and slowly heating to 10-15 degrees C at rate of 1-2 degrees C/minute for 15-20 hours, and increasing temperature to 30-36 degrees C at rate of 1-2 degrees C/minute for 15-20 hours. The culture liquid seed used in preparation of Aspergillus niger comprises 50-60 g corn flour, 15-25 g soy flour, 10-15 g bran, 10-15 g fishmeal, 6-10 g calcium chloride, 1-3 g ammonium chloride, 1-2 g disodium hydrogen phosphate, 10-30 g trehalose and 1000 ml pure water, and has pH value of 5-7. The culture liquid seed used in preparation of Lactobacillus plantarum comprises 50-150 g maltodextrin, 50-60 g corn flour, 15- 25 g soybean meal, 30-40 g trehalose, 4-8 g yeast, 1-5 g corn syrup, 1-3 g ammonium sulfate, 1-2 g dipotassium hydrogen phosphate, 1-2 g potassium dihydrogen phosphate, and has pH value of 7-7.2. ACTIVITY - Fertilizer.