NOVELTY - Microbial fertilizer, comprises 4-6 pts. wt. Bacillus subtilis, 6-9 pts. wt. enzyme microorganism, 1200-1400 pts. wt. waste liquor precipitate, 380-420 pts. wt. inorganic fertilizer, 50-60 pts. wt. trace element, 25-32 pts. wt. adhesive, 0.8-1 pts. wt. stabilizing agent, 24-36 pts. wt. pesticide, 2-4 pts. wt. sterilizing agent, and 0.6-1 pts. wt. growth regulator.    USE - The microbial fertilizer is useful for preventing downy mildew of spinach (claimed).    ADVANTAGE - The microbial fertilizer reduces incidence of the downy mildew of spinach, improves better growth conditions of spinach with large leaves, greener color and less spots, and improves yield of the spinach. The pesticide and a bit of sterilizing agent are added to the microbial fertilizer, such that insect pests and common fungal diseases in the growing period are all effectively controlled.    DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of the fertilizer, which involves (a) drying the waste liquor precipitate to 55-65%, or drying the waste liquor precipitate, until moisture content of the precipitate reaches 15-20%, crushing dried precipitate, adding 3-5% crushed powder to precipitate lime into bag and stirring mixture uniformly bag, and stacking the bag for not less than 2 days, until pH of the mixture reaches 6-7.5, (b) mixing and stirring the stacked mixture, and performing aerobic high temperature solid state open fermentation at 60-70 degrees C for 7-10 days, (c) adding remainder above-mentioned raw materials, except B.subtilis to fermented mixture, and stirring the mixture uniformly, and (d) adding B.subtilis to obtained mixture, drying the mixture using fluidized bed at 80 degrees C, until moisture water content of the mixture reaches 10-15%, crushing and sieving the mixture to 60 or 80 mesh size, feeding crushed mixture into cylinder pelletizer, heating the mixture at 50-60 degrees C in roller, where the roller continuously rotates the mixture to obtain mixture to ball shape, transferring the mixture ball to the drying roller, hot air drying the ball shape mixture, cooling, screening the ball shape mixture, and packing to obtain product.