The invention provides a microbial
fertilizer for improving
saline alkali soil. The microbial
fertilizer comprises the following raw materials in parts by weight: 45-55 parts of turf, 25-35 parts of Angel
yeast residues, 5-15 parts of monoammonium
phosphate, 5-15 parts of
ammonium sulfate and 1-3 parts of a complex
microbial inoculant. According to the microbial
fertilizer provided by the invention, the microbial
flora is in mutual promotion with organic matters and inorganic matters, the components supplement one another, the effective living
bacteria count is not less than 50million per
gram, the content of the organic matters is not less than 55 percent, the total
nutrient is not less than 11 percent, the content of
ammonium nitrogen is not less than 4 percent, the content of P2O5 is not less than 4 percent, the content of K2O is not less than 3 percent, and the pH value is 5.5-6.0. Under the co-actions of the components, the effects of rapidly reducing the
soil salinity and
alkalinity and increasing the content of organic matters, available
phosphorus and
ammonium nitrogen are achieved, and the conditions that the granular structure of the soil is poor, the soil permeability is reduced and the activity of the microbial
flora is inhibited are improved.