Fertilizer for repairing, preventing and controlling soil degradation and preparing method thereof

The invention relates to the technical field of fertilizer, in particular to fertilizer for repairing, preventing and controlling soil degradation and a preparing method thereof. The fertilizer comprises, 76-95% of active ingredients, 32.5-41.7% of nitrogen phosphorus potassium, 24.5-41% of organic matter, 11.75-19.3% of humic acid and 1-2% of amino acid. The fertilizer can supplement the effective organic matter, the humic acid and nutrient substances with water-soluble activity micro-molecules for soil, regulate the carbon and nitrogen ratio of the soil, activate a soil eco-system, regulate micro-ecological balance of the soil, and repair soil colloid, a soil enzyme system and a soil granular structure; meanwhile, water is stored, the fertilizer is preserved, soil acid-base is relieved and balanced, soil fertility is fostered, and soil degradation is prevented and controlled. The preparing method for the fertilizer for repairing, preventing and controlling soil degradation is easy to operate, saves manpower and material resources, and is high in manipulability, and beneficial for industrial production.