Method for regulating, preventing and controlling banana wilt by using fertilizer

The invention discloses a method for regulating, preventing and controlling banana wilt by using a fertilizer, and belongs to the technical field of disease control. The invention discloses a method for regulating, preventing and controlling banana wilt by using a fertilizer. The method comprises the following steps: (1) applying a bio-organic fertilizer before banana field planting; (2) applying a compound fertilizer 2-3 months after field planting of the bananas; the compound fertilizer is prepared from the following raw materials in parts by mass: 4 to 5 parts of proline chelate, 18 to 22 parts of urea, 23 to 28 parts of monoammonium phosphate and 25 to 30 parts of potassium sulfate, (3) applying a high-potassium slow-release fertilizer 4-5 months after field planting of the bananas; and (4) performing conventional field management. According to the method, the bio-organic fertilizer is applied before field planting of the bananas, the compound fertilizer is applied 2-3 months after field planting of the b