Method for controlling postharvest diseases of tomatoes and storing and keeping fresh by using bacillus amyloliquefaciens

The invention belongs to the field of biological control of postharvest diseases of fruits and vegetables, and relates to a method for controlling, storing and preserving postharvest soft rot of tomatoes by using bacillus amyloliquefaciens FT5. The preservation number of the bacillus amyloliquefaciens FT5 is CCTCC NO: M 2023923, the bacillus amyloliquefaciens FT5 is activated, cultured and centrifuged to obtain thalli, and the thalli are diluted to obtain a bacterial suspension; the method comprises the following steps: punching the surface of a tomato, injecting a bacterial suspension, standing, and injecting a carrot soft rot pectobacterium bacterial suspension with the same volume, so as to effectively control soft rot; or the picked tomatoes are directly soaked in the bacterial suspension and then naturally aired, and the purposes of prevention and treatment of natural rot of the picked tomatoes and storage and preservation can be achieved. By means of treatment of the method, the occurrence of soft rot o