Method for promoting wound healing of mechanical damages of sweet potatoes

The invention belongs to the technical field of treatment of potato wounds and provides a method for promoting wound healing of mechanical damages of sweet potatoes in order to solve the problems that the preservation cost of the sweet potatoes at high temperature is increased, the damaged sweet potatoes cannot be preserved and are processed at a low price as 'waste potatoes', low-temperature preservation of the sweet potatoes is not beneficial for formation of healing tissues of potato tubers, the damaged sweet potatoes continue to rot and the like. The method comprises the following steps: cutting off a damaged surface by using a disinfected cutting knife so as to expose a new section of a potato tuber; dipping the cut new section in lime powder for 3-5 seconds so that the new section is fully adhered with the lime powder; encasing the treated potato tubers and storing in a crypt. The lime powder has a certain disinfection effect on the wounds and an effect of promoting wound healing, and can be used for preventing subsequent rotting of the damaged potato tubers. The method disclosed by the invention is simple and easy to learn, high in operability and low in cost and is a practical method for treating the damage wounds of the sweet potatoes.