How to reduce the decay of sweet potato storage caused by low temperature

The storage time of sweet potatoes in the northern region is as long as six months. The external climate changes are large. The tubers themselves still have respiration and various physiological and biochemical changes, and they are easily rotted and deteriorated. The main cause of decay of the tubers during storage is low temperature. The low-temperature hazard during storage is mainly in the middle of storage, that is, 20 days after the sweet potato enters the pit, and at the beginning of the second year in early February. At this time, the temperature is low. At the same time, the respiration of the potato block weakens as the temperature decreases, and the heat released is reduced, so the cellar temperature decreases. , vulnerable to cold damage. Closed cellar, canopy and other measures can be used to keep warm and cold, so that cellar temperature of not less than 10 °C, preferably controlled between 12 ~ 14 °C. If the temperature rises in the late storage period, it is necessary to open the ventilating ventilating room in time to remove the bad potatoes in time.