Pear is one of the fine varieties of pears in China and enjoys a high reputation in the fruit market both at home and abroad. Pear can be stored under normal conditions for 4- 6 months. According to the author's many years of practice, strengthening the management of Yali pear before storage is an effective technical measure to reduce the disease during storage and prolong the storage period of Yali pear. 1. Pre-harvest management: A 300 mg/kg solution of calcium chloride or calcium nitrate should be sprayed for one-half a month before picking pear to increase the calcium content in Yali pear fruit, thereby reducing the incidence of black heart disease during storage. 2. Timely injury-free picking: Pears should be picked early in time. If it is harvested too late, it will result in late aging of the Yali pears during storage, but premature harvesting can also lead to the occurrence of melanosis. The time for early harvest generally does not exceed 3- 4 days of the normal picking period. 3. Pre-storage fruit treatment: After harvesting the pears, first soak them in bamboo baskets for 3 minutes (minutes) at a concentration of 300mg/kg, and remove them in a cool place. Pear is not easy to store because of thin skin, so when selecting single-fruit packaging materials, multi-purpose fresh-keeping packaging paper should be preferred, and tiger skin wax paper can also be used to prevent later-stage dermatosis. 4. Ensure the pre-cooling effect: Regardless of the method used for storage, pre-cooling must be performed in advance. General storage and ventilation (including forced ventilation) storage of fruits, can be used at night for pre-cooling; cold storage, can be pre-cooled at about 10 °C in cold storage 24h (hours), and then stacking Long-term storage. 5. Warehouse temperature requirements: 1 cold storage and cold storage, storage pears should be quickly reduced to 7--10 °C, then reduce 1 °C every 3 days until the temperature is maintained to 0 °C long-term, until the Ya pear out Library. 2 The storage of open cellar, ventilated storage, cave dwelling, and forced ventilation storage is mainly based on natural ventilation to reduce the temperature. After the pears are stored, as long as the temperature in the storage is higher than the temperature outside the storage, ventilation should be performed until the temperature of the reservoir is reduced. 0°C. China Agricultural Network Editor