How to store sweet potatoes in buildings

The original name of sweet potato is sweet potato (scientific name: sweet potato (L.) Lam. ), also known as sweet potato, sweet potato, octagonal taro, sweet potato, sweet potato, Zhu potato, sweet potato and so on. , belonging to the genus Panicum, Convolvulaceae, whose leaves are usually oval, 4- 13 cm long and wide. Sweet potato is rich in protein, starch, pectin, cellulose, amino acids, vitamins and various minerals, and has the reputation of "longevity food". The sugar content reached 15%-20%. Has anticancer, heart protecting, emphysema and diabetes preventing, and weight reducing effects. Also known as sweet potato.

Store and preserve

Before the first frost comes, sweet potatoes need to be dug out of the ground. Try not to damage its skin when digging. Stored in a previously dug cellar. The best soil around the cellar is loess with a depth of about 3-5 meters. Put the sweet potatoes neatly in the cellar and sprinkle some preservatives at last. The mouth of the cellar is covered with hay.

1. After the temperature rises in spring, in calm and sunny weather, when the temperature exceeds 12℃ at noon, the concentration of miscellaneous bacteria in the cellar can be reduced, so as to prevent excessive humidity in the cellar from causing mildew on the damaged skin of potato pieces and affecting the appearance quality of goods.

2. The temperature in the cellar is always 1 1- 13℃ and the relative humidity is 85%-90%. If the cellar temperature exceeds 15℃, properly open the vent to release the temperature. However, it should be noted that the temperature in spring is often unstable, and there will be snowfall and low temperature weather from some years to April. Especially in potato pits with poor thermal insulation performance, we must not be careless. Once the cellar temperature drops, immediately cover the vent for thermal insulation, and use heating facilities for proper heating if necessary.

3. When the humidity in the cellar is low, water should be added to the cellar pool or wet grass curtains should be laid on the walkway to increase the air humidity in the cellar.

Four, found that commercial sweet potato diseases have spread in the cellar, immediately out of the cellar sales, in order to reduce disease losses.

5. After taking seed potatoes in spring, the sweet potato seedlings are prepared to be preserved for an extended period. Attention should be paid to strengthening the temperature and humidity management, that is, the highest cellar temperature should not exceed 65438 05℃ and the relative humidity should be controlled at 65%-90%. After the weather gets hot, we should also pay attention to the ventilation of the cellar. For long-term sealed potato pits with a large number of rotten potato pieces, the ventilation vents should be opened in advance before entering the pits, and the pits can only be entered after the safety is confirmed, so as to avoid the managers from suffocation due to lack of oxygen.