How to put sweet potatoes in stock?

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 cellar mouth 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.

Second,

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, from some years to April.

There will be snow and mild weather. 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.

Five,

In spring, we should pay attention to the management of temperature and humidity, that is, the highest cellar temperature should not exceed 65438 05℃ and the relative humidity should be controlled at 65%-90%. When the weather gets hot, you should also pay attention to the cellar.

Internal ventilation. For long-term sealed potato pits with a large number of rotten potato pieces, the ventilation holes 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.

Summary of sweet potato ※

red

Sweet potato was originally called sweet potato (sweet potato)

Lamentations for Jeremiah), commonly known as sweet potato in the south (northeast dialect, red taro, sweet potato, fennel taro, purple potato, sweet potato, Zhu potato, Jin potato, etc. , also known as sweet potato, sweet potato, sweet potato, white taro and so on. Sweet potato belongs to panicum miliaceum of Convolvulaceae, a tubular flower order.

Plant, more than 2 meters long, lying on the ground, usually with elliptic leaves, 4- 13 cm long and 3- 13 cm wide, with pink, white, lavender or purple corolla, bell-shaped or funnel-shaped, 3-4 cm long and capsules.

The fruit is ovoid or oblate, with false diaphragm, divided into 4 cells, with underground tuberous roots and spindle-shaped tuberous roots, and the skin is yellowish or purplish red.

All kinds of sweet potatoes (6 pieces)

Sweet potato tuber is rich in protein, starch, pectin, cellulose, amino acids, vitamins and various minerals, and the sugar content is 1.5%-5%.

Sweet potato tubers contain active ingredients, which have the effects of anti-cancer, heart protection, prevention of emphysema, diabetes, weight loss, beauty and so on, and have the reputation of "longevity food". In addition, the root tuber can be used for sugar, wine and alcohol, starch and pectin. The prepared starch can be made into vermicelli and vermicelli, and delicious dishes can be made.

Nutritional value ※

red

Potato tuber contains 60%-80% water, 10%-30% starch, about 5% sugar and a small amount of protein, oil, cellulose, hemicellulose, pectin, ash and so on. If you fold 2.5 kilograms of fresh sweet potatoes,

Calculated by 0.5Kg grain, the contents of protein and carbohydrate are higher than those of rice and flour except fat, and the composition of protein in sweet potato is reasonable, and the content of essential amino acids is high, especially in whole grains.

Lysine, which is relatively lacking in the product, has a high content in sweet potato. In addition, sweet potato is rich in vitamins (carotene, vitamins A, B, C and E), and its starch is easily absorbed by the human body.