Store sweet potatoes at home in winter, put them neatly in the cellar, and finally sprinkle some preservatives, and cover the cellar with a haystack.

After the temperature rises in spring, at noon in calm and warm weather, when the temperature exceeds 12℃, short-term ventilation can reduce the concentration of miscellaneous bacteria in the cellar and prevent the excessive humidity in the cellar from causing mildew at the skin damage of potato pieces.

Especially for potato pits with poor thermal insulation performance, never be paralyzed. Once the pit temperature drops, immediately cover the vent for thermal insulation, and use heating facilities to properly heat it if necessary. When the humidity in the cellar is low, water should be added to the pit or the walkway should be paved with wet grass curtains to increase the air humidity in the cellar.

Extended information:

Growth period

The growth period of spring potato is 16-2 days, and that of summer potato is about 11-12 days. According to the growth characteristics of red spring in the field and its relationship with climatic conditions, it can be roughly divided into three growth periods:

1. Early stage: spring potato lasts about 6-7 days. At this stage, the growth of stems and leaves is slow, and the root system develops rapidly, which is mainly the period of growing fiber roots.

2. Mid-term: Spring potato lasts about 5 days, and summer potato lasts about 3 days. At this stage, the tuberous roots expand slowly and the stems and leaves grow fast, which is a period of mainly growing stems and leaves.

3. Late stage: spring potato is after late August, and summer potato is after early September. This period is the main period of root swelling.