Cold potato, Leguminosae bean potato is a thick twining herbaceous vine with thick roots, oblate balls and whiskers on the surface; The leaves are feather-shaped, with veins on them and dark green; Flowers are small, polygonal, with many petals, and the corolla is light purple or reddish; The fruit is large with purple or light brown skin; Flowering from April to June; The fruiting period is July-August.
Cold potato is native to southern China, Mexico, Central and North America, and China is widely cultivated in Guizhou, Sichuan, Hunan and Taiwan Province. Cold potato likes warm and sunny environment, likes high temperature and is not cold-resistant, and has strict requirements on soil. It requires sandy loam with deep, loose soil layer and good drainage, and is not suitable for planting in soil with poor adhesion and permeability. The propagation methods of potato mainly include cutting propagation and tuber propagation, and it is generally easier to use tuber propagation.
Preservation method of cold potato
1, if you buy too many cold potatoes, you can put them in a fresh-keeping bag first, and then put them in the refrigerator for storage. It is best not to soak them in water during storage, because in this process, the cold potatoes are stained with some water, which is easy to rot during storage.
2. You can also wrap the cold potato in a newspaper and put it in a bag, and hang it in a cool, dry and ventilated place, which is not only convenient to store, but also can prolong the storage time.
3. For the south, people can put the cold potatoes in the cellar for preservation, so that a large number of cold potatoes can be preserved. In this process, we must pay attention to two problems, one is the cellar temperature, and the other is the cellar ventilation. The above two problems must be solved before the cold potato can be stored in the cellar.