Potatoes are grown underground, in the soil, usually during tuber formation. After passing the growing period, it will enter the tuber growing and tubering period. At this time, the stem and leaves will continue to decrease, and the bottom leaves will gradually turn yellow and fall off, and the nutrients in the plant will be concentrated, directly for the growth of tubers, especially after ten days of flowering, it will rapidly expand.
There is a large area of planting in many countries in the world, especially in China, which is the largest, mainly in southwest, northwest, northeast, and Inner Mongolia. The planting area in southwest is relatively large. Dingxi City in Gansu Province is the most suitable for planting potatoes, known as the "potato town".
Potatoes are round and smooth, with brown or purplish brown skin. Its diameter is about 1.5cm, and the seed is kidney shaped and yellow. It has many varieties, skin color is not the same, color potatoes have become a feature of food development, color red, black, purple and so on.
