Where is the origin of the "underground apple" potato? What are the growth conditions?

Potatoes, also known as potatoes, potato, etc., whether in Western food or in Chinese food occupy an important position, popular with people. So where does the potato come from? What are the growth conditions? What are the growth cycles?

Where are the potatoes grown?

Potato in China is mainly produced in northern China. The main producing areas of potato in China are Dingxi City of Gansu Province, Guyuan City of Ningxia, Southwest China, Inner Mongolia and Northeast China. Dingxi City of Gansu Province has become one of the best suitable planting areas for potato in China and even in the world due to its unique geographical environment and natural conditions. It has become one of the three main potato producing areas in China, the largest virus-free seed potato breeding base in China, and an important commercial potato production base and potato product processing base in China. Known as "China's Potato Town", it provides a large number of potatoes to the whole country every year.

2. Growing conditions of potato

Potato has high yield, rich nutrition and strong adaptability to the environment. It is now spread all over the world. Tropical and subtropical countries can also cultivate and obtain high yield even in winter or cool season. It likes cold. Its underground tuber formation and growth need loose, breathable, cool and moist soil environment. The optimum temperature for tuber growth is 16-18 ° C. When the local temperature is higher than 25 ° C, the tuber stops growing. The optimum temperature for stem and leaf growth is 15-25 ° C. When it exceeds 39 ° C, it stops growing.

3. Potato growth cycle

1. Dormancy period

The tuber dormancy begins at the moment when the stolon tip stops polar growth and the tuber begins to expand. The length of time is related to the storage of the tuber, whether it can emerge in time after sowing, and thus to the yield.

2, germination period

The germination period is the second stage of potato growth. The germination period will carry out the growth of the first section of the main stem. The growth center of the germination period lies in the elongation of the bud, the root and the formation of the stolon. Nutrition and water are mainly supplied by the seed potato according to the order of stem, leaf and root. The growth speed and quality are subject to the environmental conditions required for seed potato and germination.

3. Seedling stage

Potato from emergence to the sixth leaf or eighth leaf flattening, that is, the completion of a leaf order growth, known as "tuanshu","tuanshu" is the second growth of the main stem, for the seedling stage of potato, seedling stage after a short time, whether spring or autumn only a short half month, seedling stage is the key stage of plant survival.

4. Growth period

The main stem begins to rise sharply, the main stem and leaves are all built up, branches and branches expand, the root system continues to expand, the tuber expands to the size of pigeon egg, and there is a growth center transition stage in the growth stage.

5. Tuber stage

After the completion of the potato growth stage, it enters the tuber growth stage, during which the stem and leaf growth decreases day by day, the basal leaves begin to turn yellow and wither, the organic nutrients of each part of the plant are continuously transported to the tuber, and the tuber expands rapidly, especially in the 10 days after the flowering stage. The length of the tuber growth stage is subject to climatic conditions, diseases and variety maturity, etc., generally 30-50 days.

The above is the introduction of potato in the small series of soil flow net, hoping to help you grow households!