2. China's records about potatoes first appeared in the late Ming Dynasty. Potatoes were shipped to China during the Wanli period of the Ming Dynasty. At that time, they were rare, and only dignitaries could enjoy them. Thousands of ordinary people in Qian Qian have no such luck to eat.

3. During the Ming and Qing Dynasties, potato planting techniques were improved, and the output was continuously improved, and it began to move closer to the dining table of ordinary people's homes. Especially after the establishment of the Qing dynasty, the government banned the vegetable supply system of the Ming royal family. Supplying vegetables to the royal family is considered that vegetable farmers have turned to ordinary farmers, and the seeds and cultivation methods of various crops are no longer confidential. As a result, potatoes spread all over the country on a large scale.