When was corn introduced into China?

Corn was introduced to China in the 30th year of Jiajing in Ming Dynasty.

Thirty years after Jiajing in Ming Dynasty, corn was gradually called corn, corn, bonzi, jade, corn and pearl rice in the process of spreading to all parts of China. Compared with the traditional dry land crops such as millet, millet and wheat in China, corn not only has high yield, but also has strong adaptability to the environment. Therefore, it was accepted by the people as soon as it was introduced, which not only replaced the status of dry land crops such as millet and quickly popularized it throughout the country, but also changed the planting structure of traditional food crops.

In the 30th year of Jiajing in Ming Dynasty (155 1), the earliest written records of corn in China appeared in Xiangcheng County Records. Four years later, in the thirty-fourth year of Jiajing (1555), the corn presented by Yunnan Tusi passed through Gongxian County, Henan Province on the way to Beijing, and was recorded in Gongxian Records.

Corn planting technology

1. Wide and narrow row planting: Wide row planting is the essence of the rapid development of agriculture and animal husbandry. This planting method can promote maize plants to digest and absorb nutrients given by the sun to the maximum extent during photosynthesis.

2. Equal spacing planting: It takes three months for corn to grow to perfection. Generally, seeds are sown in the planting mire, with an average of three corn seeds per pit. When the growth and development of corn seedlings are within 2~3cm, some relatively dense and weak corn seedlings are pulled out, leaving corn seedlings with better growth and development.