1, "slash-and-burn"-China is one of the world's agricultural origin centers with independent development and its own system. Seven or eight thousand years ago, China had a fairly developed primitive agriculture.

2 "Digging the field with a stone hoe"-Seven or eight thousand years ago, our ancestors invented the earliest agricultural tool-Lei Geng. The appearance and widespread use of thunder shovel indicates that agriculture in China has entered the stage of "shovel tillage" or "stone hoe tillage".

3. Bronze farm tools-During the Shang and Zhou Dynasties, bronze farm tools appeared. Bronze farm tools are harder and sharper than wood and stone tools, and are only used in a small amount in agricultural production because of their higher price.

4, iron plow Niu Geng-Spring and Autumn Period, iron farm tools came out. During the Warring States Period, the use of iron farm tools was expanded, and it was first popularized in Niu Geng. Since then, Niu Geng with iron plough has gradually become the main farming method of Chinese traditional agriculture.

In the Western Han Dynasty, the combined plough was popularized in Zhao State, and then the plough wall appeared. During the Sui and Tang Dynasties, Qu Yuan Plough appeared in Jiangdong area, and its invention marked the basic stereotype of the traditional walking plow in China. Farming technology-ridge farming in the Spring and Autumn Period and the Warring States Period; Farming and harrowing techniques in Wei, Jin, Southern and Northern Dynasties;

5. The famous water conservancy projects include Dujiangyan in the Warring States Period, Caoqu, Baiqu and Longshou Canal in the Han Dynasty.

6. Irrigation tools were overthrown by Cao Wei; Tube car created in Tang dynasty; High-speed trains appeared in the Song Dynasty; Wind turbines appeared in the Ming and Qing Dynasties.

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