The development of primitive agriculture:

1, crop cultivation: About 10000 years ago, the earliest cultivated crops appeared in China. The ancestors in the middle and lower reaches of the Yangtze River began to plant rice, and the ancestors in the northern region began to plant millet.

At present, the earliest cultivated rice, millet and millet in the world are all in China.

2. Farming methods: Primitive agriculture has developed from slash-and-burn to tools such as thunder and lightning, which has improved the level of agricultural production.

3. Important signs: the emergence of planting and animal husbandry and the development of collecting and grinding stone tools are important signs of the rise and development of primitive agriculture.

4. Historical significance: Primitive agriculture laid an important material foundation for the formation of ancient civilization.