What contribution has China's primitive agriculture made to the world?

1. China is the first country to grow rice in the world, and the popularization of rice cultivation feeds a quarter of the world's population. With the development and spread of the world economy, rice from China has spread to Southeast Asia, South Asia, East Asia, Europe and other places.

2. China is a country that used cows and iron plows very early, and China has the earliest iron plow, which also proves the contribution of early China society to farming civilization;

3. China was the first country to pump water from paddy fields by power (first by manpower, then by animal power);

4. China's agriculture has earlier agricultural books to guide agricultural production;

The working people in our country created the lunar calendar, which laid a good time frame for agricultural production.