During the Spring and Autumn Period and the Warring States Period, what was widely used in farmland cultivation, logging and mining.

The widespread use of iron farm tools. During the Spring and Autumn Period and the Warring States Period, with the maturity of pig iron and iron and steel smelting technology, iron farm tools were widely used.

Outstanding performance of agricultural science and technology development in China during the Spring and Autumn Period and the Warring States Period.

1. The widespread use of iron farm tools. During the Spring and Autumn Period and the Warring States Period, with the maturity of pig iron and iron and steel smelting technology, iron farm tools were widely used.

2. Technology popularization in Niu Geng.

3. The tradition of intensive cultivation began to take shape. Many agricultural technologies are close to modern times.

4. Dujiangyan, Zheng Guoqu and other large-scale water conservancy projects have started one after another, and the irrigation level of farmland water conservancy has been greatly improved.

5. The emergence of plant ecology and taxonomy of animals and plants.