During the Spring and Autumn Period, the farmers used better fertilizers,
such as ash and the manure of men and animals, to improve the soil. In
those days, people began to use tools made of iron. With the help of cattle,
less time and labour were spent. Moreover, people made use of the principle
of lever to create some simple tools such as jie gao and luk lou. These
could help them obtain water from wells to irrigate their farmlands.
[Agriculture] [Ancient
Times] [The Shang Dynasty] [The
Han Dynasty] [What happened after
the Han Dynasty?]