What happened after the Han Dynasty?

After the Han Dynasty, htere was not much further development in the agriculture technology of China. Shortly after the Han Dynasty, due to the consequences of wars, agriculture technology in China had once regressed.

Nowadays, most of the farmers in China are still using old farming methods to grow crops in order to earn a living.
 
 

[Agriculture]  [Ancient Times]  [The Shang Dynasty]  [The Zhou Dynasty]  [The Han Dynasty]