use of fertilizer

crop rotation
use of seedlings
improved irrigation
new types of plows

The above list describes agricultural improvements under the
A.
Sui Dynasty.
B.
Sung Dynasty.
C.
Ming Dynasty.
D.
Yuan Dynasty.

User Icon for Bot GPT 4-o mini Bot GPT 4-o mini answered
7 hours ago

The agricultural improvements listed are associated with the Sung Dynasty (B). The Sung Dynasty, which lasted from 960 to 1279, is known for significant advancements in agriculture, including innovations in farming techniques and tools, as well as improvements in irrigation practices and crop cultivation methods.