Terrace farming: A technique used in hilly or mountainous areas where steps are carved into the slopes to create flat areas for planting crops, preventing soil erosion.
Champa rice: A drought-resistant strain of rice imported from Vietnam during the Song Dynasty that had a faster growth rate, increasing agricultural productivity.
Irrigation systems: Advanced methods of moving water such as canals, dikes, and waterwheels employed by the Song Dynasty to improve irrigation efficiency and expand arable land.