The main traditional farming methods in China are

Test Analysis: This question mainly examines students' ability to analyze and understand the main farming methods in ancient China. During the Spring and Autumn Period and the Warring States Period, with the gradual popularization and application of ironware and Niu Geng, in the Han Dynasty, the combined plough and two-person one-cow plough method appeared and extended to the Pearl River basin. After the Han Dynasty, Niu Geng with iron plough gradually became the main farming method of ancient traditional agriculture in China. So you should choose C.