1.Steam power stage: In 1868, the British company Garrett and Sons introduced the world's first steam-powered agricultural tractor [2].
2.Innovation in internal combustion engines: In 1892, German-American farmer J. Florich developed a gasoline engine-driven tractor, significantly improving efficiency and portability [2].
3.Globalization and popularization: In the late 1940s, tractors were widely used in North America, Western Europe, Australia, and other regions to replace livestock as the primary driving force on farms [2].
4.Introduction and imitation in China: Western technology was introduced in the early 20th century, and in 1950, Dalian Xiyi Machinery Factory imitated and produced China's first agricultural wheeled tractor
