Agricultural power machinery provides power to various agricultural machines and facilities. Agricultural power machinery mainly includes internal combustion engines and tractors equipped with internal combustion engines, as well as electric motors, wind turbines, water turbines, and various small generator sets. Diesel engines have advantages such as high thermal efficiency, good fuel economy, reliable operation, and good fire safety, and are the most widely used in agricultural internal combustion engines and tractors. Gasoline engines are characterized by their light weight, good low-temperature starting performance, and smooth operation, and are mostly used in small agricultural machinery, such as rice transplanters, backpack motorized plant protection machinery, and tea pickers. Depending on the local fuel supply, gas engines using natural gas, associated petroleum gas, liquefied petroleum gas, and producer gas can also be used as fuel. Diesel and gasoline engines can be modified to burn gaseous fuels such as coal gas, or converted into dual-fuel internal combustion engines that burn coal gas but are ignited by diesel fuel, serving as agricultural power machinery.
Electric motors are mostly used to drive various agricultural machinery for stationary or indoor operations, such as agricultural product processing machinery, water pumps, and various machines operating in greenhouses, warehouses, and livestock sheds. In areas with hydropower or wind power resources, using wind turbines and water turbines to drive various stationary machinery can save petroleum fuel, and wind turbines equipped with water lifting devices can provide water for people and livestock in grassland pastoral areas. Small generator sets composed of internal combustion engines, wind turbines, or water turbines paired with generators provide electricity for agricultural production and rural life in remote areas. Solar energy and biogas produced from rural waste materials can also provide electricity through solar power generation devices, biogas generator sets, and biogas-diesel dual-fuel generator sets.
