Smart tractor with BeiDou navigation system assists farmers in China's Ningxia

​A self-driving tractor works to help farmers plant vegetables in the field at Tawan Village of Wuzhong City, northwest China's Ningxia Hui Autonomous Region, April 17, 2018. The smart tractor, with application of the BeiDou navigation system, assists local farmers in achieving efficient and modernized agricultural work. [Photo: Xinhua]