Self-driving tractors do farm work in Xinjiang

Aerial photo taken on March 23, 2018 shows a self-driving tractor sowing cotton seeds in the field at Yaha Township of Kuqa County, northwest China's Xinjiang Uygur Autonomous Region. The smart tractor, with automatic navigation system, can do farm work itself including ploughing and seeding. (Xinhua/Hu Huhu)