01:11
During the spring plowing season, agricultural mechanics are busy operating various kinds of machinery and equipment in the vast land of Dezhou City, east China's Shandong Province. Fertilizer application drones were used to help fertilize the wheat fields. With the help of BeiDou Navigation Satellite System, the agricultural machinery can now operate automatically and keep moving in a straight line on the bumpy land, with a precision of two centimeters.