An unmanned aerial vehicle fertilizes a paddy field at Balidian Town in Wuxing District of Huzhou City, east China's Zhejiang Province, July 10, 2020. Unmanned aerial vehicles are used to conduct fertilization work above more than 3,300 mu (220 hectares) of paddy fields here recently. (Xinhua/Huang Zongzhi)
Unmanned aerial vehicles used to conduct fertilization work in Zhejiang
Source: Xinhua| 2020-07-10 21:13:19|Editor: huaxia