Employees work at a greenhouse of a modern agricultural demonstration garden in Qingxian County, north China's Hebei Province, March 24, 2020. In recent years, with the construction of the modern agricultural zones, Qingxian county has focused on introducing modern technologies and "industrialization" management ideas to develop local brands, smart farms, ecological tourism and other forms of agriculture to help increase farmers' income. (Xinhua/Zhu Xudong)
