Staff members work in an artificially-illuminated dragon fruit orchard in Bacao Village of Liangtian Township, Zhenning Buyi and Miao Autonomous County, southwest China's Guizhou Province, May 15, 2020. (Xinhua/Tao Liang)

In this aerial photo taken on May 15, 2020, artificial lighting is applied to help extend daylight hours in a dragon fruit orchard in Bacao Village of Liangtian Township, Zhenning Buyi and Miao Autonomous County, southwest China's Guizhou Province. (Xinhua/Tao Liang)

In this aerial photo taken on May 15, 2020, artificial lighting is applied to help extend daylight hours in a dragon fruit orchard in Bacao Village of Liangtian Township, Zhenning Buyi and Miao Autonomous County, southwest China's Guizhou Province. (Xinhua/Tao Liang)