Orchardists work inside a greenhouse for growing cherries at Baojiatan Village of Zanhuang County in Shijiazhuang, capital of north China's Hebei Province, Feb. 20, 2019. People across China began to engage in farming in early spring.(Xinhua/Zhang Xiaofeng)

　　Aerial photo taken on Feb. 20, 2019 shows farmers preparing for planting potatos at Dongyaozhuang Village of Yutian Town in Yutian County, north China's Hebei Province. People across China began to engage in farming in early spring.(Xinhua/Liu Mancang)

　　A farmer drives a machine in the field at Anle Village of Zhongcheng Town in Rongjiang County, southwest China's Guizhou Province, Feb. 20, 2019. People across China began to engage in farming in early spring. (Xinhua/Wang Bingzhen)

　　Aerial photo taken on Feb. 20, 2019 shows farmers mulching plastic films at Anle Village of Zhongcheng Town in Rongjiang County, southwest China's Guizhou Province. People across China began to engage in farming in early spring. (Xinhua/Wang Bingzhen)

　　A farmer works inside a greenhouse for growing cherries at Donggaoqiao Village of Yangjiatao Town in Yutian County, north China's Hebei Province, Feb. 20, 2019. People across China began to engage in farming in early spring. (Xinhua/Liu Mancang)

　　A woman works in the field at Xincun Village of Siba Town in Luocheng Mulao Autonomous County, south China's Guangxi Zhuang Autonomous Region, Feb. 20, 2019. People across China began to engage in farming in early spring.(Xinhua/Wu Yaorong)

　　Farmers pick peppers in Jiaji Town of Qionghai City, south China's Hainan Province, Feb. 21, 2019. People across China began to engage in farming in early spring.(Xinhua/Meng Zhongde)