Farmers transplant seedlings in a paddy rice field in Jiaji Town of Qionghai City, south China's Hainan Province, May 21, 2025. The traditional Chinese solar term Xiaoman (Grain Buds) falls on May 21 this year, indicating that grain seeds are becoming full. (Photo by Meng Zhongde/Xinhua)

A farmer takes care of green onions at a field in Qingzhou City, east China's Shandong Province, May 21, 2025. The traditional Chinese solar term Xiaoman (Grain Buds) falls on May 21 this year, indicating that grain seeds are becoming full. (Photo by Wang Jilin/Xinhua)

An aerial drone photo taken on May 21, 2025 shows farmers transporting rice seedlings in a field in Fengnan District in Tangshan, north China's Hebei City. The traditional Chinese solar term Xiaoman (Grain Buds) falls on May 21 this year, indicating that grain seeds are becoming full. (Photo by Li Xiuqing/Xinhua)

A drone monitors soil moisture conditions after rice transplanting at an agriculture demonstration zone of a farming company under the Beidahuang Group's branch in northeast China's Heilongjiang Province, May 21, 2025. The traditional Chinese solar term Xiaoman (Grain Buds) falls on May 21 this year, indicating that grain seeds are becoming full. (Photo by Wang Jinbin/Xinhua)