Staff members maintain the autonomous transplanting intelligent system at Youyi Farm Co., Ltd. under Beidahuang Group in Shuangyashan City, northeast China's Heilongjiang Province, March 19, 2025. Farming activities are in full swing across Heilongjiang, China's largest grain producing province, in early spring. (Xinhua/Wang Song)

　　A staff member prepares the seedbed soil at a greenhouse of Youyi Farm Co., Ltd. under Beidahuang Group in Shuangyashan City, northeast China's Heilongjiang Province, March 19, 2025. Farming activities are in full swing across Heilongjiang, China's largest grain producing province, in early spring. (Xinhua/Wang Song)

　　A staff member maintains an automatic sunshine recorder at Youyi Farm Co., Ltd. under Beidahuang Group in Shuangyashan City, northeast China's Heilongjiang Province, March 19, 2025. Farming activities are in full swing across Heilongjiang, China's largest grain producing province, in early spring. (Xinhua/Wang Song)