A farmer works in the field in Qiaotou village of Qionghai city, South China’s Hainan province, May 21, 2018. [Photo/Xinhua]

Farmers work in the fields in Jinxing village of Dafang county, Southwest China’s Guizhou province, May 21, 2018. [Photo/Xinhua]

A farmer harvests wheat in the field in Zaozhuang, East China’s Shandong province, May 21, 2018. [Photo/Xinhua]

A farmer works in the field in Pingyi county, East China’s Shandong province, May 21, 2018. [Photo/Xinhua]