Farmers plough in fields with cattle in Yangdong Village, Liping County of southwest China's Guizhou Province, May 20, 2018. About 1,000 head of cattle were driven to take part in the traditional ploughing work here on Sunday. (Xinhua/Yang Wenbin)

A farmer ploughs in a field with a head of cattle in Yangdong Village, Liping County of southwest China's Guizhou Province, May 20, 2018. About 1,000 head of cattle were driven to take part in the traditional ploughing work here on Sunday. (Xinhua/Yang Wenbin)

A farmer ploughs in a field with a head of cattle in Yangdong Village, Liping County of southwest China's Guizhou Province, May 20, 2018. About 1,000 head of cattle were driven to take part in the traditional ploughing work here on Sunday. (Xinhua/Yang Wenbin)

Aerial photo taken on May 20, 2018 shows farmers ploughing in fields with cattle in Yangdong Village, Liping County of southwest China's Guizhou Province. About 1,000 head of cattle were driven to take part in the traditional ploughing work here on Sunday. (Xinhua/Yang Wenbin)

A farmer walks to plough in a field with his cattle in Yangdong Village, Liping County of southwest China's Guizhou Province, May 20, 2018. About 1,000 head of cattle were driven to take part in the traditional ploughing work here on Sunday. (Xinhua/Yang Wenbin)