Aerial photo taken on March 15, 2019 shows farmers in farm machineries working in fields in Yuanxi village under Sanjiang town of Nanchang county, East China’s Jiangxi province. [Photo/Xinhua]

A farmer in a farm machinery works in a field in Yuanxi village under Sanjiang town of Nanchang county, East China’s Jiangxi province, March 15, 2019. [Photo/Xinhua]

Aerial photo taken on March 15, 2019 shows a farmer covering plastic films on newly-planted vegetable seedlings in Sanjiang village under Sanjiang town of Nanchang county, East China’s Jiangxi province. [Photo/Xinhua]