Farmers take care of peach trees as part of the spring agricultural work in Guduo village of Dali county, Northwest China’s Shaanxi province, Feb 28, 2019. [Photo/Xinhua]

Farmers apply greenhouse coverings as part of the spring agricultural work in Xiaopo village, Anren township of Dali county, Northwest China’s Shaanxi province, March 1, 2019. [Photo/Xinhua]

Farmers apply grafts to watermelon seedlings as part of the spring agricultural work in Fengcun village of Dali county, Northwest China’s Shaanxi province, Feb 28, 2019.[Photo/Xinhua]

A worker adjusts greenhouse sprinkler nozzles as part of the spring agricultural work in Fengcun village of Dali county, Northwest China’s Shaanxi province, Feb 28, 2019.[Photo/Xinhua]