A child views seedlings at a greenhouse of a modern agricultural science and technology demonstration park in Guanqiao village of Jiayu county, Central China’s Hubei province, April 11, 2019. [Photo/Xinhua]

Farmers work at a greenhouse of a modern agricultural science and technology demonstration park in Guanqiao village of Jiayu county, Central China’s Hubei province, April 10, 2019. [Photo/Xinhua]

Aerial photo taken on April 10, 2019 shows greenhouses at a modern agricultural science and technology demonstration park in Guanqiao village of Jiayu county, Central China’s Hubei province. [Photo/Xinhua]

People visit a greenhouse at a modern agricultural science and technology demonstration park in Guanqiao village of Jiayu county, Central China’s Hubei province, April 11, 2019. [Photo/Xinhua]