A worker grows microgreens at a youth business incubator park in Honghua Township, Tancheng County, Linyi City, east China's Shandong Province, Dec. 20, 2018. Mananeger Hu Tianchi, 30, is a university graduate of the town. He began to develop microgreens online business in 2015. Working together with local agricultural colleges and innovative teams, Hu now has developed 27 varieties of microgreens that can be grown at home, and the products have been provided to the national markets and exported to markets in North America. (Xinhua/Fang Dehua)