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A worker collects the agaricus bisporus cultivated in the Modern Agricultural Demonstration Zone of Guannan County, Lianyungang, east China's Jiangsu Province, on Feb. 21, 2019. A series of favorable policies, project-driven approaches and training programs applied to the Guannan Modern Agricultural Demonstration Zone have promoted the zone into a whole industry chain of mushroom production, which bring considerable benefits to local economy. (Xinhua/Geng Yuhe)