Staff members pick shiitake in an edible mushroom cooperative in Hai'an County of Nantong City, east China's Jiangsu Province, Jan. 15, 2018. Local farmers grind straws to plant shiitake. (Xinhua/Xiang Zhonglin)

A farmer arranges mushroom spawns in an edible mushroom cooperative in Hai'an County of Nantong City, east China's Jiangsu Province, Jan. 15, 2018. Local farmers grind straws to plant shiitake. (Xinhua/Xiang Zhonglin)