For recent days, the workers in Dongchen Mushroom Cooperative of Qiqihar City, Heilongjiang Province of China have been engaged with Shiitake picking. According to know, the cooperative absorbs 125 mushroom greenhouses and holds the gross investment of 2.7 million CNY, it mainly engages in Shiitake production, the daily picking volume totals 2500 kg while the annual profits come to 3.7 million CNY or so.