After the harvest of autumn mushrooms, if no warming measures are taken and the production of winter mushrooms continues, then the mushroom bed will enter the winter management stage. The main measures are: First, do a good job of insulation and ventilation of the mushroom house in the winter, mushroom room temperature It is best to keep it above 3 degrees without ice in the room to prevent freezing of mycelium. On warmer days, pay attention to ventilation to make the indoor air fresh. Ventilation method: open the south window of the mushroom house at noon for two or three hours; if the sky is warm and windless, and the outdoor temperature is above 8 degrees, open the south and north windows to allow air convection; if the outdoor temperature is below 5 degrees at noon Ventilation should be suspended. Second, do a good job of mushroom bed water spray and fertilizer winter mushroom bed how much the number of water, depending on the degree of dry and wet soil particles, generally can keep it on the line. To prevent excessive water spray, too much, so that germination of mycelium at low temperatures suffered freezing injury. Mushroom top dressing can be combined with water spray. Topdressing manure is best filtered with gauze, the concentration of about 20%. Third, do a good job bed soil in addition to the old root mushroom housing conditions are good, the soil within the mycelium grow vigorously, you can scrape the mushroom bed fine soil, loose loose soil, loose surface can be larger; growth in general, will The coarse soil can be loosened; the growth is poor, and winter can not be loosened. Until the coming spring of March-April, the coarse and fine soil will be easily moved once. However, loose soil cannot peel a large number of white mycelium. When clearing the old root and dead mushroom of the mushroom bed, it is necessary to re-pave the coarse and fine soil and spread it. When the mycelium has germinated, it is necessary to cover the bed with a new layer of fine soil, 2 to 3 cm thick. Before covering the soil, it is necessary to spray two or three times with water.