Key Technical Points for Overwintering Management of Shiitake Mushroom Bags

After the Winter Solstice arrives, temperatures will drop noticeably. Regarding how to do a good job of overwintering management for shiitake mushrooms, the following technical suggestions are hereby put forward for mushroom growers' reference:

1. Remove the shade net originally used for cooling and heat insulation so that sunlight shines directly onto the plastic greenhouse, thereby raising the daytime temperature inside the greenhouse.

2. Reduce the number of ventilation times around the greenhouse, exchanging the air once every other day. For the small arched film inside the greenhouse, apart from when picking shiitake mushrooms, there is generally no need to lift the film for ventilation.

After one flush of mushrooms is finished, let the mushroom bags dry and ventilate for 7-10 days, then inject water to stimulate pinning. During the pinning stimulation period, pay attention to heat preservation. If the temperature inside the mushroom shed has not exceeded 15°C, ventilation can be carried out once every 3-5 days; if mushrooms have already appeared, ventilation can be carried out in conjunction with picking shiitake mushrooms.

For high-temperature varieties such as L26, Qingke 20, etc., when the daytime temperature drops below 10°C, they are difficult to grow, so attention should be paid to heat preservation to cultivate the mushroom bags well, and to appropriate ventilation, to prevent the mushroom bags from overwintering in a high-humidity state.