What are the winter insulation technical measures for mushroom houses?

The suitable temperature for the growth of the fruiting bodies of the white button mushroom (Agaricus bisporus) is 14-16°C. When the temperature in the mushroom house is below 10°C, growth becomes slow or stops. In order to extend the fruiting period, ways must be found to increase the temperature of the mushroom house. In cold regions, growing mushrooms and vegetables in winter requires insulation and heating.

1. When the air temperature is below 11-13°C, cover the top and surrounding sides of the existing mushroom house with thin black plastic film, and secure it firmly with ropes. At the positions of the originally opened ventilation windows, the film should be cut away accordingly to preserve the usual ventilation needs. Daily ventilation or watering should be carried out at noon when the air temperature is relatively higher. Each mushroom house should preferably have 2-3 thermometers placed in different positions so that temperature changes can be observed. Pay special attention to the temperature on the top layer. Once the temperature on the top layer exceeds 23°C, the ventilation windows should be opened in time to ventilate and exchange air so as to avoid high temperatures affecting mushroom quality.

2. Place multiple ceramic buckets or iron pots filled with burning charcoal or coal (preferably coke) in the aisles of the mushroom house to provide heat energy for warming. When using this method for heating, safety must be given great attention. First, strictly prevent fires. Charcoal or coal may only be moved indoors after the open flames have died out, and it must be kept away from the wooden frames of the mushroom beds; at the same time, mushroom bed straw or other flammable materials must not be allowed near it. Second, prevent carbon dioxide poisoning. Before entering the house each time, the door and windows must first be opened to allow ventilation and air exchange before entering to work.