Three key points for managing the color-change period of shiitake mushrooms
Edible fungi or fungal strains have their minimum, optimum, and maximum growth temperatures at each developmental stage, which are the so-called "three cardinal points" of temperature regulation. The "three cardinal points" temperatures for shiitake mushrooms are: the minimum temperature for mycelial growth is 6°C, the optimum temperature is 24°C, and the maximum temperature is 33°C; the minimum temperature for fruiting body growth is 8...
2. Spraying, that is, doing a good job of water spraying. Generally, 7 to 8 days after removing the bags, the mycelium begins to exude yellow water droplets. At this time, it must be dealt with promptly; otherwise, it will cause the mycelium to autolyze and make it prone to contamination by foreign bacteria, or cause the mycelial mat to thicken. Therefore, water must be sprayed promptly to rinse it off. On the first day, use a sprayer to spray lightly on the mushroom logs to dilute the yellow water droplets. On the second day, use a sprayer with greater pressure to rinse them. Wait until the mushroom logs are slightly dry, then cover them with plastic film again.
3. Ventilation, that is, doing a good job of ventilation and air exchange. Ventilate no fewer than two times a day for 30 minutes each time. When the temperature is high, uncover the film for ventilation in the morning and evening, increase the temperature difference, and keep the temperature of the mushroom bed during the color-change period at 15°C to 20°C. If the color change is found to be too light or no color change occurs, spray water to increase humidity, then cover tightly with plastic film, or lay the mushroom logs on their sides on the ground and use ground temperature and ground moisture to promote color change.