Detailed Explanation of Winter Hanging Cultivation Techniques for Shiitake Mushrooms
Scientific inoculation: the deeper the inoculation hole, the more spawn it holds, which helps strengthen the drought resistance of the shiitake mycelium. Under relatively constant temperature and humidity, the mycelium inside the shiitake spawn block will germinate quickly, raising the survival rate. Hot water forcing for primordia: soaking the blocks in hot water to force primordia can double the yield of the mushroom blocks. The specific method is: ...
The hanging cultivation technique for shiitake mushrooms makes full use of the effective area of the mushroom shed and mushroom house. The yellow water secreted by the mycelium on the mushroom logs and mushroom blocks can drip down naturally, and spraying, management and harvesting are all more convenient. When the temperature is low, boiler steam can be used for heating, making it easy to adjust temperature and humidity, which helps produce more shiitake mushrooms in winter.Loading material and inoculation: the shiitake cultivation material is prepared according to the conventional formula for bag cultivation. Use polypropylene or polyethylene plastic bags, size 17 x 33 cm, each bag filled with 0.4 kg of dry material (about 1 kg of wet material), with moderate tightness. Use atmospheric pressure sterilization, cool to below 30°C, then inoculate under aseptic operation, and place in the culture room or mushroom shed to stack the bags (stack 3-5 bags) for mycelial growth. The sterilized cultivation material can also be loaded into a block-pressing box measuring 66 x 33 x 5 cm for block-pressing inoculation and cultivation. After 50-65 days of cultivation, the mycelium will have fully grown through the mushroom log. At this point, strengthen ventilation to promote color change in the mushroom logs and blocks, so as to facilitate hanging for fruiting.
Hanging requirements: fumigate the mushroom house or mushroom shed with formaldehyde, then scatter some lime powder or spray chemicals on the floor and walls to prevent diseases and insect pests, and finally spread a layer of fine sand on the floor. Then take a 1.67 m long nylon rope and fold it into a double-strand rope 0.835 m long. Tie 4 dead knots evenly on the rope, then tie one end of the two double-strand ropes to the crossbeam in the mushroom house or mushroom shed, to replace the cultivation rack for hanging shiitake logs or blocks for fruiting. When the blocks or logs have changed color to a reddish-brown or light brown mycelial film, carefully hang the logs or blocks from top to bottom into the gaps of the dead knots on the double-strand nylon rope, with a layer spacing of 10-15 cm, and wrap a layer of film around the top and edges of the hanging shiitake logs or blocks to keep them warm and moist, clamping the joined parts of the film tightly with clips.
Keep the temperature inside the mushroom house or mushroom shed at 20°C-25°C and the relative humidity at 90%-95%. Under normal conditions, primordia begin to appear after 15-20 days of hanging. From primordium formation to maturity generally takes 10-15 days. After harvesting, manage according to conventional methods and let it continue to fruit normally.