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Key Technical Points for Stacking and Mycelium Running in Log Cultivation of Shiitake Mushrooms

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After inoculation, to enable the mycelium to rapidly colonize and spread into the cambium, the mushroom logs must be stacked. Commonly used stacking patterns include the "well" shape, "roof ridge" shape, and "fish scale" shape. In relatively damp locations, the "well" shape and "roof ridge" shape are usually adopted, with a stack height of 1.5-1.6 m, stones placed at the base, about 20 cm from the ground, and branches, leaves, straw curtains, etc. used as cover on top. Spray water once every 1-2 days, and turn the stack once a week, swapping the positions of the logs. At this stage, the main focus is maintaining the temperature within the stack to promote mycelium colonization

After inoculation, to enable the mycelium to rapidly colonize and spread into the cambium, the mushroom logs must be stacked. Commonly used stacking patterns include the "well" shape, "roof ridge" shape, and "fish scale" shape. In relatively damp locations, the "well" shape and "roof ridge" shape are usually adopted, with a stack height of 1.5-1.6 m, stones placed at the base, about 20 cm from the ground, and branches, leaves, straw curtains, etc. used as cover on top. Spray water once every 1-2 days, and turn the stack once a week, swapping the positions of the logs. At this stage, the main focus is maintaining the temperature within the stack to promote mycelium colonization and growth.

From 10-15 days after inoculation, check the recovery and survival of the spawn. If the white mycelium of the spawn in the inoculation holes has spread into the surrounding wood, it indicates that the spawn has survived and colonized. For dead holes caused by drying and other reasons, replanting can be done within 30 days. After confirming successful colonization (generally 15-20 days after inoculation), the plastic film can be removed, and a layer of thatch can simply be spread over the stack, and the mushroom logs should be stacked in a relatively open and well-ventilated location. At this stage, the main focus is moisture-retention management, to promote the mycelium in the logs to spread deeper. During this stage, the stack must be turned once every 10-15 days, swapping the upper and lower positions of the logs.

This stage is the most critical in the process of shiitake log cultivation, and it also lasts a relatively long time, from the end of March to November, about 6 months or so. During this period, the shiitake mycelium grows and spreads within the mushroom wood, decomposing the wood and accumulating nutrients. The management during this period is mainly to keep the mushroom logs at appropriate moisture levels; especially during continuous drought and hot days, spray water once every 2-3 days, with each spraying lasting 1-2 hours.

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