How to increase the yield of spring-planted shiitake mushrooms? Master these tips for high yields

Raise the temperature of the mushroom bed to create conditions for mushroom growth

Since the mushroom yard is still cold in early spring, natural air temperature can be used together with artificial regulation. The method is: cover the film tightly to increase the ground temperature, and at the same time choose sunny days to spread the shading materials on the shed surface thinly, letting sunlight penetrate into the mushroom yard, increasing the heat source and raising the mushroom bed temperature; at night, cover the film tightly to protect against the cold. The large day-night temperature difference in early spring can promote the occurrence of mushroom buds.

Pat the mushroom logs to promote the recovery of mycelial growth. Because the climate is cold in early spring, the mycelium is mostly in a dormant state, producing no mushrooms or very few mushrooms. Generally, patting and shaking can be used to awaken the mycelium and force it to resume growth. The method is: stop supplying water to well-developed mushroom logs and let them dry fully; when the water content drops to 50% of the original moisture level, use the sole of a sponge slipper to pat each mushroom log 3-5 times (be careful not to break them), then place them in a water tank to soak or subject the mushroom logs to high-pressure water injection. When the mushroom logs are taken out, put them back on the shelves and cover them with film to promote budding. After the mushroom logs undergo dry-wet treatment and shaking, the mushroom flushes become concentrated and easier to manage.

Soak the logs in hot water to promote mushroom growth at low temperatures. Soaking logs in hot water is an ideal method for promoting budding under low-temperature conditions. Hot water serves as a medium that can not only increase the temperature difference and expel carbon dioxide from the logs, but also increase the temperature and humidity inside the logs, activating the mycelium that has stopped growing at low temperatures. When soaking the logs, heat the water to 33°C, then pour it into the soaking pool, and place the mushroom logs in the soaking pool for 3-5 hours. If the water temperature drops during this process, add hot water to adjust the water temperature to 18-33°C. After soaking, take out the mushroom logs and place them in the fruiting yard, cover them with film to maintain humidity until buds appear on the logs, then carry out ventilation and air exchange. During the fruiting period, if the air humidity is low, you can directly spray hot water at 18-33°C onto the mushroom logs, then cover the film tightly to improve the microclimate environment inside the arched shed, so as to facilitate the normal growth of shiitake mushrooms.

Supplement nutrients. For mushroom logs that have produced 3-4 flushes of mushrooms, artificial nutrient supplementation can generally increase yield by 20-30%. The method is: after each time the mushroom logs absorb enough water, inject 50 milliliters of 1.5 ppm triacontanol solution or 30 ppm citric acid solution into each log. You can also use soybean milk, rice washing water, shiitake growth hormone, etc., put them in water, and apply them as a top dressing in combination with soaking the logs.