Control Methods for Mushroom Mycelium Failing to Grow into the Substrate

About 10 days after spawning, the mushroom mycelium should visibly grow into the substrate. If this is not the case, it is due to causes such as the compost being too wet or too thick, the interior of the substrate being too dry, or the substrate layer being compacted. The cause should be identified promptly to create favorable conditions for mycelial growth. Although a dry surface is not a problem, never spray water on the bed surface while cultivating the mycelium. If the interior of the substrate is too dry, supplemental nutrient water should be added to the substrate: for every 100 sq m, use 0.9 kg of soybeans, soak them until swollen and grind them into about 90 kg of juice, add 45 yeast tablets, 27 vitamin B1 tablets, and 0.45 kg of white sugar, mix and dissolve in a sprayer, remove the nozzle, replace it with a water injector, insert it into the middle layer of the substrate on the mushroom bed at 15 cm intervals, and inject an appropriate amount of nutrient water, creating suitable moisture and nutrient conditions for the mycelium to grow downward. If the substrate layer is too wet, too thick, or compacted, the substrate can be loosened to release moisture, expel stale air, increase air permeability within the substrate, and promote downward growth of the mycelium.