How to remedy problems encountered during mushroom growth?

(1) The mycelium does not grow onto the casing soil layer This is mainly because the compost is over-fermented or under-fermented, or the pH of the compost and casing soil is improper; or because too much water is sprayed after casing, flowing into the compost layer and causing the mycelium to shrink or die. In cultivation, measures should be taken to strengthen ventilation, adjust the pH, and insert holes into the compost to release excess moisture as a remedy.

(2) Mushroom death from high temperature Because the temperature is too high and the humidity too great, the mushroom buds turn yellow or die. In management, measures such as strengthening ventilation, stopping water spraying, and lowering the room temperature are used to reduce mushroom death.

(3) Dense mushrooms This is mainly due to the compost being too thin or too dry; or the casing soil being too thin, the mycelium growing past the fine soil, and poor management, resulting in weak mycelial vigor, dense fruiting, small mushroom bodies, and poor quality. Therefore, measures such as topdressing and adding soil and maintaining normal temperature should be taken to prevent dense mushrooms. 

(4) Hard opening of the cap Because of a drop in temperature or too great a difference between day and night temperatures, dry air, or the compost being too wet, the mycelial vigor becomes weak, making immature fruiting bodies prone to hard opening of the cap. Measures such as keeping warm and increasing air humidity are often used to prevent hard opening of the cap.

(5) Deformed mushrooms Reasons such as too thick casing soil, too large soil particles, too late covering with fine soil, as well as too high humidity and poor ventilation, often cause some deformed mushrooms. The main preventive measures are that the size of the soil particles should be appropriate, the soil should be covered at the right time, the soil layer must not be too thick, and secondly, water and ventilation management should be strengthened.

(6) Hollow-stemmed white-cored mushrooms When the temperature is high, the water supply is insufficient, or the temperature is on the low side, mushrooms grow slowly and stay on the mushroom bed for too long, all of which can produce the hollow-stemmed white-core phenomenon. This is mainly prevented by strengthening temperature and water management.