In the production of Agaricus bisporus, due to the discomfort of the environment conditions of the mushroom house and the culture material and improper management measures, it will affect the normal growth and development of the mycelium and fruit body, and then affect the yield and quality.

After sowing, the hyphae do not germinate and do not eat materials. This is caused by the temperature, ventilation and humidity in the mushroom house. If the surface of the culture material is too dry, spray calcium phosphate or potassium dihydrogen phosphate solution in time; if the material is too wet, increase the ventilation of the mushroom house; take cooling measures when the temperature in the mushroom house is high; when there is ammonia in the mushroom house In case of bad smell, increase ventilation in time, poke holes in the culture material surface to remove ammonia gas.

After the soil is covered, the mycelium grows vigorously and vegetatively after sowing. The fluffy hyphae grow densely and often emerge from the soil surface to form a dense impermeable and air-tight "bacterial cover" layer. This is mainly due to the prolonged mycelium caused by high temperature and high humidity. The measure to prevent the mycelium from "coating" is to strengthen the ventilation in the mushroom house, reduce the temperature and humidity in the mushroom house, and spray "the mushroom water" in time to facilitate the formation of the primordia when the mycelium grows out of the soil layer. Do not spray water too quickly, spray water in the morning and evening when it is cool. Once the mycelium is found to be elongated, use a knife or bamboo chip to pick out the cover in time.

The hyphae of the covering soil layer degenerates 3 to 5 days after covering the soil. The hyphae will not be on the soil for 3 to 5 days. The reason is that too much water is sprayed too quickly after covering the soil, which causes hypoxia and suffocates the hyphae. Water spraying should be stopped immediately, and ventilation should be strengthened to facilitate the mycelium to resume climbing.

During the growth process of the fruit body of Pleurotus ostreatus, due to the high temperature, the growth rate of the fruit body is high, and the fruiting density is too large, the nutrient supply is not high, and Pleurotus ostreatus is prone to appear, its yield is low and the quality is poor. In order to avoid this phenomenon, ventilation should be strengthened during the water spraying period, the thickness of the culture material and soil layer should be appropriately increased, and the water and temperature management during the fruiting period should be strengthened.

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