How to carry out fungus management and mushroom period management in Pleurotus ostreatus cultivation?

In the process of Pleurotus ostreatus cultivation, it is common that mature mushroom beds do not produce mushrooms for a long time, or that they no longer produce mushrooms normally after picking 1-2 tide mushrooms, so in order to avoid these problems, how to carry out fungus generation management and mushroom emergence period management in Pleurotus ostreatus cultivation?

I. Management of bacteria in Pleurotus ostreatus

In the cultivation of Pleurotus ostreatus, the management of the fungus stage is very important, which is the key to the success or failure of cultivation.

1. Temperature: generally, 3 days after inoculation, the hyphae began to recover. The optimum temperature for mycelial growth was 23 ℃. Therefore, temperature management should reach or close to this range as far as possible. In raw material cultivation or open cultivation, there are other microbial activities in the culture material to produce respiratory heat, and the material temperature will be 2 ℃ or more higher than room temperature. Therefore, we should pay close attention to the change of material temperature and take corresponding heat dissipation measures to reduce the temperature of the culture room.

2. Humidity: at this stage, the relative humidity of the air should be controlled below 80%, the mushroom room and the mushroom bed can not spray water, the humidity is high, the pollution rate is high.

3. Light: in the stage of mycelial growth, light is disadvantageous to the growth of mycelium, especially can not let direct sunlight shine on the bacterial bed. The windows of the nursery should be hung with black curtains. Do not turn on the light at will in the culture room except for the light used for inspection.

4. Air: air is also very important for the mycelium growth of Pleurotus ostreatus. Although the mycelium can tolerate high concentration of carbon dioxide in the mycelium growth stage, too high carbon dioxide concentration will also inhibit the mycelium growth, and serious anoxia mycelium will age and suffocate to death. If the ventilation in the culture room is poor, the respiratory heat of the hyphae will not dissipate, which will cause the material temperature to rise and burn out the hyphae.

5. Membrane bed: the hyphae covered the surface of the bacterial bed 10 days after inoculation, before which was the dangerous period of miscellaneous bacteria contamination. In principle, the film can not be uncovered at this stage. Only when the material temperature exceeds 30 ℃ and the hyphae will be burned out if the film is not exposed, it can be ventilated and cooled.

After the hyphae grow all over the surface of the bacterial bed, the film should be breathable for 10 minutes for 20 minutes every day. Because with the increase of the amount of mycelium, the amount of respiratory heat and carbon dioxide is also more, so it is necessary to uncover the membrane and breathe.

Management of mushroom emergence period of Pleurotus ostreatus

After the mycelium grows full, it is generally necessary to go through the ripening stage after 7 days of culture before entering the mushroom stage management.

1. After the mycelium grows full, the bacterial bags should be stacked in rows, usually 4-7 stories high. When a small mushroom bud is formed at the mouth of the bag, remove the newspaper at the mouth of the bag, at the initial stage of the formation of the small mushroom bud, a small amount of water can be sprayed into the air of the mushroom shed (room) many times to keep the ground moist, but do not spray water to the mushroom bud.

2. Spray water only when the mushroom buds differentiate into mushroom lids and stalks, and spray less, fine and frequently, while keeping the ground moist. Only when the mushroom cover grows above 3cm can you spray water on the mushroom body. During the period of mushroom production, the air relative humidity of the mushroom shed (room) had better be kept at 85-95%.

3. When Pleurotus ostreatus grows to the edge of the cap, it should be harvested in time. After harvesting a tide of mushrooms, stop spraying water for 3-7 days to promote the growth of mycelium and the emergence of mushrooms. When mushroom buds appear, appropriate water spraying should be carried out to stimulate the formation of a new tide of mushrooms.