Why do you need a lot of oxygen in the production of Flammulina velutipes?

Why do you need a lot of oxygen in the production of Flammulina velutipes:

Because Flammulina velutipes is an aerobic fungus, it is necessary to continuously absorb fresh air during the metabolic process. Flammulina velutipes consumes a large amount of oxygen during the bud stage and the fruit body growth period. Especially in large-scale cultivation, when the concentration of carbon dioxide in the air exceeds 0.6%, the development of fruiting bodies and caps is inhibited. However, when the fruit body grows to a height of 4 cm, it is necessary to control the oxygen content in the mushroom shed. After that, if the oxygen content in the mushroom shed is high, the mushroom handle is short, and the mushroom cap is easy to open. Linyi Fertilizer Network Copyright
The Flammulina velutipes and the fruiting body should be supplemented with oxygen every day to remove the film covered by the bacteria bag, and open the vents before and after the opening in the morning and evening, ventilate for 1 hour, then the membrane cover outside the bacteria bag is moisturized and closed. Vents before and after the shed. This can not only supplement oxygen, but also maintain high humidity in the mushroom shed, which is beneficial to the development of buds and fruiting bodies. Linyi Fertilizer Network Copyright
The rapid development of fruiting bodies to control oxygen Linyi fertilizer Copyright
In order to keep the air in the mushroom room fresh, the front and rear vents of the shed can be opened all day. In order to reduce the oxygen content around the fruit body, the film covered by the bacteria bag should be tightly sealed, but it should be ventilated once in the morning and evening, and the harmful gas near the bacteria bag should be discharged for about 10 minutes. Linyi Fertilizer Network Copyright
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Duplex Stainless Steels, also referred to as austenitic-ferritic stainless steels, are a family of grades with about equal proportions of ferrite and austenite. These steels have a duplex microstructure which contributes to their high strength and high resistance to stress corrosion cracking. Due to their high content of chromium, nitrogen and molybdenum, duplex steels offer good resistance to local and uniform corrosion. Duplex stainless steels have good weldability.


Today, modern duplex stainless steels can be divided into three groups:
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