The cultivation of Pleurotus ostreatus fermentation material has the characteristics of simple technology, low investment, and safe and reliable clinker cultivation, etc., as long as the fermentation technology is mastered, it can be used on the premise of no energy consumption and no additional sterilization equipment. Stacked fermentation. The high temperature produced when the fermented material is accumulated can kill most of the bacteria in the material, and the fermentation is more conducive to the mycelial growth of the mushroom. Therefore, the cultivation of the fermented material is the development direction of the mushroom production in the near future. The production of Pleurotus ostreatus fermented material should have the following important aspects. First, the construction site of materials and heaps of mixed materials is best to be close to the concrete floor of the mushroom house, and the drainage is good, avoiding the sun, the water source is clean and convenient. When building a heap, mix the material first, add enough water to the culture material to contain 65% to 70% of the water (including the moisture loss during the fermentation process), and then stack the material into a width of 1.0 to 1.3 meters, and a height of 1.0 to 1.5. Meters are not limited in length. The stack is as steep as possible. When the heap is built, the material will fluff off and fall. After the pile is built, use wood sticks (about 5 cm in diameter) to insert ventilation holes in the stack, insert a hole every 0.2 meters to facilitate ventilation and then cover with plastic film or straw, straw, etc. Second, the timely turning of Pleurotus ostreatus fermentation in the spring and autumn heap system, 48 ~ 72 hours after the construction of the heap should be turned. During the turning, the material must be loosened to increase the oxygen content in the material. At the same time, the material in the center of the pile is turned over and the surrounding material is turned into the center so that the culture material can be uniformly fermented. The whole fermentation process is about 6-8 days. ~ 4 times. The time should not be too long, otherwise it will consume a lot of nutrients; of course, the time is too short and the fermentation is not enough to achieve the purpose of fermentation. Third, the quality of fermentation materials within a predetermined period of time (about 48 hours to build a heap) if the normal temperature rise above 60 °C, open the heap when you see the right amount of white hyphae, said moderate moisture, fermentation is normal. If the delay is less than 60°C after the reactor has been built, it may cause excessive venting of the heaped material due to over-tightness of the culture material or lack of ventilation holes, which is detrimental to the growth and reproduction of actinomycetes. In case of this situation, it should be turned over in time and the stockpiling should be spread out to dry or dry materials should be added to the appropriate amount of water. If the temperature rise is normal, but the material is bleached when opening, the water loss will be too much. Hot water above 80°C can be used and mix well and then ferment again. The fermented material has aroma and the pH is between 6.5 and 7. China Agricultural Network Editor
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