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First, Pleurotus ostreatus cultivation and control of bacteria
There are many reasons for the pollution of Pleurotus ostreatus caused by cultivation of large beds. First of all, the causes of pollution should be found for different situations (such as sudden high temperature, water in the feed, ambient environment is not clean, pests, etc.) to treat differently, eradicate the source of pollution, and then Contaminated oyster mushrooms are treated as follows:
In the case of sporadic germs on the surface of the material, it can be controlled by applying a thick lime slurry or covering the affected area. If a large number of bacteria are produced, the soil below 30 cm from the surface can be excavated (no deep pests and diseases in the deep silt), then broken, and 2% of lime powder is added and mixed evenly to remove the thin film. Contaminated areas cover 2-3 cm thick silt soil, covering a slightly larger area than the contaminated area, and slightly tightening the mud. If the material surface is heavily contaminated, the whole bed surface should be covered, and the film should be washed with a disinfectant solution before resuming normal management. After a few days, the hyphae resumed growth, and the mycelia in the silt soil will soon be covered. This will not only have no effect on the yield of Pleurotus ostreatus, but also have a certain effect on yield increase.
Second, the bag mushroom method
The bacterial bags contaminated by the bacteria will be picked out. A high-pitched pit with a depth of about 60 cm will be excavated (the size of the pit will depend on the number of contaminating bags, and attention should be paid to the fact that no stagnant water can accumulate in the pit). The contaminated part of the bacteria bag should be placed downwards in the pit (do not take off the bag), and the distance should be 5 cm. The soil should be isolated and covered with 25-30 cm thick wet fine soil or wet mud soil. After 15-20 days Culture, all contaminated bags will return to normal. After all the hyphae grew well, they moved to the mushroom farm to open bags and produce mushrooms. The mushrooming rate was basically unaffected.
Silt soil covering Pleurotus ostreatus
Pleurotus ostreatus has a variety of cultivation methods, regardless of the cultivation method, bacteria contamination will occur to varying degrees, especially in the high temperature season. According to a variety of bacteria, such as: green mold, Penicillium, Mucor, Trichoderma, Aspergillus, Rhizopus, white mold, red Trichoderma and other aerobic, high temperature and humidity resistant living habits, can take mud cover , raw materials can be drawn on the spot, simple and easy to implement control methods: