Causes and Control methods of "freaks" in the growth of Agaricus bisporus
1. Deformed mushroom. Poor ventilation, mushroom room carbon dioxide content of more than 0.3%, prone to deformed mushrooms. The mushroom part is too deep, and the mushrooms that grow between the cracks in the coarse soil are often deformed. The key point of prevention and control is to pay attention to the ventilation of the mushroom room.
2. Red root mushroom. Sour cultivation materials, high temperature before mushroom production, excessive water content of overlying soil layer, excessive topdressing of glucose, poor ventilation of mushroom room and so on are easy to lead to red root mushroom. The pH of the culture material should be adjusted, and the water content of the covered soil should be kept at 22%, 25%, to avoid sprinkling water at high temperature, and the concentration of topdressing should be appropriate.
3. Pleurotus ostreatus with empty root. Too little water is sprayed, the soil layer is dry, the fruiting body can not get enough water, and the mushroom stalk produces white pith, or even hollow. The main preventive measure is to spray water timely and appropriately to keep the air relative humidity of the mushroom room above 85% during the mushroom period.
4. Pleurotus ostreatus with thin skin opens early. If the density of mushroom is too high, the temperature is too high, or the humidity is low, the fruiting body grows fast and the handle is thin, which will open the umbrella early. Pay attention to maintain the temperature and humidity of the mushroom room, can effectively prevent the emergence of thin-skinned early umbrella mushrooms.
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Suitable cultivation season of Agaricus bisporus
Agaricus bisporus is a kind of low-temperature fruiting fungus, which produces fruiting body only when it is below 18 ℃, and the optimum temperature for mushroom production is about 16 ℃. Therefore, the cultivation season is mostly arranged in autumn and winter and lasts until early spring. Due to the differences in climate and topography and microclimate, the cultivation period of mushrooms can be determined according to the local meteorological data. Generally, the sowing time is when the local average temperature of day and night in autumn is stable at 22: 25 ℃. As a result, the date of culture material construction is pushed back about 23 days, and the area of Jiangsu and Zhejiang is in mid-August.
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Indoor post-fermentation of Agaricus bisporus
The culture material which has been fermented before outdoor is transported indoors, and the culture material is disinfected and fermented under specific environmental conditions by manual control and gas control, so as to further improve the specificity and selectivity of the culture material. the process of making the culture material fermentation into a culture medium more suitable for mushroom growth is called indoor post-fermentation. ① principle: post-fermentation is a biochemical reaction process, which promotes the change of physical and chemical properties of compost through the activities of various types of thermophilic microorganisms. Post-fermentation can be divided into two stages. The first stage: changing the temperature of the reactor
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