How to safely winterize Pleurotus ostreatus
After the winter oyster mushroom was cultivated, the harvest period of the oyster mushroom did not end, but was often constrained by the natural climate. The amount of mushroom and the growth rate of the oyster mushroom were all affected to varying degrees compared with the temperature suitable period. After the winter solstice, the temperature dropped, the climate was dry, the metabolic function of the mycelia of Pleurotus ostreatus, the growth rate of the fruiting bodies, and the occurrence frequency of the primordium were significantly reduced, which had a great influence on the growth and development of Pleurotus ostreatus fruit bodies. In particular, when it comes to winter drought, low temperatures coupled with low humidity, if improperly managed, it will lead to phenomena such as dead mushrooms and malformed mushrooms.
Scientific water ensures environmental humidity
When the natural temperature is lower than 5°C and the relative humidity of the space is lower than 70%, it is difficult for the natural temperature and humidity conditions to meet the growth requirements of the fruit body, and management measures must be artificially strengthened. Due to the low temperature, the metabolic function of mycelium was significantly weakened, and the growth rate of fruiting bodies was significantly reduced. At this point the matrix material moisture content of the culture should be controlled within 60% is appropriate, the amount of water spray on the bed should be reduced accordingly, the focus should be to increase the relative humidity of the main space, so that the relative humidity of the mushroom field reached 85% to 90%. If the humidity is low and the growth rate of the mushroom is slow, not only the growth period is prolonged, but also the yield is low and the quality of the mushroom body is poor. When the temperature is high every day, water can be sprayed on space, ground, walls, etc. to increase the humidity of the space environment.
Double film coverage stable small space temperature
In addition to the effective temperature of outdoor cultivation and use of sunlight, the effect of covering a double-layer film is quite obvious due to the low-temperature cold wave and the strong wind cooling weather. Conditional plastic sheds can be constructed and then covered with inner membranes. Without conditions, grass curtains can be thickened on the first layer of membranes and then covered with a thin film on the turf. It has been proved that the temperature of the mushroom bed covered by the double-layer film is 3°C-5°C higher than that of the single-layer film, which can significantly accelerate the growth rate of the mushroom body and increase the yield of the mushroom. Supplementing Nutrients to Improve Mycelial Metabolism After harvesting the tidal mushroom, the nutrient moisture in the material will decrease significantly. The growth of mushroom body appeared to be covered with thin cover, fine handle, single sown, small bundle, light color and cracked mushroom body. This has a direct relationship with the lack of nutrients and moisture in the feed and the degraded nutrient capacity of mycelium. When the temperature is low in winter, combined with supplementary moisture, 3% of soybean milk slurry, 10% of Taomi Shui, 0.5% urea solution, 1% hydrophobic water and other nutrients can be added to the material to adjust the ratio of carbon to nitrogen in the material and enhance the activity of the mycelium. Cell and decomposition function, to achieve the purpose of improving yield and quality. Reasonable ventilation The normal development of the broilers in the cold winter season, the mycelia and fruit bodies did not stop growing and still undergo metabolism. Ventilation should not be ignored if necessary. Daily ventilation should be combined with water or mushrooms. Minimize the carbon dioxide gas in the membrane or mushroom house to ensure that the air in the mushroom house or membrane is fresh and the oxygen is sufficient. Every day when the temperature is high, it should be ventilated for 1 to 2 hours. The surface coverage ensures that the mycelium is safely overwinter and winter temperatures are often below zero or even tens of degrees. Winter management should be completed after the autumn mushrooms, mushroom house and culture materials in a relatively dry state, combined with loose rod material surface, exhaust gas emissions, and appropriate nutrients and adjust the pH value of the material, and then in the material surface The film is covered with 10-15 cm thick soil layer or 20 cm thick clean grass layer in order to facilitate the insulation, and prevent the freezing of the material surface to freeze and damage the hyphae. Otherwise, it will adversely accumulate nutrients and affect the output in the coming year. Indoor cultivation, should be kept at room temperature about 5 °C until the spring temperature rises after the cover is opened, and then normal management of mushrooms.
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