Cultivation of Pleurotus ostreatus: what are the growth requirements of Pleurotus ostreatus?

What are the growth requirements of Pleurotus ostreatus? Please give a detailed description of the temperature, humidity, pH (PH planting) requirements for the growth of Pleurotus ostreatus. Please refer to the following list: ① mycelium growth stage. The temperature range of mycelial growth of Pleurotus ostreatus is 5-36 ℃, and the optimum growth temperature is 24-28 ℃. The growth rate decreases rapidly below 10 ℃ and above 32 ℃. When the growth rate exceeds 36 ℃, the mycelium stops growing and the high temperature lasts for a long time. At low temperature, the mycelium grows slowly, but does not affect its vitality. When the temperature increased to more than 32 ℃, the mycelium did not die, but when the temperature returned to the suitable temperature range, the growth rate of mycelium decreased obviously. If this happens in the actual cultivation, it will affect the bacteria of the haystack and the yield. ② fruiting body growth stage. The temperature range for the formation of fruiting body of Pleurotus ostreatus is 430 ℃, and the optimum temperature for primordium formation is 1225 ℃. In this temperature range, when the temperature increases, the growth rate of the fruiting body increases, the flower shape is smaller, and it is easy to open the umbrella, while at lower temperature, the fruiting body develops slowly, the flower shape is often larger, the stalk is thick and fat, the quality is excellent, and it is not easy to open the umbrella. Fruiting bodies in the process of growth, encounter frost and snow weather, as long as take certain anti-freezing measures, mushroom buds can survive. When the temperature is more than 30 ℃, the fruiting body primordium is difficult to form. (4) the mycelium of Pleurotus ostreatus can grow without light at all, but scattered light can promote the formation of fruiting body. In the actual cultivation, the cultivation field chooses the semi-shaded environment, the cultivation effect is better. It is mainly shown in two aspects: one is that the yield is high, and the other is that the mushroom has bright color and strong body, which may be because the sun increases the ground temperature. and through the evaporation of water vapor to promote the exchange of air in the matrix to meet the requirements of hyphae and fruiting bodies for nutrition, temperature, air, water and so on. However, if the sun shines directly for a long time, resulting in a decrease in air humidity, it will crack the mushroom stalk that is growing rapidly and close to the harvest time, affecting the appearance of the goods. (5) Pleurotus ostreatus is a kind of aerobic fungus, fresh and sufficient air is one of the important environmental conditions to ensure normal growth and development. In the mycelium growth stage, it is not sensitive to ventilation requirements, and the concentration of carbon dioxide in the air can reach 0.5%-0.1%, while in the fruiting body growth and development stage, the carbon dioxide concentration in the space is required to be less than 0.15%. When the air is not ventilated and the oxygen is insufficient, the growth of mycelium and the development of fruiting body will be inhibited, especially when a large number of fruiting bodies occur, we should pay more attention to the ventilation of the site. Only by ensuring the fresh air of the site, it is possible to obtain high quality and high yield. (6) Pleurotus ostreatus with pH value can grow at pH 4.5-9, but the slightly acidic environment with pH 5-7 is more suitable. In the medium with higher pH value, the mycelium grew slowly in the early stage, but in the process of mycelium metabolism, organic acids were produced, which decreased the pH value in the medium. The mycelium could grow normally under the condition of natural pH value of rice straw medium. (7) the mycelium of Pleurotus ostreatus can grow normally in the environment without soil, but soil mulching can promote the formation of fruiting body. Although mushrooms can be produced without covering the soil, the time is obviously prolonged, which is related to the microorganisms in the cover layer. The covered soil is required to contain humus, soft texture and high water holding capacity. It is appropriate to cover the soil in the garden, do not use sandy soil and clay. The best pH value of soil is 5.7-6.0. To sum up, the main parameters for the cultivation of Pleurotus ostreatus are as follows: (1) the culture temperature of mycelium is 21: 27 ℃; the water content of culture material is 70% 75%; the culture time is 25% 45 days; the concentration of carbon dioxide is more than 2%, ventilation is 0: 1 per hour, and no light is needed. (2) the primordium differentiation temperature of mushroom bud is 1016 ℃, the relative humidity is 95% 98%, the time is 14 21 days, and the concentration of carbon dioxide.