The latest course of cultivation techniques of Pleurotus ostreatus

Tea tree mushroom is commonly known as tea mushroom, tea tree mushroom taste delicious, crisp and delicious, fragrance but no peculiar smell, mushroom body contains 18 kinds of amino acids and a variety of mineral elements, traditional Chinese medicine believes that tea tree mushroom has the effects of removing dampness, diuresis, invigorating spleen and stomach and so on. It is one of the delicious and rare edible fungi, and it is the most popular mushroom dish in banquets and restaurants at present. Pleurotus ostreatus mainly comes from wild. It began in 1972 in China. In 1990, it was cultivated successfully in a large area of Guangchang, Jiangxi Province, and then large-scale production was carried out.

Biological characteristics of Pleurotus ostreatus

1. Temperature

Pleurotus ostreatus grows in temperate to subtropical regions, so it is more resistant to high temperature and low temperature. The mycelium could grow normally at 5-35 ℃, and the optimum temperature range was 18-28 ℃. Pleurotus ostreatus is a constant temperature fruiting fungus, which does not need temperature difference stimulation. Its fruiting body formation temperature is 13-28 ℃, the most suitable is 18-24 ℃, and the mushroom emergence speed is fast at 20 ℃.

2. Moisture

The water content of the culture material of Pleurotus ostreatus can be controlled at about 65%, and the growth is fast. If the culture material is dry or wet, it is not conducive to mycelial growth. When the fruiting body is formed, the relative humidity of the air is required to be higher, and the growth process is lower, so it is beneficial to the growth and development of the fruiting body to keep the relative temperature of the air at 100% during the mushroom period and to drop to 85% after mushroom production.

3. Air

Tea mushroom is an aerobic fungus, the mycelial growth stage should ensure the supply of fresh air, so the culture environment of the cultivation bag must be well ventilated. However, in the stage of mushroom emergence and fruiting body growth, a slightly higher concentration of carbon dioxide is beneficial to mushroom emergence and stalk elongation, thus increasing the yield, so the ventilation should be reduced during the fruiting body development, which is similar to the cultivation of Flammulina velutipes.

4. Nutrition

Pleurotus ostreatus is a kind of wood-rot fungus, which is often wild on the decaying stump of Camellia oleifera or in decaying parts such as poplar and willow. Because of its non-insect laccase activity, the ability of utilizing lignin is weak, but the activity of protease is strong, the ability of utilizing protein is strong, and the optimum carbon ammoniation is 60:1. Increasing the proportion of organic nitrogen (such as wheat husk, rice bran corn flour, cake fertilizer, etc.) in the cultivation material is beneficial to increase the yield.

5. Light

The mycelium growth process of Pleurotus ostreatus usually does not need light, but its fruiting body has obvious phototaxis, and the formation of primordium and the development of fruiting body need a certain amount of scattered light, so the cultivation chamber requires strong scattered light to facilitate the formation of primordium and the growth of fruiting body.

6. PH (PH value)

Tea mushroom likes to grow in acidic environment, the PH value can grow normally in 4-6.6 mycelia, the optimum PH value is 5.5-6, and the growth is poor in neutral and alkaline environment, so the natural PH value can be used in cultivation, but it should be prevented from being alkaline.