Pleurotus Eryngii Cultivation Technology（1）

In recent years, many countries have successively carried out research on the artificial domestication and cultivation of Pleurotus eryngii in artificially controlled environments, with success. At present, China, Japan, South Korea, and Thailand have all entered commercial production. In recent years, many countries have successively carried out research on the artificial domestication and cultivation of Pleurotus eryngii in artificially controlled environments, with success. At present, China, Japan, South Korea, and Thailand have all entered commercial production. Here we have given some growth environment parameters of King Oyster Mushroom for your reference:

1. Nutritional conditions
Pleurotus eryngii belongs to wood saprophytic fungi. Aged sawdust or corn cobs, cottonseed husks, etc. can be used as carbon sources, and wheat bran, corn flour, soybean meal, etc. can be used as nitrogen sources. Systematic research shows that Pleurotus eryngii requires a higher nitrogen source, has high nitrogen content, and has good yield and quality. Generally, the nitrogen content is controlled at 1.5-1.8%.

2. Temperature parameters:
Pleurotus eryngii is a temperature-stable and fruiting fungus. The optimum temperature for mycelial culture is 22-26°C. Corresponding temperature ranges should be controlled at different mycelium development stages to maintain the core temperature of the package below 26°C. Once the temperature during the mycelial cultivation stage exceeds 26°C (the center temperature of the cultivation package), the yield will be significantly affected.
At different stages of primordium and development, the optimal temperature of the fruiting body is 14–15℃. At this time, the fruiting bodies are thick, white, hard, bright, and highly productive. Once the temperature of the cultivation environment exceeds 18°C, the fruiting bodies begin to become soft or even hollow, resulting in low yield and easy infection by bacterial diseases.

3. Humidity parameters:
In substitute cultivation, through experiments we can clearly see that the moisture content of the culture medium is optimal at 65%. Therefore, in large-scale production, the moisture content of the culture medium is often controlled at 64% to 66%. The suitable relative humidity of ambient air during mycelium cultivation is 60-70%. The humidity for mushroom fruiting is generally 85-90%.

4. Air parameters:
During the cultivation phase, the carbon dioxide concentration in the warehouse is controlled at 2200PPM. According to the different stages of primordium differentiation and fruiting body growth and development, and by controlling different carbon dioxide concentrations in the cultivation environment, high-quality commercial mushrooms can be obtained.

5. Light parameters:
Pleurotus eryngii mycelium grows well under dark conditions. Inducing mushroom bud formation requires intermittent diffuse light stimulation. The fruiting body development stage requires a certain amount of scattered light, generally 200–500Lx (lux). Pleurotus eryngii also has obvious phototaxis.

6. PH value parameters:
Through experiments, it was found that the suitable pH value for the early stage of Pleurotus eryngii mycelium culture is 6.3-7.2. As the mycelium degrades and metabolizes the culture medium to produce organic acids, the pH of the culture medium drops to 6.0.-6.4 before mushroom bud differentiation and begins to “spit water droplets”, then enters the kink of the mushroom buds and further develops into fruiting bodies. After harvesting, the pH value drops to 4.5-5.0.

7. Mineral element parameters:
Any fungus that spreads in the culture medium has an optimal pH value. In addition, due to the differences in the objects of degradation, the different cultivation raw materials selected in different places, and the differences in physical and chemical properties, it is necessary to artificially add different proportions of lime and superphosphate to adjust the pH.