Detailed Explanation of Key Points and Methods for Bolete Cultivation Techniques

Boletes are wild edible fungi, and most varieties can be eaten. They are delicious, nutritious, and have very thick flesh. So what are the bolete cultivation techniques?

1. Temperature

Temperature is an important indicator affecting the occurrence of king boletes, and conversely temperature is the result determined by multiple factors (slope, slope aspect, altitude). Temperature also affects humidity, and humidity also has an impact on the occurrence of king boletes. The mycelium of the king bolete grows at 18°C-30°C, but the optimum temperature is 24°C-28°C; its fruiting bodies can grow and develop within the range of 5°C-28°C, and the suitable temperature for fruiting body formation is 16°C-24°C. Below 12°C, fruiting bodies are not easily formed.

2. Soil

King boletes are mostly concentrated between 300 m and 600 m above sea level, and also grow at 200 m or 700 m above sea level, but in very small numbers. Because altitude is a marker factor of mountain climate, that is, with different altitudes, temperature, humidity, air, light intensity, soil, and vegetation all change accordingly. Soil is the substrate for the life of king boletes and their host plants, and the soil structure, air permeability, and pH are all closely related to the growth of king boletes. Surveys have found that the soil near king bolete production areas is generally mountain loess, yellow earth, gray sandy soil, mountain yellow-brown earth, dark brown earth, purple soil, and yellow sandy soil, and especially in soil layers with thicker litter, loose texture, and fertility, king boletes grow better.

3. Moisture

Alternating rain and clear weather, or clear days with rain at night, is most favorable for fruiting body formation, while an environment with little rain and low humidity is not favorable for fruiting body formation. During the mycelium growth stage, the suitable soil water content is about 60%, while during the fruiting body growth stage, the suitable relative humidity is 80%-90%.

4. Light

The mycelium growth of king boletes does not require light, while the formation of fruiting bodies requires stimulation by a certain amount of scattered light. King boletes mostly occur in woodland with 70% shade and 30% sun or half shade and half sun with scattered light. They rarely occur in places with dense vegetation, heavy shade, deep ditch edges, or overgrown weeds; where sunshine duration is long and vegetation is sparse, fruiting bodies also rarely occur. Different canopy densities within the forest lead to obvious differences in fruiting body occurrence. King boletes grow at canopy densities between 0.6 and 0.9, while at canopy densities below 0.5 or above 0.9, there is almost no growth or very little occurrence. Under forest with a canopy density of 0.7-0.9, the occurrence of king boletes is greatest. Light and humidity differ noticeably under different canopy densities, and the occurrence of king boletes requires a certain amount of scattered light, so in dense forest with greater canopy density, the amount occurring is relatively reduced.

The yield of boletes is very scarce. At present, artificial cultivation techniques are relatively limited, and few people cultivate them. Currently, most boletes are wild.