A Complete Analysis of the Latest Growing Environment for Nameko Mushrooms

The Nameko mushroom is also called the slimy mushroom. It originated in Japan, and is now cultivated in many places around the world. China introduced and began cultivating it in the 1970s. Because its surface has a layer of slime that makes it slippery, it is called the slimy mushroom. It is a world-famous cultivated edible fungus. So what kind of environment does this edible fungus mainly grow in, and where is it suitable to cultivate? What requirements does artificial cultivation place on changing the culture medium? Please continue reading below to find out.

1. Nutritional Conditions

In artificial cultivation, the fungus relies on the culture medium to provide nutrients for growth, so the culture medium must be selected carefully. Generally, sawdust from hard broadleaf miscellaneous trees is chosen to make the culture medium; sawdust from coniferous trees is not suitable for cultivation. Wheat bran also needs to be added, as this can provide a source of vitamins and nitrogen. Some artificial nutrient preparations can also be added.

2. Temperature

The mycelium can generally grow above 4 degrees and below 32 degrees, but the most suitable range is between 22 degrees and 28 degrees. It is not tolerant of high temperatures, so above 30 degrees it grows very slowly, and above 32 degrees it may stop growing. It is more tolerant of low temperatures than other fungi; generally below 15 degrees it can still produce mushrooms and form fruiting bodies. So generally, at temperatures between 6 and 0 degrees, mushrooms can still form.

3. Air and Moisture

The slimy mushroom is an aerobic edible fungus and needs frequent ventilation to release carbon dioxide from the shed and bring in fresh air. Carbon dioxide must not be allowed to accumulate. Frequent ventilation is needed throughout the entire growth stage. For moisture, the general moisture content of the culture medium for mycelial growth is about 60% to 65%, and the air humidity naturally follows suit; after fruiting bodies form, the moisture content increases to about 70%, and the air humidity should be above 80%. Because the mycelium does not need that much moisture and is prone to oxygen deprivation, after mushrooming it needs a bit more moisture, so increase it somewhat.

4. Light and pH

Mycelial growth likewise does not require light, but during the stage of fruiting body formation, some light is needed to make fruiting bodies grow more easily. Scattered light is needed regularly; it cannot be completely dark and lightless, and the light can be adjusted. The culture medium is suitable for growth in a slightly acidic medium, but it cannot be too acidic. Around 6.0 is best.

The Nameko mushroom is an aerobic edible fungus. Cultivation requires adjusting temperature and humidity at every stage, and also maintaining relatively good air and moisture, as well as adjusting light, to achieve suitable environmental conditions.