What causes low shiitake mushroom yields?

Shiitake mushroom is a type of mushroom that grows on wood, the world's second largest edible fungus, and an important edible and medicinal mushroom species, cultivated in various places in our country. However, many growers often experience low yields, or even total crop failure, during cultivation, which seriously affects the growers' economic returns. So what are the reasons for low shiitake mushroom yields? Let's take a look with Qinnongwang.

1. Improper site selection

Shiitake mushroom has certain requirements for its growing site; the basic requirement is to cultivate it in an environment with bright light, good ventilation, and clean, hygienic conditions, so that it can produce mushrooms and grow normally. If the growing site is in a dark, poorly ventilated, or unhygienic place, shiitake mushroom will not be able to grow normally, and it is also unfavorable for mycelial growth. When fruiting, shiitake mushroom releases a large amount of carbon dioxide; if ventilation is poor, the carbon dioxide concentration in the air will be relatively high and cause poisoning, making normal fruiting difficult or causing deformed growth. Shiitake mushroom also has certain requirements for environmental hygiene. During cultivation, the site must be thoroughly disinfected and sterilized. Especially when inoculating spawn, an aseptic environment must be maintained, otherwise inoculation will fail.

2. Poor substrate

The selection and preparation of the substrate is extremely important, as it is closely related to the yield and quality of shiitake mushroom. Be sure to choose clean, hygienic, and loose raw materials for the substrate. Do not use raw materials that have already been contaminated or caked for cultivation, otherwise the spawn will be contaminated and mycelial growth will fail. When mixing, pay attention to the method. Do not add excessive nitrogen fertilizer such as urea, because after inoculation the nitrogen fertilizer will decompose and release nitrogen gas, which can easily poison the mycelium and cause mycelial growth to fail. Pay attention to the moisture ratio of the substrate; too much or too little water is unfavorable for mycelial growth. In addition, after the substrate is prepared, disinfection must be done well.

3. Improper spawn selection

When choosing spawn, it should be selected according to climatic conditions. For example, choosing a high-temperature-type spawn in winter, or choosing a low-temperature-type spawn in spring, will prevent the spawn from growing at a suitable climate temperature and cause mycelial growth to fail. Do not choose spawn that has already aged or been contaminated, as these easily cause slow mycelial growth or no mycelial growth, delayed fruiting, or no fruiting. Therefore, when choosing spawn, be sure to select spawn suitable for cultivation according to the local climate and environment.

4. Improper management

Management in the later stage of shiitake mushroom cultivation involves temperature, light, moisture, and ventilation. During the fruiting period, if light is insufficient, fruiting will be slow and yields will be low. Air humidity is also extremely important. If humidity is low, young mushrooms will be stifled to death, while directly spraying water to increase humidity will cause shiitake mushrooms to rot. The best way to increase humidity is to spray water mist. If ventilation is poor, carbon dioxide and toxic gas levels will be relatively high, causing shiitake mushroom poisoning or deformed growth. In addition, failure to harvest timely after shiitake mushrooms mature will also affect yield.

The above are the reasons for low shiitake mushroom yields brought to you by Qinnongwang. The editor has introduced the reasons for low shiitake mushroom yields from several aspects, hoping to help you. For more related knowledge, please stay tuned to Qinnongwang.