What are the common problems in the process of king oyster mushroom cultivation?
The king oyster mushroom (Pleurotus eryngii) is a kind of edible fungus that has long been famous around the world. The king oyster mushroom combines edible and medicinal uses in one, and its flesh is firm and thick, fresh and tender, and delicious. It has rich nutritional value, and in our country it can be used to make 40-50 different dishes, with various effects such as lowering blood lipids and cholesterol and promoting digestion. It has a wide cultivation area in our country, but there are many common problems in the process of cultivating king oyster mushrooms. Now let the editor introduce them to you below!
1. Contamination of the fungus bags
Contamination of the fungus bags is one of the most common problems in king oyster mushroom cultivation. Contamination of the fungus bags will cause the king oyster mushrooms to be disturbed by miscellaneous bacteria, affecting normal growth and leading to a decline in planting benefits. The main causes of fungus bag contamination are inadequate sterilization work, not watering enough during mixing so that the material has a dry core, and then not thoroughly exhausting the air during sterilization, resulting in the presence of cold air in the sterilization pot and obstructed heat circulation. Or insufficient sterilization time and so on can all lead to contamination of the fungus bags.
2. Slow mycelial growth
Slow mycelial growth will prolong the growth cycle of the king oyster mushroom, leading to reduced yield and affecting planting benefits. Slow mycelial growth may be due to poor vigor of the spawn, so when planting we must be sure to select good spawn. Then during cultivation, pay attention to the tightness of the fungus bag filling and the water content, ensuring sufficient oxygen; insufficient oxygen is also a main cause of slow mycelial growth. Finally, during the mycelium-running stage, pay attention to the temperature and keep it above 20 degrees; excessively poor permeability or unsuitable pH are also causes of slow mycelial growth.
3. Malformed mushrooms
Malformed mushrooms are also a relatively common problem. Malformed mushrooms will seriously affect the appearance of the king oyster mushroom, reducing or even causing the king oyster mushroom to lose its commercial value. This is mainly due to squeezing the fungus bags during sterilization, causing the bags to deform and produce gaps, and then due to unsuitable temperature, excessive light and various human factors, the side mycelium forms primordia and develops into fruiting bodies. After discovering malformed mushrooms, pinch and press the mushroom buds in time to prevent them from continuing to grow and to avoid consuming more nutrients.
4. Fruiting bodies too small
Small fruiting bodies of the king oyster mushroom will seriously reduce yield and affect planting benefits. The main reason for small fruiting bodies of the king oyster mushroom is failure to thin the buds in time. After the primordia of the king oyster mushroom differentiate, mushroom buds will grow on the sides of the fungus bag, but because there is not enough nutrition and growing space, these mushroom buds cannot continue to grow. However, they will continue to consume nutrients, causing the fruiting bodies to lack nutrition and be unable to expand. Therefore, during cultivation we must thin the buds in time to prevent excessive nutrient consumption and affect the growth of the fruiting bodies.
5. Excessive mycelial growth
Excessive mycelial growth causes relatively great harm to the king oyster mushroom and affects the growth of the fruiting bodies. After excessive mycelial growth, the fruiting bodies will gradually shrink, and in severe cases the fruiting bodies will yellow and die. Excessive mycelial growth is mainly caused by unsuitable temperature during mushroom fruiting; a sudden rise in temperature makes it impossible for the king oyster mushroom to adapt in time, providing conditions for mycelial growth. Then, when nutrients are sufficient, the mycelium's absorption of nutrients and water increases, and may even cause the nutrients of the fruiting bodies to flow to the mycelium, leading to excessive mycelial growth and the death of the fruiting bodies. Therefore, we must control the temperature of the mushroom shed well to prevent excessive mycelial growth.
The above is a brief introduction to the common problems in king oyster mushroom cultivation. The cultivation of king oyster mushrooms requires careful management by us. Only by doing a good job in all aspects of management can we ensure the normal growth of king oyster mushrooms, increase the yield of king oyster mushrooms, and expand our own planting benefits. That is all for today's introduction. This article is for reference only, and we hope it can help everyone!