Latest Analysis of Common Problems in King Oyster Mushroom Cultivation
The king oyster mushroom (Pleurotus eryngii) is a widely renowned edible fungus worldwide, combining edible and medicinal uses in one, with firm, thick flesh that is tender and delicious. It has rich nutritional value, and in China 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 China, but there are many common problems in the process of cultivating king oyster mushrooms. Let me introduce them to you below!
1. Contamination of the mushroom bags
Contamination of the mushroom bags is one of the most common problems in king oyster mushroom cultivation. Bag contamination causes the king oyster mushrooms to be disturbed by miscellaneous bacteria, affecting normal growth and leading to reduced planting returns. The main causes of bag contamination are inadequate sterilization work, not watering enough during mixing so that the material has a dry core, and then not completely expelling the air during sterilization, leaving cold air in the sterilization pot and blocking heat circulation. Or insufficient sterilization time and other factors can also lead to bag contamination.
2. Slow mycelial growth
Slow mycelial growth extends the growth cycle of king oyster mushrooms, leading to reduced yield and affecting planting returns. Slow mycelial growth may be due to poor vitality of the spawn, so we must pay attention to selecting good spawn when planting. Then during cultivation, pay attention to the tightness of the bag filling and the water content, ensuring sufficient oxygen, as insufficient oxygen is also a main cause of slow mycelial growth. Finally, during spawn running, pay attention to temperature, keeping it above 20 degrees; poor permeability or unsuitable pH are also causes of slow mycelial growth.
3. Deformed mushrooms
Deformed mushrooms are also a relatively common problem. Deformed mushrooms seriously affect the appearance of king oyster mushrooms, reducing or even causing them to lose commercial value. This is mainly due to squeezing the bags during sterilization, causing the bags to deform and produce gaps, and then due to unsuitable temperature, excessive light and various human factors, mycelia on the sides form primordia and develop into fruiting bodies. After discovering deformed mushrooms, promptly pinch and press the mushroom buds to prevent continued growth and avoid consuming more nutrients.
4. Fruiting bodies too small
Small fruiting bodies of king oyster mushrooms seriously reduce yield and affect planting returns. The main reason for small fruiting bodies is failure to thin the buds in time. After the primordia of king oyster mushrooms differentiate, mushroom buds grow on the sides of the bags, but because there is not enough nutrition and growing space, these buds cannot continue to grow. However, they 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 great harm to king oyster mushrooms and affects the growth of the fruiting bodies. After excessive mycelial growth, the fruiting bodies gradually shrink, and in severe cases the fruiting bodies turn yellow and die. Excessive mycelial growth is mainly caused by unsuitable temperature during fruiting; a sudden rise in temperature makes it impossible for the king oyster mushrooms to adapt in time, providing conditions for mycelial growth. Then, when nutrients are sufficient, the mycelia absorb more nutrients and water, and may even cause nutrients from the fruiting bodies to flow to the mycelia, leading to excessive mycelial growth and 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 common problems in king oyster mushroom cultivation. Cultivating king oyster mushrooms requires careful management. Only by doing a good job in all aspects of management can we ensure normal growth of king oyster mushrooms, increase their yield, and expand our own planting returns. That is all for today's introduction. This article is for reference only, and I hope it can help everyone!