Pleurotus ostreatus surface scraping bacteria can increase weight
2025-07-22 01:03:30
After harvesting two crops of *Pleurotus ostreatus*, the surface of the growing medium often becomes severely dry and compacted, leading to poor air circulation, mycelial aging, and other unfavorable conditions. These issues can delay the emergence of mushrooms, reduce overall yield, and in some cases, prevent mushroom formation altogether. To address this problem, a technique known as "scraping bacteria" has proven effective in improving productivity and promoting better mushroom growth.
The process involves carefully removing the aged or hardened bacterial layer from the surface of the substrate. When the sclerotization is severe and the fungal mat is too thick, the entire layer of old mycelium should be scraped off completely. For areas that are only slightly compacted but still thick, small grooves can be made across the surface using a wire or similar tool to expose the underlying mycelium. In trampoline cultivation, a bamboo broom can be used to sweep back and forth over the bed, gently scratching away the old mycelium to reveal fresh hyphae beneath. At the same time, the old mycelium at both ends of the bag can also be removed to encourage new growth.
This scraping method has a clear stimulatory effect on the formation of primordia, helping to accelerate mycelial development. Typically, within 7 to 10 days after scraping, new mushroom buds begin to appear. This not only improves the timing of fruiting but also enhances the overall yield and quality of the harvest.
However, it's important to note that after scraping, the old mycelium must be removed from the surface to avoid contamination and the spread of harmful microbes. Additionally, the newly exposed surface should be leveled for a more uniform appearance and easier management. It's also crucial not to mist the area until the mycelium has fully recovered and begun to grow again. By following these steps, growers can significantly improve the performance of their *Pleurotus ostreatus* cultivation and achieve better results.
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