Why Should the Substrate Surface of Oyster Mushrooms Be Scraped? Detailed Explanation of Cultivation Techniques
Why should the substrate surface of oyster mushrooms be scraped? What benefits does scraping the substrate surface of oyster mushrooms bring? We hope experienced growers can help explain the reasons and methods. Reasons for scraping the substrate surface of oyster mushrooms: After harvesting two flushes, the substrate surface often becomes severely dry and compacted, with poor air and water permeability, and the mycelium becomes aged and weak, thereby...
Why should the substrate surface of oyster mushrooms be scraped? What benefits does scraping the substrate surface of oyster mushrooms bring? We hope experienced growers can help explain the reasons and methods.Reasons for scraping the substrate surface of oyster mushrooms:
After harvesting two flushes of oyster mushrooms, the substrate surface often becomes severely dry and compacted, with poor air and water permeability, and the mycelium becomes aged and weak. These adverse conditions delay the fruiting time, reduce mushroom yield, or even result in no fruiting at all. Scraping off a layer from the substrate surface can effectively solve the compaction problem and has a very good yield-increasing effect.
Methods for scraping the substrate surface of oyster mushrooms:
Method 1: For substrate surfaces that are severely compacted and have an excessively thick mycelial skin, scrape off a thin layer of the aged mycelial skin across the entire surface.
Method 2: For substrate surfaces that are slightly compacted and have a relatively thick mycelial skin, use a wire to scratch many small grooves in a crisscross pattern until the mycelium is exposed.
Method 3: For bed cultivation, use a bamboo broom to sweep back and forth across the bed surface until the old mycelial skin is broken and the mycelium inside is exposed. For bag cultivation, scrape off the old mycelium at both ends.
Benefits of scraping the substrate surface of oyster mushrooms:
Scraping has an obvious stimulating effect on primordium differentiation and can promote mycelial growth. Generally, new mushroom buds appear after 7 to 10 days.
However, it should be noted that after scraping the substrate surface, the scraped-off old mycelial skin must be removed cleanly to prevent contamination by undesirable microorganisms. At the same time, the exposed new substrate surface should be leveled flat to promote uniform fruiting. In addition, watering should only be done after the mycelium has resumed growth.
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