After harvesting oyster mushrooms for two flushes, the substrate surface needs to be scraped.
Growing oyster mushrooms on peanut shells can increase economic returns by 9.67%-21.82% compared with cultivation using rice straw. The following steps should be followed in the process. 1. Raw material processing and formula: crush the peanut shells into small particles and sun-dry them for 2-3 days before use. The formula is: peanut shells 90%, wheat bran or rice bran 8%, lime 3%, superphos...
After oyster mushrooms are harvested for two flushes, the substrate surface often becomes severely dry and compacted, with poor air and water permeability and aged, weakened mycelium, which delays fruiting, reduces mushroom yield, and may even stop fruiting altogether. Scraping off a layer of the substrate surface can effectively solve the compaction problem and has a very good yield-increasing effect.Methods for scraping the substrate surface: For a substrate surface that is severely compacted and has an overly thick mycelial skin, scrape off a thin layer of the aged mycelial skin over the entire surface. For a slightly compacted substrate surface with a relatively thick mycelial skin, use a wire to draw many small crisscrossing grooves until the mycelium is exposed. 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.
Scraping has a clear stimulating effect on primordium differentiation and can promote mycelial growth; generally, new mushroom buds appear after 7-10 days. However, note that after scraping the mycelium from the substrate surface, the scraped-off old mycelial skin must be removed cleanly to avoid contamination by competing microorganisms. At the same time, level the newly exposed substrate surface to help mushrooms fruit uniformly. In addition, watering should wait until the mycelium has resumed growth.