Proceedings of the International scientific and practical conference ―Education and Scientific Progress‖ (April 24-26, 2026) / Publisher website: www.naukainfo.com. – Manchester, United Kingdom, 2026. - 218 p.

211 at (22–25) °C for rapid growth of the mycelium. The cover soil was watered daily so that water passed through it but did not wet the top layer of compost with the mushroom mycelium. Approximately 2 weeks after the top dressing, the mycelium reached the surface of the cover soil. At this time, the temperature in the room was reduced to 18 ° C by ventilation. For 2–3 days after this, watering was continued. However, immediately after the formation of fruiting body embryos - primordia, which falls on the 15–17th day from the moment of applying the covering soil, watering was stopped. During this period, the room was ventilated: the CO2 concentration should not exceed 0.2%. When the fruiting body embryos reached the size of a pea, watering was resumed. The water consumption rate was 1 dm 3 per 1 m 2 per day (in two doses). The mushroom began to bear fruit 21–23 days after budding. Fruiting bodies appeared periodically. This is called the waves of fruiting in mushroom growing. It is due to the fact that after the appearance of the maximum number of mushrooms and their collection, the mycelium is replenished with nutrients and water for the appearance of the next wave, which begins in 6–10 days. The first two waves are the most productive. During the fruiting period, the optimum air temperature was – 16 ºС, relative humidity – 85–90%, CO2 concentration – up to 0.1%. To ensure optimal gas regime parameters, ventilation of the room is required at the rate of 3–4 m 3 /m 2 h. The harvest period lasts 30–60 days, during which 5–6 waves are formed. However, the first three waves, which end on the 30–40th day, provide 70–80% of the total harvest. Therefore, extending the harvest period beyond these periods is economically inexpedient. When using solutions of cellulase and succinic acid, the chemical indicators of the two-spore champignon are improved due to an increase in the content of: proteins by 12.5%, carbohydrates - 9.0% and fats - 9.0% (P≤0.05). Irrigation of the champignon substrate with water containing 0.01% cellulose and 0.01% succinic acid increases the yield of mushrooms by 14.1%. The greatest economic efficiency in the technology of two-spore champignon under the action of cellulase and succinic acid