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.

210 sieve with a hole diameter of 3–4 cm, after which they were disinfected. For this purpose, a formaldehyde solution was used (10 dm3 with a mass concentration of 3– 4% per 1 ton of cover soil) or the mixtures were steamed for 6–10 hours at a temperature of 60–70ºС [7, р. 275]. Inoculation of the substrate with mycelium was carried out at a temperature of the latter 25–28 ºС. Depending on the type of mycelium used, the rate of its sowing is determined. 500 g of compost mycelium or 300–400 g of grain mycelium are applied per 1 m 2 . It should be noted that an average of 100 kg of substrate is placed per 1 m 2 of a rack or bed. The bulk of the seed mycelium, about 80%, is applied to a depth of 12–15 cm, the rest is evenly scattered over the surface and slightly compacted. After inoculation, the surface was covered with paper, which was moistened daily. The substrate temperature during this period was maintained within 22–25 ºС, the air temperature was 1–3 ºС lower. The humidity of the compost was about 68%, the air - 93-98%. During the growth of the mycelium, fresh air can not be supplied to the cultivation room. The mycelium grew well even at a 2,0% concentration of CO2. Growth phases: I – mycelium growth; II – transition from vegetative growth to fruiting (started approximately 2 weeks after applying the covering material and ended with the beginning of fruiting); III – fruiting. Well-prepared compost was permeated with white, thick mushroom mycelium for 14–20 days. After that, the paper was carefully removed and thrown away. Peat (90%) with the addition of sand and chalk (5% each) was used to prepare the cover soil. Cover mixtures were also prepared from sandy and light loamy soils, river sand, perlite, zeolite, etc. The components were mixed and sieved through a sieve with a hole diameter of 3–4 cm, after which they were disinfected. For this purpose, a formaldehyde solution was used (10 dm 3 with a mass concentration of 3– 4% per 1 ton of cover soil) or the mixtures were steamed for 6–10 hours at a temperature of 60–70ºС. The cover soil was applied to the surface of the compost in an even layer 3–5 cm thick. In the first week after its application, the compost temperature was maintained