What technical points should be paid attention to when growing Pleurotus ostreatus indoors?

Pleurotus ostreatus is welcomed by people because of its delicious taste, short production cycle and easy cultivation, especially in Northeast China, where the climate is cold in winter and spring and fresh vegetables are scarce. If Pleurotus ostreatus is planted indoors and supplied to the market, it is a good way to get rich. But indoor cultivation of Pleurotus ostreatus, a prominent problem is that the air temperature is not easy to control, the surface layer of the culture material is easy to dry, affecting the production of Pleurotus ostreatus, the author thinks that the effect of covering soil cultivation is good through repeated experiments.

1. Mushroom selection. Mushroom can choose abandoned or temporarily unused houses (must be repainted with lime water), and have heating and ventilation facilities. Bedstead is set indoors, bedstead layer distance is about 60cm, and the lowest layer is 20~30cm away from the ground. Can also be used box or potted plants. Every cubic meter indoor fumigation with 10ml formaldehyde and 5g potassium permanganate mixture.

2. Ingredients and sowing. Raw materials can be selected from sawdust, wheat straw, rice straw, corn cob, corn stalk, bean stalk, etc., and some nutritional raw materials need to be added, prepared according to the general method, and disinfected (generally, when preparing culture materials, 1/800 carbendazim can be added to effectively inhibit the growth of miscellaneous bacteria). Sowing can adopt hole sowing or layer sowing, after sowing, leveling and slightly compacting, covering a layer of paper on the material surface and plastic film under the paper to keep warm and moist. Sowing starts from the upper bed frame and goes down layer by layer. The whole process must be strictly disinfected.

III. Management. After sowing, keep indoor temperature at about 24℃ and humidity at about 70%. Check the temperature of the material every day. If it is higher than 25℃, the film should be opened and ventilated to cool down. Bed temperature should be kept at about 24℃. When hyphae grow to 2/3 of culture medium, soil can be covered.

4. Cover soil. Peat soil is the best covering soil. Clay can be used without peat soil. The covering soil should be wet, and the pH value should be adjusted to 7~7.5 first, and then covered on the material surface. It can also be covered with dry soil directly and sprayed with water after covering. The suitable thickness of soil covering is 2~3cm. After covering soil, strengthen management, keep soil moist, increase ventilation, gradually reduce the temperature of mushroom house to 15~17℃, and keep humidity at about 90%.

5. Mushroom production and harvesting. After budding on the bed surface, remove the film, strengthen ventilation and light transmission, control the temperature and keep the soil surface moist. Pleurotus ostreatus can be harvested after growing up. Doors and windows should be opened for ventilation when harvesting. After picking mushrooms, the bed surface should be tidied up, the water should be stopped for 4~5 days, the mycelium should be restored to grow, and then the water should be sprayed to keep the bed surface moist. About a week or so, the mushroom bud can grow again. This is generally available in 3 batches of mushrooms.