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What are the key factors to pay attention to during the cultivation period of white shimeji mushroom?
2025-07-05
What are the key factors to pay attention to during the cultivation period of white shimeji mushroom?
1. Colonization period
After inoculation, the cultivation basket is put on the rack by the racking machine and enters the culture room for spawn cultivation. Liquid strains germinate quickly, the mycelium turns white within 48 hours, the mycelium can be seen at the bottom of the bag on the 5th to 6th day, the mycelium at the bottom of the bag turns white on the 7th to 8th day, and the mycelium on the surface and the bottom of the bag is full on the 10th to 12th day. The first culture time generally does not exceed 15 days. In the early stage of spawning, due to the low heat generation, the room temperature is maintained at 20~22℃, and the temperature in the package room is not higher than 24℃ in principle. Ensure good air circulation, keep the CO2 concentration below 0.3%, and cultivate in the dark.
After inoculation, the cultivation basket is put on the rack by the racking machine and enters the culture room for spawn cultivation. Liquid strains germinate quickly, the mycelium turns white within 48 hours, the mycelium can be seen at the bottom of the bag on the 5th to 6th day, the mycelium at the bottom of the bag turns white on the 7th to 8th day, and the mycelium on the surface and the bottom of the bag is full on the 10th to 12th day. The first culture time generally does not exceed 15 days. In the early stage of spawning, due to the low heat generation, the room temperature is maintained at 20~22℃, and the temperature in the package room is not higher than 24℃ in principle. Ensure good air circulation, keep the CO2 concentration below 0.3%, and cultivate in the dark.
2. Fever period
As the spawning time increases, the amount of mycelium increases, and the heat generated by mycelium respiration increases. At this time, the culture rack needs to be transferred to the culture room with a higher wind speed for cultivation. Pay attention to the density of placement during the cultivation process to ensure that there is enough spacing between the culture racks to avoid local high temperature due to poor heat dissipation.
The room temperature is controlled at 20~22℃, the room temperature is 23~25℃, the air humidity is controlled at 60%~70%, and the CO2 concentration is controlled below 0.5%. Increase the internal circulation to ensure uniform temperature, humidity and oxygen in the culture room. The entire culture room needs to be filtered through primary/medium efficiency filters to ensure environmental cleanliness. No light is required during the spawning and cultivation period. The mycelium is generally fully grown in 28~32 days, and can be transferred to the post-ripening period warehouse after about 50 days of cultivation in the fever period warehouse.
3. Post-ripening period
Due to the weak vitality of the mycelium, the white shimeji mushroom requires a longer post-ripening period for the degradation and utilization of the culture medium. During this period, the heat generated by the mycelium decreases, so it is necessary to maintain an appropriate temperature to allow the mycelium to ensure the activity of the enzyme to decompose the nutrients. The appearance of the mycelium bag is that the mycelium gradually turns slightly yellow. The room temperature during the post-ripening period is controlled at 21~23℃, the room temperature is 24~25.5℃, the air humidity is controlled at 65%~75%, and the CO2 concentration is controlled at 0.3%~0.5%. The mycelium of white jade mushroom can complete the post-maturation after 110-120 days of inoculation. Some companies often extend the age of the mushroom to 120 days or even longer to ensure the degree of post-maturity.
The physical and chemical indicators of the cultivated white shimeji mushroom bags should be tested to determine the degree of post-maturity. Generally, the pH is required to be around 5.5 and the moisture content is not less than 70%. The bags with good post-maturation feel soft, slightly yellow in appearance, and have good consistency from top to bottom. If the expired cultivation bag fails to complete post-maturation due to bacterial contamination, water accumulation at the bottom of the bag, unqualified pH, serious pore clogging by mycelium, etc., the post-maturation period can be appropriately extended. In serious cases, the yield and quality will be affected.
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Henan Joconn Machinery Co., Ltd. is an enterprise specializing in the production of mushroom equipment. It is engaged in the development, production and application of machinery and equipment for mushroom growth production lines.