How to Induce Budding in Bag-Cultivated Shiitake Mushrooms? Key Technical Methods Explained
How to induce budding in bag-cultivated shiitake mushrooms? What should be noted when inducing budding in shiitake mushrooms? Experienced netizens are asked to help explain. When bag-cultivated shiitake mushrooms are induced to fruit by water injection or soaking the bags, the water content inside the mushroom logs becomes too high; some fail to produce mushrooms for a long time after induction, missing the season for cultivating flower shiitake, which affects yield, quality and returns. Zhongdi Network...
How to induce budding in bag-cultivated shiitake mushrooms? What should be noted when inducing budding in shiitake mushrooms? Experienced netizens are asked to help explain.When bag-cultivated shiitake mushrooms are induced to fruit by water injection or soaking the bags, the water content inside the mushroom logs becomes too high; some fail to produce mushrooms for a long time after induction, missing the season for cultivating flower shiitake, which affects yield, quality and returns. Zhongdi Network has compiled six methods for inducing budding in bag-cultivated shiitake mushrooms, listed below for netizens' reference.
Method 1, Directional Piercing Method:
Use 4 iron nails 8-10 cm long and nail them into a wooden board 1.5 cm thick, 45 cm long and suitably wide for gripping; the nails must be driven in completely. Use the nail row to pierce two rows on the spawning surface of the mushroom log being induced to fruit, with 2 rows of 8 holes on one side.
Method 2, Vertical Bag Placement Method:
Place the pierced mushroom logs upright into a soaking tank or large barrel, with at most 2 layers. Press them down on top with a bamboo or wooden rack, then place stones or other heavy objects on top to prevent the mushroom logs from floating up.
Method 3, Nutrient Solution Budding Induction Method:
Using a measured bucket or tank, prepare a 0.3%% urea solution, inject the solution into the tank where the mushroom logs have been arranged, submerging the mushroom logs by 5-10 cm, and maintain the water level for 1 hour.
Method 4, Soaking Bags at Fixed Times:
Soak the mushroom logs submerged for 1.5-3 hours. Among these, soak for 1.5-2 hours for the first major flush; after the second flush, soak the bags for 2-3 hours each time. After soaking for 1.5 hours, begin sampling to check the amount of water absorbed; a water content of 65%%-70%% around the nail holes and 45%%-60%% in other parts is suitable, with the mushroom logs showing a state of excessive water content in some parts and relatively low water content in others.
Generally, the weighing method is used to determine the amount of water absorbed; the weight after the first soaking is 100%%-110%% of the weight of the mushroom log at the time of cultivation, and for spring-planted bags it is about 90%%-105%% of the weight at the time of cultivation. Thereafter, reduce the soaking weight by about 15%% for each flush.
Method 5, Budding Induction by Temperature Difference:
Choose a sunny day with a day-night temperature of 8°C-20°C to soak the bags and induce fruiting; a low temperature below 12°C must occur at night, and medium-temperature strains require a low temperature of 14°C-16°C. Pierce a line-shaped drainage hole at one end of the soaked mushroom log, with the drainage hole end facing downward, and arrange them on sunny, wind-sheltered ground that does not accumulate water; cover tightly with plastic film, and place a thermometer on top of the mushroom logs under the film.
Use sunlight exposure; when the sunlight temperature is below 15°C or on cloudy days, heating may be added to promote the temperature under the film reaching 28°C-32°C, maintain for 2-4 hours, uncover the film for ventilation, then use the natural low temperature at night of about 12°C to stimulate for 4-6 hours. As long as the temperature control is accurate, 1 time is sufficient. If the high and low temperatures are insufficient, it may be carried out continuously for 2-3 times.
Method 6, Budding Cultivation by Regulating Temperature:
Mushroom logs that have been stimulated by piercing, soaking and temperature difference may remain in place, covered tightly with plastic film, with the edges required to be pressed down firmly. Under conditions of 18°C-24°C, the mushroom bags produce large numbers of mushroom buds after 2-3 days. Generally, starting from the evening of the second day or the morning of the third day, select the mushroom logs with more mushroom buds and place them on the lowest layer of the fruiting shed. Thereafter, select 1 batch every 12-24 hours and place them into the fruiting shed from bottom to top, completing all of them in 2-3 days.
Precautions for inducing budding in shiitake mushrooms:
Precaution 1: The water content of mushroom logs induced to fruit by the above methods should be 35%%-55%%. For mushroom logs with a water content below 35%%, a small amount of water should be added in advance to nourish the mycelium; for mushroom logs with a water content above 55%%, the soaking time should be appropriately shortened or they should not be soaked.
Precaution 2: During the entire heating process of budding induction by temperature difference, checks should be made once every 30 minutes. If it exceeds 35°C, cooling should be carried out immediately.
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