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How to cultivate the growing blocks in shiitake mushroom block cultivation (Part 1)
A well-cultivated growing block does not grow mold, its mycelium grows vigorously, and its color quickly changes from pale yellow to white, then from white to reddish-brown with a glossy sheen. This is the foundation for a high shiitake yield. 1. Mycelial healing stage: Because the mycelium is damaged to some extent when the bottles are dug out and pressed into blocks, there must be a process of recovery and healing. The key management points at this stage are: maintain a suitable temperature (around 24°C), humidity and fresh air, and prevent mold from occurring. The key is to control the timing and frequency of ventilation according to changes in air temperature. Ventilation includes two
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Key Technical Points for Autumn Management of Shiitake Mushroom Bag Cultivation
Shiitake mushrooms have a long fruiting period, spanning three seasons - autumn, winter and spring - about 10 months. Generally, inoculation is done in August to September, and fruiting occurs in November to December. Shiitake mushrooms that grow before December are called autumn mushrooms. In shiitake mushroom bag cultivation, autumn management is very important. The key techniques are as follows: 1. Indoor mycelium incubation. It takes more than 60 days from inoculation to physiological maturity for shiitake mushrooms. After inoculation, they should be promptly moved into the incubation room for culturing. The bags are arranged in a "well" pattern, stacked 8 to 9 layers high, with the room temperature controlled at around 25°C and relative humidity kept below 70%
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Detailed Explanation of Key Points of Shiitake Mushroom Bag Cultivation Techniques
1. Raw Material Preparation (1) Wood Slicing Insert wood segments with a moisture content above 20% into the feed inlet of the slicer, cutting them into chips about 4 mm thick with a cross-section of 60×20 mm. (2) Raw Material Grinding Put sun-dried wood chips, or bagasse, oil-tea camellia shells, and straw stalks into a dedicated grinder or feed grinder (with a special iron sieve of about 2 mm mesh), processing them into powder. 2. Culture Material Formulation (1) Culture Ratio Main materials such as sawdust and bagasse account for 7
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Key Technical Points for Overwintering Management of Shiitake Mushroom Bags
After the Winter Solstice arrives, temperatures will drop noticeably. Regarding how to do a good job of overwintering management for shiitake mushrooms, the following technical suggestions are hereby put forward for mushroom growers' reference: 1. Remove the shade net originally used for cooling and heat insulation so that sunlight shines directly onto the plastic greenhouse, thereby raising the daytime temperature inside the greenhouse. 2. Reduce the number of ventilation times around the greenhouse, exchanging the air once every other day. For the small arched film inside the greenhouse, apart from when picking shiitake mushrooms, there is generally no need to lift the film for ventilation. After one flush of mushrooms is finished, let the mushroom bags dry and ventilate for 7-10 days, then inject water to stimulate pinning. During the pinning stimulation period, pay attention to heat preservation. Inside the mushroom shed
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What to Do About Contaminated Shiitake Mushroom Bags? A Detailed Guide to Practical Countermeasures
During indoor incubation, the mushroom bags should be turned 4 to 5 times: the first time 6 to 7 days after inoculation, and thereafter once every 7 to 10 days. When turning the bags, carefully check for contaminating microorganisms and deal with them promptly. In cases of mild contamination, where only scattered dot-like or filamentous small colonies of contaminants appear at the tied opening or in the folds of the bag and have not spread, use a syringe to draw up a mixture of 50 ml of 75% alcohol plus 30 ml of 36% formaldehyde, inject it into the affected area, and gently massage the surface with your fingers so the solution penetrates into the contaminant cells, then seal the injection hole with adhesive tape. Contamination at the inoculation holes
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Color conversion of shiitake mushroom logs is crucial and growers must not neglect it
When the shiitake mycelium has fully colonized the bag and reached a certain physiological maturity, the aeration, light, temperature and humidity of its growing environment are artificially regulated so that all the aerial mycelium on the surface of the substrate lies down and secretes pigments; the color of the substrate surface gradually changes from dense white and pale white to light brown and then to brown and dark brown, finally forming a brown fungal film that combines multiple functions such as insulation, moisture retention, light exclusion and resistance to contaminating microorganisms. This process is called color conversion. The depth of color and the thickness of the fungal film in shiitake log color conversion are closely related to the fruiting time, fruiting yield and mushroom quality. Under general conditions
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Detailed Explanation of the Key Technical Points for Color-Turning Management of Shiitake Mushroom Logs
The color-turning management of mushroom logs can be divided into two methods: color turning after bag removal and color turning within the bag. Current production is mostly aimed at obtaining flower shiitake or high-quality thick shiitake, so the within-bag color-turning method is mostly adopted. Its basic management is as follows: 1. Perforation for oxygen enrichment: after the mycelium has fully colonized, the substrate is filled with mycelium, and its metabolic rate increases greatly. Perforation serves the purpose of increasing internal oxygen, expelling waste gas, boosting metabolism and dissipating part of the moisture, and is the first step of color-turning management. 2. Promoting separation of the film from the walls: through perforation, moving, and so on, prompt the plastic film to separate from the substrate. For early-maturing strains with a short colonization time
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What to Do When Shiitake Mushroom Logs Are Burned by Heat and Rot? Cause Analysis and Preventive Measures
From late June to early August 2003, Lishui City, Zhejiang Province experienced a historically rare continuous high-temperature and low-rainfall weather lasting more than 40d, with temperatures exceeding 40°C for 14d, among which the urban area of Lishui reached 43.2°C, breaking the historical extreme and ranking first in the country. This brought serious impacts on people's production and daily life, especially dealing a devastating blow to shiitake mushroom production. The mycelium of shiitake mushroom logs, harmed by high temperatures, exhibited phenomena such as black liquid oozing, rotting and log disintegration. Of the city's 350 million bags of flower shiitake mushroom logs, 150 million bags rotted due to high-temperature mycelium burning, accounting for
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What to Do When Shiitake Mushroom Logs Rot? Detailed Analysis of Causes and Control Techniques
In recent years, varying degrees of log rot have appeared in some shiitake-producing areas, causing waste of resources and economic losses for mushroom growers, and in some areas it has seriously threatened the development of the shiitake industry. For example, in Xianliang Town, Qingyuan County, Zhejiang Province, the log rot rate in 1999 reached 17%, with some individual growers exceeding 50%, resulting in heavy losses. In response, we have conducted dedicated research since 1999 and have preliminarily identified the causes of rot and control techniques. 1. Causes of log rot. Log rot mostly occurs in old mushroom-producing areas with many years of cultivation, and its fundamental
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Detailed Explanation of Technical Measures for Safely Overwintering Shiitake Mushroom Logs Through Summer
Key Management Points for Safely Overwintering Mushroom Logs Through Summer. Outdoor summering. Outdoor shade shelters have good ventilation and cool down quickly, therefore, using outdoor shade shelters for mycelium running can effectively reduce the occurrence of "mushroom burning." Specific measures taken for summering and mycelium running using outdoor shade shelters: First, build trellises around the shade shelter and plant vine crops such as pumpkins and luffa to improve the shading effect; Second, install automatic rotating tap water sprinklers or spray pipes on the shelter roof, and spray water to cool down from 10 AM to 4 PM every day; Third, dig interconnected trenches 20 cm wide and 30 cm deep around the inside of the shelter and on both sides of the walkways, and run flowing water through the trenches to cool down.
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