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What is the effect of adding plant ash to oyster mushroom substrate
When cultivating oyster mushrooms on raw substrate, adding an appropriate amount of plant ash to the substrate has certain benefits for the growth of oyster mushrooms. Because plant ash is alkaline, it has a disinfecting and sterilizing function and can inhibit the growth of various contaminating microorganisms. At the same time, plant ash contains various trace elements such as calcium, magnesium, iron and phosphorus, which can increase the nutrient content of the substrate. In addition, plant ash has the effect of absorbing heat and raising temperature, which can create a good growing environment for mycelial growth. The method of adding plant ash to the substrate is simple: just add 3%-4% after the substrate has fully absorbed water.
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Reasons for Slow Mycelial Growth in Oyster Mushrooms and Solutions
During the cultivation and management process, it is necessary to understand the biological characteristics of different varieties and the requirements of the mycelium during its growth and development stages for nutrients, moisture, temperature, light, pH, and other environmental factors. After inoculation (at a 10%-15% inoculation rate), mycelium extending outward from the spawn block can be observed in the culture room within 2-3 days, growing 3-5 cm in 7-10 days, fully colonizing the bag in 20-30 days, and producing mushrooms in 35-45 days. If these standards are not met, the reasons are: (1) The raw materials have been stored for too long and are highly acidic,
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What causes patchy bald spots (mycelial baldness) in oyster mushroom mycelium?
In the growing substrate, some areas grow mycelium while others do not, or the surface grows mycelium but the inside of the substrate does not; this is called "patchy baldness." The main causes are too much water when mixing the ingredients or uneven mixing, inadequate moisture adjustment, substrate blocks that are too large, too thick or too tightly packed, and poor ventilation or excessive temperature after spawning. Prevention and control methods: add water in the right amount, mix the ingredients evenly, do not make the blocks too large, too tight or too thick, and check the substrate temperature frequently to prevent the substrate from overheating through its own fermentation. If "patchy baldness" occurs due to overheating, respawn in time; if it is caused by moisture
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Why oyster mushroom mycelium fails to fruit for a long time after fully colonizing the substrate, and how to fix it
In oyster mushroom cultivation, you sometimes run into bags or blocks whose mycelium grows very well but, after fully colonizing the substrate, produce no mushrooms for a long time. The main causes and remedies are as follows: 1. The oyster mushroom variety does not match the season. The temperature type of the spawn differs too greatly from the air temperature at cultivation time, which is to say the sowing time was chosen poorly. For example, if a medium-to-low-temperature oyster mushroom spawn is sown at the turn of spring and summer, the mycelium fully colonizes just as the hot season arrives, making fruiting very difficult. Remedy: dig a trench in a shady spot, arrange the bags in it and cover them with soil to oversummer; when the autumn cool arrives and conditions are suitable, dig away the soil cover and carry out fruiting management to reduce losses.
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How to prevent diseases in oyster mushroom wall cultivation? Remember these five points
Disinfection treatment of the fill soil When cultivating oyster mushrooms in walls, the fill soil must be clean soil and must be disinfected before use. Two kinds of fill soil should be prepared: one for sealing the edges, for which soil with greater stickiness should be chosen to prevent the mushroom wall from leaking water; the other for internal filling, for which fertile garden soil should be chosen. Whichever kind of soil is used, it must be dug from more than 10 cm below the ground surface and sun-dried for 3-4 days, then mixed evenly with 1% lime and 0.1% carbendazim for disinfection; for the nutrient soil used as internal filling, add an additional 0.5% phosphate fertilizer
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What to Do When Bumps Appear on Oyster Mushroom Caps? Detailed Prevention and Control Methods
This condition generally occurs in winter. The upper part of the mushroom cap, especially the edge, becomes covered with bumps of varying sizes. In severe cases, the entire cap is covered with bumps. Once bumps form, the fruiting bodies grow extremely slowly. This disease affects both the commercial quality and the yield. The main causes of bump formation are: (1) Fires are lit inside the cultivation room to raise the temperature, causing carbon dioxide to accumulate. (2) The cultivation bags are placed near air vents, and stimulation by cold drafts causes disordered cell growth inside and outside the oyster mushroom cap, resulting in bumps. Prevention and control methods: Strengthen ventilation and air exchange, and harvest all oyster mushrooms with bumps.
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Four Practical Ventilation Techniques for Oyster Mushroom Bags
Oyster mushroom bag cultivation has low cost, high efficiency, and is easy to manage, but when tying the bag opening directly with string during bag cultivation, it often causes poor ventilation, affects mycelial growth, causes contamination, and can even lead to cultivation failure. Here are several ventilation techniques: First, the ventilation plug method. Using materials such as wheat straw and cotton lint, tie them at both ends of the mushroom bag to make ventilation plugs. The size of the plug depends on the size of the bag - large bags use large plugs, small bags use small plugs; it also depends on the mycelial growth temperature - when the temperature is low, the plug can be smaller, otherwise it should be larger. Second, the ring method. You can buy flared rings, put them on
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Why oyster mushroom logs grown with casing soil produce high yields
Bagging and inoculation: Select fresh cottonseed hulls, add 1% gypsum, 1% lime and 0.10% carbendazim, with a material-to-water ratio of 1:1.3-1:1.5. After mixing evenly, pile on a concrete floor to ferment for 3-5 days, then bag. When bagging, first tie one end of the material tube firmly, add a small amount of spawn, then when the material fills half the bag, sow 5-6 pieces of spawn the size of red dates at the edges of the material, then continue filling with material; once the bag is full, sprinkle a layer of spawn on the surface of the material and tie the bag opening firmly. Arranging bags for mycelial growth: The method of arranging bags for mycelial growth
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Simple preservation techniques for oyster mushrooms help you extend storage time
Under normal conditions, oyster mushrooms are difficult to store and have a short shelf life. Two days after harvesting, oyster mushrooms lose freshness sharply due to water loss, the caps turn yellow, and an off-odor appears. During peak fruiting seasons, large quantities of fresh mushrooms flood the market at once, causing mushroom prices to plummet; on the other hand, during off-seasons and in cities far from mushroom-growing areas, there is little mushroom supply and nothing to sell. For this reason, here is a brief introduction to research on oyster mushroom storage and preservation. Method: Harvest oyster mushrooms at 80% maturity, remove diseased, insect-damaged, and damaged mushrooms, place them in a clean, cool, ventilated area, and use an exhaust fan for 1-1.5 days of air-cooling pretreatment, then
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Processing and Storage Techniques for Oyster Mushrooms
Apart from being sold fresh in part, oyster mushrooms can also be processed and stored; many processing methods are used, of which the main ones fall into two categories: drying and salting, briefly described as follows: 1. Drying method: generally uses air-drying, sun-drying, oven-drying, etc. Sun-drying is an economical method that requires no equipment. They can also be air-dried or wind-dried. However, this method is limited by weather conditions. In production, the oven-drying method is commonly used: build a drying room, with charcoal fire or coal briquettes as the heat source, and refer to the form of a tobacco curing barn when drying. There must be no smoke in the room, and exhaust equipment is required. Initially the temperature is controlled at
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