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Detailed Explanation of Straw Mushroom Grading Standards and Processing Techniques
I. Straw Mushroom Grading Standards: 1. Fresh mushroom grading: Grade 1: mushroom cap circumference 8-11 cm, solid. Grade 2: mushroom cap circumference 6-8 cm, solid. Grade 3: mushroom cap circumference 6-8 cm, wrapper slightly split. Broken-cap: cap cracking not exceeding 0.5 cm. Substandard: mushroom cap circumference 5-6 cm, with some broken caps. 2. Dried mushroom grading: base trimmed, free of sand and impurities, cap surface mouse-gray or grayish-white, flesh white. No mushrooms with opened veil or expanded cap, moisture content 12%, fragrant, free of insect damage and mold, free of scorched yellow or blackened areas.
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Analysis of the Reasons for the High Economic Returns of Winter Cultivation of Straw Mushrooms
Straw mushrooms (Volvariella volvacea) are a type of fungus that thrives in high temperature and high humidity, suited to growing in an environment of constant temperature and stable moisture. Therefore, moving the heat-loving straw mushroom to winter cultivation requires growing it in greenhouses with good insulation capacity, which increases cost inputs such as heating. However, straw mushrooms produced in winter sell for 2 times the price of those conventionally cultivated in summer, so appropriate adjustments should be made to the substrate formula and cultivation management, among other aspects, in order to increase the input-output ratio and improve economic returns. The main techniques for winter cultivation of straw mushrooms are introduced as follows: 1. Select a suitable substrate formula, build a pile and ferment the straw mushrooms.
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Detailed Explanation of Key Points on Straw Mushroom Harvesting and Processing Techniques
After piling the straw and sowing, mushrooms begin to appear in 10-15 days (as quickly as about one week). The appropriate harvest time for commercial straw mushrooms is when the mushroom buds are about to rupture and the caps inside the volva have not yet opened. The specifications for canning are a diameter of 2 cm or more, a neat mushroom shape, an unruptured outer veil, and an unelongated enclosed stipe. The requirements for making dried mushrooms are a diameter of 4 cm or more and an unruptured outer veil. Those with a ruptured outer veil are slightly lower in quality, and those with opened caps are even worse; the latter can only be sold as substandard fresh mushrooms. For dried mushrooms, the mushroom buds should be cut longitudinally into two connected halves, arranged on a bamboo sieve or wire mesh sieve, placed on the racks of a specially made drying room, and dried over a slow fire. The initial drying temperature is 35-40°C, and as the moisture decreases, the temperature is gradually raised to 60-65°C, until the moisture content of the straw mushrooms reaches 12-13%.
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What to Do About Dead Straw Mushrooms? A Detailed Guide to New Prevention and Control Techniques
I. Causes of Dead Straw Mushrooms 1. Poor coordination between ventilation and moisture retention in the mushroom house. Straw mushrooms are aerobic fungi and need plenty of water; too much ventilation easily leads to water loss and death. Insufficient ventilation easily causes excessive carbon dioxide and death from oxygen deprivation. 2. Sudden temperature changes in the mushroom house. In southern China, most straw mushroom cultivation uses foam mushroom houses, which play an important role in maintaining constant temperature and humidity. However, if doors and windows are not closed in time when a typhoon strikes, or heating is not applied in time when freezing damage occurs, or ventilation and cooling are not carried out early enough during sustained high temperatures, or too much well water is sprayed on the floor,
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Key Technical Points for High-Efficiency Cultivation of Straw Mushrooms in Winter
Straw mushrooms (Volvariella volvacea) are a high-temperature, high-humidity type of fungus, suited to growing in an environment of constant temperature and stable humidity. The suitable growing temperature for straw mushrooms is 23-25°C, and the relative air humidity is 85%-95%. Therefore, to move the high-temperature straw mushroom to cultivation in the lower temperatures of winter, it must be grown in greenhouses with good insulation capacity, which increases cost inputs such as heating. Moreover, straw mushrooms produced in winter sell for 2 times the price of those from conventional summer cultivation, so appropriate adjustments should be made in aspects such as the culture material formula and cultivation management, in order to
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Detailed Explanation of Key Techniques for Off-Season Soil-Covered Bag Cultivation of Shiitake Mushrooms
Soil-covered bag cultivation of shiitake mushrooms is a new model of shiitake cultivation. Shiitake mushrooms cultivated with this model have the advantages of good mushroom shape, high yield, easy fruiting, and savings in time and labor. It is also a relatively advanced method in current shiitake cultivation, especially off-season soil-covered bag cultivation of shiitake, which produces high-quality summer and autumn shiitake mushrooms with high market prices and good economic returns. This technique has been tested and promoted in the northern Guangdong region of our province, with good results. The off-season soil-covered bag cultivation technique for shiitake mushrooms is introduced as follows: 1. Seasonal arrangement. Select varieties with high-temperature tolerance, large round and regular mushrooms, thick mushroom flesh, stout mushroom stipes, and high yield
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Off-season cultivation of edible fungi is highly profitable, with broad market prospects
So-called off-season cultivation refers to cultivation carried out in seasons when normal growth is not possible. In edible fungi production, this is essentially a matter of timing, that is, cultivation carried out in natural seasons when normal production is not possible through improved facilities and equipment, artificial regulation of conditions and other auxiliary means, and it can also achieve production results similar to those of normal-season production; for example, the relatively typical summer cultivation of enoki mushroom (Flammulina velutipes) and winter cultivation of straw mushroom, and so on. For example, the low-temperature variety enoki mushroom should fruit from November to February, but with facility-based automatic controlled cultivation
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What are the key techniques for off-season mushroom cultivation?
Mushrooms are thick and tender, low in fat and high in protein, and are a good health food, becoming increasingly popular. Off-season mushroom cultivation fills the market gap, commands a relatively higher price, and can achieve relatively high economic returns. 1. Selection of cultivars: currently the main cultivars are “Xindeng 96”, “Xiagu 93” and “Taiwan High Temperature”, etc., with a fruiting temperature of 24°C-35°C. 2.
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How to intercrop mushrooms and ginger year-round in a citrus orchard
Trees such as mandarin oranges and pomelos are tall and large, and the orchard is generally fairly open yet shaded. To increase orchard income, the author conducted a year-round intercropping trial of mushrooms and ginger in a pomelo orchard about 30 years old with a spacing of 5 m × 5 m. Starting in the autumn of 1989 (September), white mushrooms were planted between the rows, with a planting area of about 44 sq m. By calculation, the investment was about 400 yuan, and the net income from the autumn mushrooms and spring mushrooms reached more than 500 yuan. After the spring mushrooms were harvested in April 1990, the mushroom substrate was turned and buried into the soil, in preparation for planting ginger.
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High returns from intercropping mushroom cultivation in citrus orchards
The author succeeded in growing mushrooms between the rows of a densely-canopied citrus orchard, achieving a double harvest of both citrus and mushrooms. Large-scale promotion has shown that generally each mu of orchard produces more than 3000 kg of citrus per year, worth 4000 yuan; and 800 kg of fresh mushrooms, worth 3200 yuan. After deducting production costs of 1500 yuan, the total net income is more than 5700 yuan, which is more than 2000 yuan higher than growing citrus alone. Intercropping mushrooms in the orchard also helps to increase humidity, retain warmth and improve the soil. 1 Raw material preparation Each mu requires 1500 kg of dry wheat straw (rice straw or sawdust may also be used), 20 kg of lime and 15 kg of urea
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