The base of the stipe of the fruiting mushroom body is often easily brown, resulting in deterioration of the quality of the mushroom and affecting the quality of the product. For this purpose, the cultivation technology of golden needle mushroom was studied. The golden needle mushroom produced was white and tender, the mushroom shape was neat, the diameter of the mushroom cover was 0.5-1.5cm, hemispherical, unopened or half-open, the stem length of the mushroom was 12-14cm, and the handle was thick. 0.2-0.4cm, with a clean white base and a dark tan-colored part, has reached the commodity standard of Flammulina velutipes, and now its cultivation techniques are described below. 1. Formulation of culture materials The main formula: 1 cottonseed husk 89%, rice bran or bran 10%, gypsum 1%; 2 sawdust 80%, rice bran or bran 20%; 3 corncob 73%, drum skin 25%, Gypsum 1%, sucrose 1%. The above-mentioned culture material is fully mixed with water, and then the ph value is adjusted to about 6, and it is preferable that the moisture content of the hand-kneaded material is dripping out of water droplets but not forming a water flow. After the cultivation materials are mixed, choose a plastic bag of 17cm x 28cm (length x width) and 0.6mm thickness, about 300g of material, and two ends. Sawdust is best done with broadleaf wood chips. Pine cedar chips are not suitable for cultivation. Wood chips mainly play a role of moisturizing and aeration, and they have more coarse wood chips, and the medium is easy to dry. Wood chips are too fine and their permeability is poor. Rice bran and bran contain all the nutrients needed for growth and development of mushroom, but more rice bran or bran produce slower growth, and it is easy to produce water mushroom, which has low yield and poor quality. When the culture medium is bagged, an equal amount of the culture medium is to be loaded, so that the fungus is uniform, and the mushroom is simultaneously convenient for inoculation under aseptic conditions, and the strains are attached to both ends of the bag. This should be carried out in a sterile or near-sterile room. Strains should be cultured in suitable strains with vigorous, robust and non-hybrid bacteria. 2. Inoculation period management After inoculation, the cultivation bag is put into a clean culture room for bacteria culture, and the indoor temperature is maintained at 22-25°C. Normally, the mycelium can extend into the medium 20-25mm after 10-15 days after inoculation. If the fungus develops smoothly, hyphae can cover the entire material surface 20-25 days after inoculation. At this stage, it is required to pick out the bacteria, and the bacteria bags that are not full of bacteria are lined together to continue germination. 3, after the end of the mushroom and the bacterium, the bacteria should be immediately carried out, and the next bacteria should be excavated so that the fruit body can occur from the surface of the culture medium. If the surface of the culture medium is very dry, scraping can be used. The old bacterial strains were scraped off together with 5-10 mm medium. Mycelium can be formed by the mechanical stimulation of the fungus and low temperature stimulation to form the primordium. To maintain the air humidity of 90%-95% and strengthen the ventilation, it can inhibit the formation of aerial mycelium formed on the surface of the mushroom bag, which is conducive to the emergence of the bud. mushroom. This period should maintain the relative humidity of about 95% is appropriate, the temperature is controlled at 10-15 °C as well, covered with newspapers or cover film moisturizing, to induce mushrooms, one week later, gradually grow sharp buds, buds head white It is normal. 4. Equal breeding and suppression of both males and females is the use of low-temperature suppression technology, so that the original weak resistance will not die, increase resistance, can be evenly developed. The average breeding requires a temperature of about 8°C and an air humidity of 85%-90%, generally 2-3 days. Inhibition is to control the growth of the first elongating mushroom, to promote the elongation of the long-lasting mushroom, so that all the stipe length neatly consistent, inhibit the beginning of the stipe length 1mm, the diameter of the cap is suitable for 1.5mm, inhibition temperature Keep at 3-5°C and humidity 85%-90%. The co2 concentration is below 0.1% and the inhibition period is about 7 days. Can also be used to reduce temperature, humidity, ventilation measures, delay the formation of fruiting bodies, to synchronize them in order to facilitate the neat mushroom, a group of mushrooms. 5, the management of the fertility stage When the stipe length 0.5-1.0cm, increased light, increase production and improve quality. As the mushroom body has a strong phototropic property, from the time when the mushroom body is 2-3cm in length, the tube is set to be harvested. With a certain amount of light, the stipe can be induced to elongate light. Therefore, every 3-5m above the bed frame. Hang a 15w bulb to produce vertical light to promote stipe elongation. This stage of the temperature of 8-15 °C, air relative humidity of 85% -90%, mushroom house in the co2 content of 0.10% -0.15% is appropriate, so that can inhibit the open umbrella umbrella, promote the purpose of stipe elongation. About 15 days, the diameter of the cap can reach 1-2cm, and the length of the stalk can reach 8-15cm, so it can be harvested. 6, suitable for harvest when the stipe length 13-14cm, neat, about 1cm diameter cap, the edge of the volume, no distortion, stipe cap is not absorbent, stipe roots clear, round and thick, all Pure white, mushroom body, water content is not much time for the harvest period. The moisture content of the cap should be checked several days before harvesting. If there is a lot of moisture, it should be ventilated to promote evaporation of water two days before harvest. After harvesting, some of the culture medium and poorly-growing mushrooms connected to the base of the stipe and the culture medium were removed, and small packaging was performed according to market requirements, or the bag was sealed with a polyethylene film bag and cryopreserved. After the second tidal mushroom, in order to increase the yield and quality, the mushroom column can be taken out of the head and bagged, or the mouth of the original mushroom bag can be closed, and the other mushroom can be opened.
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