During the cultivation period of Pleurotus ostreatus, there are four kinds of ghost umbrellas, including long-handled ghost umbrellas, ink ghost-shaped umbrellas, manure-crested umbrellas, and hairy-headed ghost umbrellas. Coprinus is an important limiting factor for the cultivation of oyster mushrooms in early autumn and late spring. Therefore, mastering effective and effective methods of prevention and control is the key to improving the success of Pleurotus ostreatus cultivation.
1. Use high-quality culture materials, fermentation should be fully adapted to local conditions, use fresh, dry, no mildew, no oil and debris, physical properties, and suitable for cultivation of Pleurotus ostreatus culture materials, culture materials exposed to 2 days to 3 days day. After the material mixture is piled up, it should be kept for more than 3 days after the material temperature rises to 60°C, and it should be turned every day. During the turning, the culture material on the surface of the material pile and the bottom low-temperature layer should be turned to the center of the material pile and the internal The culture materials were turned up and down and around the heap to facilitate uniform fermentation. Insufficient fermentation or excessive fermentation should be avoided.
2. The amount of bran or corn flour used for scientific ingredients shall be less than 15% and the amount of urea shall be less than 1%. According to the production practice, the use of nitrophosphate fertilizer, binary compound fertilizer, and phosphorus pentoxide content of 10% to 20% instead of urea can effectively prevent the occurrence of comatus, but it is necessary to control the dosage within 2%.
The moisture content of culture materials is the key to the success or failure of cultivated oyster mushrooms. When using corn cob fermentation material to cultivate Pleurotus ostreatus, the ratio of feed to water should be controlled at about 1:1.8, and the control of cottonseed husk fermentation should be controlled at about 1:1.5. Increasing the pH of the culture material is an effective measure to suppress the comatus, and the amount of lime added is generally 3% to 5%.
3. Select good strains to the regular manufacturers to buy high-quality, positive brands of bacteria, no more than three generations of the female parent pass, cultivar from the original species transfer, do not transfer from the cultivar again as a cultivar. The strains should be selected for age and adaptability; they should have strong anti-miscellaneous power, high yield, and be suitable for the local cultivated varieties at that time. If you cultivate in early autumn and late spring, you should use medium and high temperature varieties; in late autumn and early spring, low and medium temperature varieties should be used. After inoculation, high-quality strains germinate quickly and grow fast; they can be covered with the material surface quickly to prevent the occurrence of comatus. Raising the inoculation volume is also an effective method.
4. Remedial measures: When the bed is planted, once the hazelnut seed entity occurs, it should be removed (before opening the umbrella) in time to avoid the constipation of the conidiophore spores, and to sprinkle the lime powder at the growth point of the coprinus to prevent the coprinus Silk growth. When the bag is planted, once the parachute occurs, it should be squeezed with fingers in its seed body for a few hours to make it no longer continue to grow after crushing. At the same time, after the mushroom mycelium grows, the hole on the material table will be ventilated to promote the mushroom mycelium. Grow. Pleurotus ostreatus can decompose ghost coprish seed entities so that it does not affect the production of mushrooms. After the treatment, ventilation and cooling should be promptly conducted to promote the growth of Pleurotus ostreatus mycelia and avoid recurrence of ghost umbrellas.
