Shiitake mushroom color change "three passes"

First, control means to control the temperature well at the initial stage. The temperature in the mushroom bed cover film was controlled within 25 ℃ 3-4 days after bag removal, and there was no need to uncover the film for ventilation. After 4 days, it was ventilated once or twice a day, and the ventilation time was 30-40 minutes each time. The temperature difference was increased, so that the growth of aerial hyphae was inhibited and the growth of aerial hyphae was not excessive. Second, spray is to turn off the spray. Generally, 7-8 days after taking off the bag, the mycelium begins to spit out yellow water droplets, which should be dealt with in time, otherwise it will cause mycelium autolysis and be easy to infect miscellaneous bacteria, or cause bacteria to be thickened. Therefore, it is necessary to spray water to wash in time. Spray lightly on the bacterial tube on the first day, dilute the yellow water droplets, rinse with a sprayer with high pressure on the second day, and then cover the film when the bacterial tube is slightly dry. Third, do a good job of ventilation and ventilation. Ventilation is not less than twice a day, each time is 30 minutes. When the temperature is high, the film should be ventilated in the morning and evening, the temperature difference should be increased, and the temperature of the mushroom bed during the color conversion period should be controlled at 15 ℃ ~ 20 ℃. If you find that the color change is too light or do not change color, you can spray water to humidify, and then cover the film, or lie down on the ground, using the ground temperature and humidity to promote its color conversion.