High-yield cultivation of Pleurotus ostreatus (part two)

V. Management of the sub-entity stage

1. At the end of the germicidal stage and the formation of the clot, the mushroom production management should be carried out according to the air temperature. The temperature dropped gradually in late August, and the mature bacterial clumps were opened with plastic sheeting and placed on the mushroom rack. The bacterial film grown out of the bacterial block is too thick, which is not conducive to the growth of fruiting body, so it is necessary to use a bamboo knife or iron nail to draw a line on the surface of the bacterial block, vertically and horizontally into a lattice about 2 cm wide. Cut through the bacterial membrane, the depth should be moderate, generally 1 cm deep. The bacterial block is easy to break if the line is too deep. Then lay it flat on the shelf, spray water, and adjust the room temperature to about 15 ℃ to promote the formation of fruiting body.

two。 Temperature management Pleurotus ostreatus belongs to low temperature type, and it is suitable for fruiting body growth under the condition of 10 ℃ to 15 ℃. The fruiting body forms slowly when it is higher than 20 ℃, and the cover is small, the stalk is thin, the meat is thin, and it is easy to open umbrella. The fruiting body has strong resistance to low temperature and can grow at about 5 ℃, but it is not exuberant. Under the condition of variable temperature, the fruiting body grows very well, there are many mushrooms, the mushroom body is large, the meat is thick and the quality is good.

The natural temperature difference is large after September, so we should make full use of the natural temperature difference to promote the production of mushrooms. The temperature of the mushroom at night should not be lower than 10 ℃. If the temperature is high at noon, we should pay attention to ventilation so that the temperature of the mushroom room is not higher than 20 ℃. The production practice has proved that if the external temperature in early autumn is not higher than 25 ℃ and the external temperature does not freeze in late autumn, the temperature of the mushroom only needs to be cooled in advance, heat preservation in the later stage, water spraying and ventilation, and the fruiting body can grow normally.

3. Moisture management is one of the important conditions for high yield of Pleurotus ostreatus. Insufficient humidity inhibits the differentiation of fruiting body, shrinks the mushroom body, does not secrete mucus, and stops growing or dying. In order to ensure the growth and development of fruiting body, water should be sprayed properly to increase the moisture of fungus mass and air humidity. Spray water at least twice a day, and the amount of water sprayed should be determined according to indoor humidity and fruiting body growth. The air humidity should be kept between 85% and 95%, the weather is dry and windy, and the frequency of water spraying should be increased appropriately. The more the fruiting body occurs, the more vigorous the mushroom body grows and the greater the metabolic capacity is, so it is necessary to increase the amount of water. After paddling, the temperature is not stable below 20 ℃. Within 10 days after packing, it is necessary to spray less and gently to keep the surface of the medium moist. When the temperature drops below 20 ℃, that is, in the first ten days of September, it is necessary to increase the amount of water and spray water 3 times or 4 times a day. Kink water is critical to determine the time and yield of mushrooms. When spraying water to the fungus block, you should use a sprayer to spray frequently, so that the water can slowly line through the surface and infiltrate into the fungus block, do not spray rush water, heavy water. The head of the sprayer should be higher when spraying water to prevent the water from hitting the mushroom body. Do not spray cold water in winter, the water temperature should be close to room temperature. The room temperature is very low in winter, such as spraying supercooled water will reduce the temperature of mycelium, inhibit the activity of mycelium, reduce the ability of mycelial decomposition, slow fruiting body growth, or even no mushroom, but also easy to cause black spot disease. Tap water must be stored for 2 days so that chlorine can be volatilized before use, preferably with well water. There should be no stagnant water above and below the fungus. Heating equipment should be used in the mushroom room in winter. Water should not be applied before heating. Water should be sprayed after rising the room temperature for 2 days.

4. During the period of ventilation management, the respiratory energy of mycelium is enhanced, and the oxygen demand is obviously increased, so it is necessary to keep the indoor air fresh. Pay attention to the change of temperature and humidity while ventilating. If the temperature is high and the room is hot and humid, ventilation should be strengthened. If the natural temperature is high during the mushroom emergence period, poor indoor ventilation will lead to the increase of non-mushroom or deformed mushroom. In addition, the higher temperature season must open vents and vents day and night to make the air convection and ensure that there is enough oxygen in the room.

5. The management of light needs astigmatism during the growth of the fruiting body, the fungus should not be placed too dense, and the room should not be too dark. There is not enough scattered light mushroom body color light handle slender, in order to achieve astigmatism like shade awning.

The length of mushroom production period depends on the level of management, good management, suitable condition adjustment, short mushroom tide cycle, fast mushroom production, high yield, and can end the cultivation cycle ahead of time. If the management is not good, the mushroom will grow late, the mushroom tide will come slowly, and the yield will be low. In the severe winter season, such as the mushroom production cycle is not over, the mushroom tide is still exuberant, if the weather is too cold, protective measures can be implemented to appropriately increase the indoor temperature to facilitate the continued production of mushrooms. There is no formal mushroom room for thermal insulation production in rural areas, and the mushroom can be centrally stacked and covered with plastic sheeting to avoid drying up in the air and maintain the vitality of the hyphae. The mushroom can continue to grow when the temperature rises to more than 5 ℃ in the spring of the second year.