High-yield planting techniques of Pleurotus ostreatus

Pleurotus ostreatus is a kind of rare edible fungus with high edible and medicinal value. the mushroom is white in color, delicate in meat, delicious in taste, rich in protein, fat, crude fiber and a variety of healthy minerals, especially fungal polysaccharides, which can enhance human immunity and regulate human physiological balance. let's take a look at the high-yield planting techniques of Pleurotus ostreatus.

Cultivation time

The fruiting body of Pleurotus nebrodensis developed well at 8: 15 ℃. Under artificial cultivation conditions, the fruiting body could grow at 8: 25 ℃, and grew faster at 15: 20 ℃. The optimum inoculation was made in bags about 60 days before the local temperature dropped to 15: 20 ℃. For seed production in winter, if the temperature in the culture room is too low, the time should be advanced appropriately. In the same season, the temperature is different in different regions, and the climate is also different every year in the same region, so it is necessary to adjust measures to local conditions according to time. It is the most suitable that the daily maximum temperature of bag-making inoculation in summer is below 30 ℃ (the mycelial growth is 24-26 ℃). Generally, bag-making vaccination can be started in late August. When the temperature is higher than 30 ℃, the inoculation is postponed in the suitable temperature period, but it is disadvantageous to the mycelium growth when the low temperature comes, so we should pay close attention to the inoculation in the suitable temperature period.

Raw material formula

The cultivation of Pleurotus ostreatus should be reasonably prepared to prevent the imbalance of carbon and nitrogen ratio. According to the practical experience, the appropriate ratio of carbon to nitrogen in the culture period is 25: 40 and 70: 200 in the mushroom emergence stage. Too high nitrogen concentration will inhibit the primordium differentiation of Pleurotus ostreatus. The commonly used formula of Pleurotus ostreatus is cottonseed husk 87%, wheat bran 8%, corn meal 2%, sugar, gypsum, lime 1% each, plus 0.3-0.5% starter (0.5% in winter and 0.3% in spring, summer and autumn).

Fermentation turn-over

The sugars and urea that are soluble in water are dissolved in water, and the rest of the raw materials are mixed with water repeatedly to form a trapezoidal pile with a width of 1 to 1.5 meters, a height of 1.2 to 1.5 meters and unlimited length. A vent is punched every 30 to 50 centimeters on the stack, with an aperture of 7 centimeters and 10 centimeters, with 2 rows of vents on each side. The top of the stack is covered with film to moisturize, and the lower part of the stack is left with 30cm and 50cm uncovered film. Turn the pile when the temperature rises to 65-70 ℃, ferment for 7-10 days, turn the pile 3 times.

Raw material bagging

Pleurotus ostreatus is planted in bags. The cultivation bags are made of high-density polyethylene or polypropylene film with a thickness of 0.04 cm and 0.06 cm, with a width of 15 cm and a length of 35 cm. Adjust the water of the fermented culture material before bagging, so that the water content is kept at 60% and the pH value is kept at 7.5-8.5. When bagging, tie up one end of the bag first, and put the culture material evenly into the bag, each bag containing 0.95-1.05 kg.

Sterilization and inoculation

Packed material bags, autoclaved for 2-3 hours, atmospheric sterilized for 10-18 hours. After sterilization, take out the material bag and put it in the inoculation room or in a clean place to cool down. When the bag temperature drops to 30 ℃, open the bag mouth in the inoculation room or inoculation box, and connect the bacteria from both ends or one end under aseptic operation, and the inoculation amount is 10% of the culture material.