Planting techniques of Pleurotus ostreatus in greenhouse

Pleurotus ostreatus is a species of Pleurotus ostreatus of the family Pleurotus ostreatus, also known as Pleurotus ostreatus, etc., is a widely cultivated edible fungus, rich in nutrients, containing 20 grams of protein per 100 grams, has a very high cultivation value. Let's take a look at the planting techniques of Pleurotus ostreatus in greenhouse.

Greenhouse construction

Pleurotus ostreatus cultivation greenhouse east-west direction, leeward to the sun, shed width of 5 meters, length of 30 meters, depth of 0.5 meters (from the ground), surrounded by brick barriers or soil heaped into a wall low in the south and high in the north, the south wall is 1 meter high and the north wall is 1.5 meters high (from the ground). Leave a 40 × 40 cm vent every 3 meters (one for each north and south / wall), the roof is secured with bamboo pole, covered with plastic film, and the top is covered with grass curtain. 3-5 days before feeding, fill the shed with enough water and sprinkle a layer of lime after the water seeps, the dosage is 1 kg / m2.

Select improved varieties

Pleurotus ostreatus can be cultivated all the year round, the most suitable temperature for low-temperature varieties is between 13 and 17 ℃, such as frozen bacteria, P2Cl2, etc., and the most suitable temperature range for medium-temperature varieties is 20-24 ℃, such as Pleurotus ostreatus, Pleurotus ostreatus, etc.

Cultivation material allocation

The new cottonseed husk of that year was stuffed for 24 hours and then bagged on the second day, and the old cottonseed husk of the next year was fermented for 4 or 6 days to eliminate the breeding of miscellaneous bacteria. When stacking fermentation, the material stack should be eye-catching and breathable, during which the pile should be turned at least twice, and the longest fermentation time should not exceed 1 week. The ratio of material to water should be strictly controlled in mixing. Too wet mixing is not conducive to fermentation, but also not conducive to bacterial growth. Nitrogen and nutrients should be added in proportion, and bacteria should be added to sterilize and control insects. When bagging, the amount of bacteria is not less than 20%, so as to ensure that the bacteria can be sent quickly and the bag will not be contaminated by miscellaneous bacteria.

Germ management

After the cultivation materials were bagged, the bacteria were sent into the shed, and all the bags were placed on the ground in autumn, only one layer in code. When planted in spring, the bags could be cross-coded in 2 layers or well-shaped in 2 layers, and the bags planted in winter were stacked into a stack every 4 layers, and the two stacks were put together to promote the mycelium growth at both ends of the bag. Roll up the greenhouse film when planting in autumn, and the greenhouse is covered with grass curtains to avoid heating up because of the stuffy shed. Put down the greenhouse film to keep warm when planting in winter, and open several grass curtains during the day to raise the temperature of the greenhouse. When planting in spring, the front of the greenhouse film can be rolled up to ventilate and cool down. Special attention should be paid to the temperature in the bag during the sterilization period. if it exceeds 30 ℃, immediately ventilation and cooling or stacking to dissipate heat. Once there is a high-temperature burning bacteria, the green mold in the bag can be dug out and filled in paste with plant ash. If the green mold has formed spores, 20% limewater can be used to prepare plant ash to fill the contaminated area.

Mushroom production management

After the mycelium of Pleurotus ostreatus is full of bags, it can be palletized on the ridges in the shed. When planting in autumn, the palletizing height is 2-4 layers, and 2-3 sorghum stalks or sticks should be placed between each layer. Open the ventilation hole on the back wall, pull up the grass curtain for ventilation sooner or later, and spray water at noon to cool down. When planting in winter, the bacterial stack can be divided into 8 layers, spray water in hot weather at noon, and roll up the greenhouse film 1: 1.5 meters in front for ventilation, the general ventilation time is between 10: 20 minutes, put down the greenhouse film and straw curtain in time after ventilation, and part of the grass curtain can be pulled up in the morning. When planting in spring, put 4'8 layers of bacteria stack, roll up the front greenhouse film 1 meter high, grass curtain depending on the temperature to cover the ground or as high as the greenhouse film. Spray water once or twice a day to keep the relative humidity in the shed at about 85%. It can also be watered in ridges to keep the bacteria stack moist. When planting in spring and autumn, roll up the greenhouse film, put down the grass curtain to avoid stuffy shed, and pay attention to the temperature of the bacterial stick. After the first tide of mushrooms is harvested, the water should be stopped for 3 days, and then the mushrooms will be sprayed out after the primordium is formed. Generally speaking, 70-80% of the yield of Pleurotus ostreatus can be formed in the first 2. In order to connect the stubble and improve the efficiency, it is appropriate to grow Pleurotus ostreatus in greenhouse.