Five Points for High and Stable Yield of Pleurotus ostreatus

Scientific selection of bacteria bags

1. Bacterial bag specifications: In actual production, according to different cultivation time, select the corresponding specifications of the bacterial bag. In the late summer and early autumn, choose a 20 × 40 cm or 22 × 45 cm fungus bag, in autumn, choose a 24 × 45 cm or 25 × 50 cm fungus bag, and in the late autumn and early winter, choose a 25 × 50 cm or 26 × 52 cm fungus bag. In winter, choose 25 × 50 cm or 28 × 55 cm fungus bags.

2. Quality of bacteria bags: Do not use plastic bags with high transparency, but high-density low-pressure polyethylene plastic bags with a slightly darker color.

3. Bacteria bag preparation: When the farm is idle, first tie one end of the bag, the tether is about 20 cm long, and the head is 1.5 cm when it is tied. 3 to 4 rows of holes can be punched in the bacteria bag in advance, which can save labor and time.

Selection and preparation of strains

1. Selection of strains: according to different cultivation time, choose strains with different characteristics to prevent cultivation of low-temperature strains in high-temperature seasons and cultivation of high-temperature strains in low-temperature seasons. It is necessary to select several varieties, feed them in batches, and supply different types of oyster mushrooms according to the season. Rotation cultivation of strains of the same strain is required.

2. Preparation of strains: the best homemade strains with conditions to reduce costs. The original seeds can be prepared with wheat kernels, corn kernels, and sorghum kernels, and the cultivated seeds are prepared with pure cotton seed husks as much as possible, and some corn cobs can also be appropriately mixed.

Build a mushroom house or mushroom shed

The old house can be slightly modified, the roof is transformed into a film roof, the wall is painted with lime, and insecticides such as phoxim and dichlorvos are sprayed, and then smoked with sulfur; after the floor in the room is leveled, lay a layer New soil 10 to 15 cm thick, lay another layer of mulch when it becomes bacterium. It is also possible to build a mushroom shed in the open space behind the front house of the village or by the pit according to the amount of feed. If conditions permit, it is best to build a standardized mushroom house or mushroom shed, batch feeding, and large-scale production.

Culture material formula and processing

1. Formula â‘  100% cotton seed shell, 0.8% nitrate phosphorus and potassium fertilizer, 802 or Nongfeng Hercules 10 ml.

â‘¡Cotton husk 50%, corn cob 48%, nitrate phosphorous potassium fertilizer 1%, potassium dihydrogen phosphate 0.2%, edible fungus nutrients 0.8%.

â‘¢ Corncob 100%, compound fertilizer 2%, edible fungus nutrient 0.5%, salt 1.5%.

The above formula is added 0.15% ~ 0.2% carbendazim and 2% ~ 3% lime powder.

2. Mixing â‘ Artificial mixing: the water consumption of the cement floor is reduced to 130%; the brick surface is watered in advance to reduce the loss of nutrient water. When mixing materials manually, the mixing should be quick in the first few times to ensure even mixing.

â‘¡Mechanical mixing: Mechanical mixing is mostly used for large-scale cultivation, and it is necessary to grasp the moisture of the material.

3. The time of adding lime powder and spraying insecticide should be staggered. The adding of lime powder and spraying fungicide should be staggered for 1 to 2 days, and for raw material cultivation, it should be staggered for 2 to 4 hours. Regardless of whether it is admixture or turning, after adjusting the pile, it should be sealed with insecticide to prevent insects.

4. Check the raw material cultivation in the low-temperature season before bagging, the material temperature should not be too low, when the temperature rises to 20 ℃, then bag. The prepared material should not have odor. If there is odor, spray 2% alum water or 5% superphosphate clear liquid. The pH value of the material should be kept at 8-9. After the material is stable, bag it together.

Bacteria management

The quality of the fungus bag determines the output of Pleurotus ostreatus. After bagging, the mushroom room or mushroom shed must always maintain a suitable temperature. The mushroom farmer should make a check card clearly stating the appropriate temperature required for the growth of the mycelium. Check it every 2 to 3 hours, and record the detailed temperature, humidity and ventilation. 7 days after bagging, the material temperature can be basically stable. A few more thermometers should be placed in the stacks of bacteria bags up and down, not only depending on the temperature in the room or shed, but also on the temperature between the stacks of bacteria bags. Try to get germs at moderate temperature and keep the temperature at 18 ℃ ～ 22 ℃. When the temperature is high, the number of layers of the bacteria bag should be inverted, and when the temperature is low, the film should be covered to increase the temperature.

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