How to get High yield of Pleurotus ostreatus in Winter measures of High and stable yield of bagged Pleurotus ostreatus

Bag cultivation of Pleurotus ostreatus

First, scientific selection of bacterial bags: (1) specifications of bacterial bags. In the actual production, the corresponding bacterial bags should be selected according to the different cultivation time of Pleurotus ostreatus. 20cm × 40cm or 22cm × 45cm bags were selected in late summer and early autumn, 24cm × 45cm or 25cm × 50cm bags were selected in autumn, 25cm × 50cm or 26cm × 52cm bags were selected in late autumn and early winter, and 25cm × 50cm or 28cm × 55c bags were selected in winter. (2) the quality of bacterial bags. Do not choose plastic bags with high transparency, use high-density low-pressure polyethylene plastic bags with darker colors. (3) preparation of bacterial bags. Take advantage of the leisure time, first fasten one end of the bacterial bag, the length of the tie is about 20cm, and leave the head of 1.5cm when fastening. 3-4 rows of holes can be placed on the bacterial bag in advance, which can save labor and time.

Second, strain selection and preparation: (1) strain selection. Pleurotus ostreatus strains with different characteristics should be selected according to different cultivation time, and the cultivation of low-temperature bacteria at high temperature and high-temperature bacteria at low temperature should be avoided. It is necessary to select several more varieties, feed them in batches, and supply different varieties of Pleurotus ostreatus according to the season. Strains of the same strain should be cultivated in rotation. (2) preparation of bacteria. If there are conditions, it is best to make self-made bacteria to reduce the cost. The original seed can be prepared with wheat kernels, corn kernels and sorghum kernels, and cultivated seeds can be prepared with pure cotton husks as far as possible, and some corncores can also be mixed.

Third, build a mushroom house or mushroom shed: you can transform the old house, change the roof to a thin film roof, brush the walls with lime, spray pesticides such as phoxim and dichlorvos, and then fumigate with sulfur; after the floor of the room is leveled, lay a layer of thick 10~15cm new soil, and then spread a layer of mulch. Mushroom sheds can also be built in the open space or potholes behind the houses in front of the village according to the amount of materials put in. If conditions permit, it is best to build standardized mushroom houses or mushroom sheds, feed in batches and carry out large-scale production.

Fourth, the formula and treatment of culture materials: (1) formula. 1. Cottonseed hull 100%, phosphate and potassium nitrate 0.8% Jing 802 or Nongfeng Hercules 10 ml; 2. Cotton husk 50%, corn core 48%, phosphate and potassium nitrate 1%, potassium dihydrogen phosphate 0.2%, edible fungus nutrients 0.8%. Corncob 100%, compound fertilizer 2%, edible fungus nutrients 0.5%, salt 1.5%. The above formulations are all added with 0.15% carbendazim 0.2% carbendazim and 2% 0.3% lime powder. (2) mixing materials. 1. Manual mixing. For cement flooring, the water consumption will be reduced to 130%; the brick surface will be drained with water in advance to reduce the loss of nutritious water. Manual mixing, the first few times to turn quickly, to ensure that the mixture is uniform. two。 Mechanical mixing. Cultivate large-scale, multi-use mechanical mixing materials, to grasp the moisture of good materials. (3) the time of adding lime powder and spraying pesticides is staggered. Seasoning first, then spraying. Add lime powder and spray fungicide to stagger for 1-2 days, and for raw material cultivation, stagger for 2-4 hours. No matter it is admixture or turning material, after adjusting the pile, the chemical sealing material and insect prevention will be used. (4) Inspection before bagging. When the raw material is cultivated in the low temperature season, the material temperature should not be too low. When the temperature rises to 20 ℃, it should be bagged. Adjust the material, can not have a strange smell, if there is a strange smell, can spray 2% alum water or 5% superphosphate clear solution. The pH value of the material should be at 8: 9. When the material is stable, concentrate on bagging.

Fifth, a clear division of labor when bagging: (1) suppliers. Turn off the seasoning and mix it while seasoning. (2) for strain workers. Disinfect the bacteria, soak the bacteria in a large basin or bucket filled with disinfectant (potassium permanganate), disinfect and peel the bag. In the high temperature season, the bacteria are filled in special plastic buckets, one for each bagger; in the low temperature season, the bacteria after peeling the bag can be directly placed on the material pile. (3) Packers. When bagging, pay attention to the tightness of the bacterial bag to avoid taking off the material when picking mushrooms; if the hole has been fixed in the bag in advance, the strain should be placed in the hole; if the bag is pierced, the strain should be arranged up and down as far as possible, so that the mycelium will grow evenly up and down. (4) bag-carrying and bag-laying workers. According to the temperature when bagging, cross-stack the 3-5 layers of the bag, lay the plastic film at the place of the bag, and sprinkle the lime powder.

Sixth, bacterial bag management: the quality of bacterial bag determines the yield of Pleurotus ostreatus. After bagging, the temperature in the mushroom room or shed should always be kept suitable, and the environment should be dry and alkaline. Mushroom farmers can make a check card, which indicates the appropriate temperature for the mycelium growth period. Check once every 2 to 3 hours, and record the detailed temperature, humidity and ventilation respectively. After 7 days of bagging, the material temperature can be basically stable. There are several more thermometers between the left and right stacks of the bacterial bag, which depends not only on the temperature in the room (shed), but also on the temperature between the bacterial bags. Try to produce bacteria at moderate temperature and keep the temperature at 18 ℃ ~ 22 ℃. When the temperature is high, the stack should be reversed to reduce the number of bacterial bags; when the temperature is low, the film should be covered to increase the temperature.