The use of cow dung and straw to cultivate organic Pleurotus eryngii is not only less invested, but also has considerable benefits. It also purifies the environment and turns waste into treasure, and has been used to control the environmental pollution of wastes such as cow dung, which is prevalent in rural areas. Its organic cultivation techniques are as follows:
First, the ingredients
The 100-square-meter pile requires 1500 kg of wheat straw, 1250 kg of cow dung, 40 kg of phosphate fertilizer, 40 kg of gypsum, and 50 kg of lime with a pH of 7.5-8.
1. Wheat straw pre-wet According to the formula, the wheat straw is taken, and it is soaked in water in batches. When the wheat straw is uniformly absorbed, the layer is stacked on the side of the feeding yard.
2, wheat straw treatment of wheat straw pre-wet the third day, a layer of lime powder on the wheat straw, spray 1 time water, then spray urea, and then lay a layer of wheat straw, and so on. After pre-stacking, use 25 kg of urea, 7.5 kg of lime powder, and a heap of about 23 cubic meters.
3, before the construction of the pile Before the construction of the pile, the cow dung and cake fertilizer are crushed and sieved and mixed evenly, and then pre-wetted with 1% lime water until the hand can be formed into a group, the ground can be dispersed, and the fertilizer, gypsum and lime are mixed and crushed. Evenly, sprinkle it on the cow dung and mix well. Cover it with plastic cloth.
4. Construction pile The pre-stacked wheat straw is laid on the stockyard, 30 cm thick, 1.8-2.2 m wide, 8-10 m long, and then a layer of cow dung mixture is placed on the surface of the material, and so on. Until the end of the pile, the straw is tightly covered with manure mixture on the surface, and then covered with a layer of grasshopper. Spray 1-2 times of water on the grass every day, turn it on the 7th day after the pile is built, properly hydrate the water, and there is no water outflow at the edge. In the next 5 days, the second turn was carried out, and 15 kg of lime powder was used to make lime water for hydration. The third turn was carried out 5 days after the second turn, and the pH was measured. The pH was adjusted to 7.5-8 with lime water, the water content was kept at 65%, and the shed was stopped for two days.
5, the culture material is placed on the cultivation bed frame with a thin film cover, warm, when the material temperature rises to 58 ° C -60 ° C for 8-12 hours, then reduced to 48 ° C -52 ° C for 13 days, waiting Seeding can be carried out when the temperature drops to 28 °C. The fermented culture material is brown in color, soft and elastic, with water content of about 64%, pH value of 7.5-8, hand odor, sourness and ammonia smell.
Second, sowing
Containers, inoculation tools, and operators' hands must be sterilized. First spread the 1/2 of the strain on the surface evenly, then use the middle finger insert to slightly vibrate, so that the strain falls evenly into the material 3-5 cm, and then spread the remaining bacteria evenly. On the surface. Use 1-1.5 bottles per square meter.
Third, the cultivation of soil
1. After sowing, the temperature in the shed is kept at 22 °C -25 °C, the highest is not more than 28 °C, the humidity is about 75%, and after 7 days of sowing, the hyphae grows normally, and the mycelium grows over the bottom after about 20 days.
2, covering soil formula: 100 square meters need fertilizer 3100-3250 kg, phosphate fertilizer 17.5 kg, calcium carbonate 20 kg, fermented wheat stubble 100-150 kg, requiring coarse soil accounted for 2/3, fine soil 1/3. In the first 3 days, add 10 kg of 5% formaldehyde per cubic meter, stir while spraying, then add film, pile up for 24 hours, then adjust the wet with lime water and spray dichlorvos.
Fourth, the mushroom
Manage the temperature in the mushroom shed 14 ° C -16 ° C, air humidity 85% -90%. Spray water to do the spray, less spray, when the mushroom cover diameter is up to 2-4 cm, the edge is rolled, the membrane is not broken When harvesting, each batch must be replenished once. Nutrient solution formula 1 potato boiled liquid plus edible mushroom nutrients. 2 mushroom handle pre-cooking liquid plus edible mushroom nutrients.
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