Using cow dung and straw to cultivate organic Pleurotus eryngii not only requires less input and has a considerable benefit, but also purifies the environment and turns waste into treasure. It can also alleviate the environmental pollution of cow dung and other wastes that currently exist in rural areas. The cultivation techniques are as follows:
1. Ingredients
100 square meters of stacking 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: take wheat straw according to the formula and soak it in batches. When the wheat straw absorbs water evenly, stack the side of the yard in layers.
2. Wheat straw treatment: On the third day of wheat straw pre-wetting, spread a layer of lime powder on the wheat straw, spray once with water, then sprinkle urea, and then spread another layer of wheat straw, and so on. After pre-stacking, 25 kg of urea and 7.5 kg of lime powder are used, and the pile is about 23 cubic meters.
3. Preparation before building the pile: crush the manure and cake fertilizer separately and mix well before building the pile, then pre-wet with 1% lime water until the hand can form a lump and the ground can be scattered, after crushing the chemical fertilizer, gypsum and lime Mix well, sprinkle on cow dung and mix well, cover with plastic cloth and wait for use.
4. Stacking: Spread the pre-stacked wheat straw on the stockyard, 8-10 meters long, 1.8-2.2 meters wide, 30 cm thick, and then spread a layer of cow dung mixture on the surface of the material, and so on , Until the pile is finished, finally cover the wheat straw with manure mixture on the surface, and then cover it with a layer of grass. Spray water on the grass 1 or 2 times a day, turn the pile on the 7th day after the pile is built, and make up the water properly. After another 5 days, the second turning was carried out, and 15 kg of lime powder was used to make lime water for replenishment. The third turnover was carried out 5 days after the second turnover, and the pH was measured at the same time. The pH value was adjusted to 7.5~8 with lime water, and the water content was maintained at 65%.
5. Fermentation of the culture material: put the culture material on the cultivation bed frame, cover it tightly with a film, and heat it. When the temperature of the material rises to 58℃~60℃, maintain it for 8~12 hours, and then drop it to 48℃~52 ℃, maintained for 13 days, and can be sown when the material temperature drops to 28℃. The fermented culture material is brown, soft and elastic, with a water content of about 64%, a pH value of 7.5~8, fecal odor, sour taste, ammonia smell.
Second, sowing
Spread 1/2 of the amount of bacteria on the surface of the material, and then use the middle finger to insert the material into the material and vibrate slightly to make the bacteria fall into the material at 3~5 cm evenly. Then spread the remaining bacteria on the material evenly. Face. Use 1~1.5 bottles per square meter.
3. Cultivation of soil
1. Management after sowing: After sowing, the temperature in the shed should be maintained at 22℃~25℃, the highest temperature should not exceed 28℃, and the humidity should be about 75%. After 7 days of sowing, the mycelium will grow normally, and the mycelia will grow to the bottom after about 20 days.
2. Formula of soil covering material: 100 square meters, 3100~3250 kg of fertilizer soil, 17.5 kg of phosphate fertilizer, 20 kg of calcium carbonate, 100~150 kg of fermented wheat bran, 2/3 of coarse soil and 1/3 of fine soil are required before the soil is covered 3 days, add 10 kg of 5% formaldehyde per cubic meter, stir while spraying, then add a film, pile up for 24 hours, then adjust the humidity with lime water, spray dichlorvos.
Four, mushrooms
Manage the temperature in the mushroom shed from 14℃ to 16℃ and the air humidity from 85% to 90%. Water spraying should be carried out frequently and sparingly. When the diameter of the mushroom cover is 2 to 4 centimeters, the inner volume of the edge is intact, and the bacterial membrane is not broken, it must be refilled once for each batch.
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