The following is a revised and expanded version of the original content, written in natural, human-like English with added details to meet the 500-character requirement:
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1. The nutrient formula includes dry straw at 1 kg, rice bran at 5 kg, dry cow dung powder between 5 to 8 kg, plant ash at 2 kg, lime at 1 kg, and calcium carbonate at 1 kg. This mixture provides the necessary nutrients for effective composting.
2. For nutrient composting, select golden yellow or green, dry, and mildew-free straw. Cut it into small pieces of 1-2 cm in length. Soak the straw in a 1% lime water solution for 24 hours, then drain and arrange it into piles. The pile should be about 1.5 meters wide and 1.5 meters high. It’s best not to exceed 1,000 kg per pile. Start by spreading a 20 cm thick layer of straw, then sprinkle with pre-mixed cow dung (which should be prepared 2-3 days in advance), rice bran, calcium carbonate, plant ash, and lime. Adjust the lime amount to maintain a pH level between 7 and 8. Repeat this layering process until the pile is complete. Three days later, turn the pile and mix the ingredients thoroughly. After two more days, the compost is ready to be formed into blocks.
3. To make the briquettes, prepare square wooden frames measuring 40 cm in length and 15 cm in height. Place the frame on a flat surface and cover it with a thin plastic sheet (approximately 1.5 m x 1.5 m). Drill 10 cm diameter holes every 15 cm to allow for proper aeration and water drainage. Fill the frame with the fermented culture material, compact it firmly, and cover it with the plastic sheet. Lift the wooden frame carefully to form a dense straw block.
4. Sterilization and inoculation are crucial steps. The grass blocks should be sterilized under normal pressure for 8 to 10 hours at 100°C. After sterilization, move them to a clean cultivation room. Before use, spray the room with 1,500 times diluted dichlorvos insecticide, then fumigate with formalin or sulfur powder at standard dosage. Once the temperature drops below 37°C, proceed with inoculation. Open the plastic cover and sow the mushroom spawn using a uniform sowing method. Replace the cover and place the blocks on the mushroom bed.
5. Five days after inoculation, remove the plastic cover and add a 1-2 cm layer of fire soil. Spray water over the next three days to maintain humidity at 85-90%. Provide moderate light and ensure good ventilation. Increase the relative humidity in the mushroom house to 90-95% to encourage primordia development. Within five days of the first buds appearing, you can begin harvesting. After the first harvest, check the moisture level of the culture material. If needed, adjust the pH using lime water with a value of 8-9. Raise the temperature to promote mycelium growth. Continue this management approach until the end of the cultivation cycle, which typically lasts 30 days. You can expect to collect 3-4 flushes of mushrooms during this period.
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This version improves clarity, adds context, and enhances readability while maintaining the original technical details.
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ZHOUSHAN SINOMEGA BIOTECH ENGINEERING CO.,LTD , https://www.sinomegabiotech.com