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1. The nutrient formula consists of 1 kg of dry straw, 5 kg of rice bran, 5–8 kg of dry cow dung powder, 2 kg of plant ash, 1 kg of lime, and 1 kg of calcium carbonate. This mixture provides a balanced base for composting.
2. For nutrient composting, select golden yellow or green, dry, and mildew-free straw. Cut it into small pieces of 1–2 cm and soak them in a 1% lime water solution for 24 hours. After soaking, drain the straw and form piles. Each pile should be about 1.5 meters wide and 1.5 meters high, with a maximum size of around 1,000 kilograms depending on available space. Start by spreading a 20 cm layer of straw, then add cow dung (pre-mixed 2–3 days in advance), rice bran, calcium carbonate, plant ash, and lime. Adjust the lime amount to maintain a pH between 7 and 8. Repeat this layering process until the pile is complete. Three days later, turn the pile and mix the ingredients thoroughly. Within two days, the compost will be ready for use.
3. To make the briquettes, prepare several 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 small holes (10 cm in diameter) every 15 cm across the sheet to allow for proper water drainage and air circulation. Fill the frame with the fermented culture material, press it down firmly, cover it with the plastic sheet, lift the frame, and you will have a compacted straw block ready for use.
4. Sterilization and Inoculation: The grass blocks should be sterilized at normal pressure for 8–10 hours at 100°C. After sterilization, move them to a clean cultivation room that has been sprayed with 1,500 times diluted dichlorvos insecticide and fumigated with formalin or sulfur powder. Once the temperature drops below 37°C, proceed with inoculation. Open the film, sow the mushroom spawn using the sowing method, cover the blocks again with the film, and place them on the mushroom bed.
5. Five days after inoculation, remove the film and cover the blocks with a 1–2 cm layer of fire soil. For the next three days, mist the blocks regularly to maintain humidity at 85–90%. Provide moderate light and good ventilation. Increase the humidity in the mushroom house to 90–95% to encourage the formation of primordia. Typically, the first flush of mushrooms can be harvested five days after the appearance of buds. After harvesting, check the moisture level of the culture material and adjust the pH using lime water if needed. Raise the temperature slightly to support mycelium growth. Continue this management routine until the end of the cultivation cycle. The entire process usually takes about 30 days, yielding 3–4 harvests.
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ZHOUSHAN SINOMEGA BIOTECH ENGINEERING CO.,LTD , https://www.sinomegabiotech.com