Skillfully using Corn Straw to cultivate Pleurotus ostreatus

After corn harvest, using corn straw to cultivate Pleurotus ostreatus, the biological efficiency can reach 80-90%, which is equivalent to the yield of cottonseed hull, but the cost is only half of that of cottonseed hull. First, strain production. The original seed base material was prepared according to the formula of 98% corn kernels, 1% gypsum and 1% sucrose. Boil the corn kernels in boiling water for 30 minutes, remove and drain, mix gypsum and sucrose, bottle sterilize, insert into the mother seed, and set aside after the mycelium grows full. The cultivated seed base material was prepared according to the formula of 87% corncob granule, 10% rice bran, 1% gypsum powder, 1% compound fertilizer and 1% lime. Soak the corncob particles in lime water with a ph of 10-12 for 12 hours, remove and filter them without dripping, mix well with other excipients, bottle (bag), sterilize, inoculate and culture in the greenhouse for 20-25 days. Second, making cultivation bags. The cultivation material was prepared according to the formula of crushing corn straw (0.6-0.8 cm long) 75%, corn kernels 20%, lime 3%, sucrose 1%, salt 1%. The corn stalks were dried for 2-3 days, crushed and screened, and the corn kernels were soaked in clean water for 10-12 hours. Mix the formula raw materials, mix well with water, the ratio of material to water is 1.2-1.4, the pile is 1.2-1.5 meters wide, 1-1.2 meters high, unlimited length, film-mulched fermentation for 7 days. Turn the pile 2-3 times during this period, adjust the water content to 60%, and bag it. Third, sterilization and culture. Sterilize with diesel oil barrel steam, first make the temperature in the bag reach 100 degrees Celsius, and maintain it for 16 hours, inoculate when the temperature drops to 30 degrees Celsius. Each bag is connected to the cultivated seed 40 grams (wet weight), shaded cultivation, the indoor temperature is controlled at 25 degrees Celsius. The mycelium can grow full in 35-40 days, and continue to be cultured for 40 days, so that the mycelium can reach physiological maturity. During the post-ripening period, there should be moderate light stimulation to promote mycelium kink. Fourth, mushroom production management. The mushrooms are produced in batches after the material bags are cultivated. Fresh sales, the use of bag-free vertical soil-covering cultivation; processing, the use of trapezoidal wall soil-covering cultivation, the temperature is controlled at 8-20 degrees Celsius. Remove the film and grass curtain at night, give low temperature stimulation, and stimulate with scattered light during the day to promote bud appearance. The primordial soybeans in the bag are untied when they are big, the broad beans are opened when they are big, and the table tennis balls are saved when they are big, keeping the temperature at 12-20 degrees Celsius and the air relative humidity at 85% mi 90%. Open doors and windows for 30 minutes every morning and afternoon to keep the air in the shed fresh. Fifth, harvest and processing. It takes 12 days from budding to harvest of Pleurotus ostreatus. Stop spraying water for 1 day before harvest in order to reduce the humidity in the greenhouse and improve the quality of mushrooms. Stop water for 5 days after harvest, clean the mouth of the bag, routine management, can harvest 2 tide mushrooms.