In recent years, with the increase in the price of cotton husks, more and more farmers have adopted corncobs to grow oyster mushrooms. Corncob is rich in protein and polysaccharides. A variety of trace elements and cellulose, is a good raw material for the cultivation of oyster mushrooms. It can draw on the spot, low cost, turning waste into treasure. First, culture formula 1. Corn cob (new corn shaft comminuted into large soybeans) 88%, ash 1%, gypsum powder 1%, lime powder 1%, new wheat bran 8%, phosphate fertilizer 1%. 2. Corncob 97%, gypsum powder 2%, phosphate fertilizer 1%. 3. Corn cob 87%, hardwood chips 10%, gypsum powder 1%, lime powder 1%, phosphate fertilizer 1%. Second, the timing of system cultivation General low-temperature type 2028, 2027 and other Pleurotus ostreatus in July mother system. The original system was established in August. 9 to 10 months cultivation. From November to December, the scale production sticks were listed before and after the Spring Festival. Third, build pile fermented corn cob The corn cob and other raw materials will be mixed according to the proportion of water content to 60%, pH 5.5 ~ 6.5, building a general width of 1.5 ~ 1.8 meters, high 1 ~ 1.5 meters, pile length with the terrain may be, on the ground floor mat Sack-bags or straw curtains, after the construction of the heap with 2 meters long, diameter 5 cm smooth wooden sticks empty oxygen, hole depth of 1 to 1.5 meters, spacing 30 to 40 cm between the hole, the material covered with wet linen pieces or straw curtain. The temperature of the material rose to 60°C and maintained for 18 hours. The material was poured upside down and poured into the middle, and the material was poured inside. The management of the first fermentation was continued. Fermentation qualified material, non-sticky, dark brown, sweet gas. Fourth, bagging and inoculation The greenhouse cultivation of Pleurotus ostreatus should be selected low-temperature varieties, strains should be thick mycelium, white and thick, no mixed plaques, no antagonistic line, open the bag before the mushroom has mushroom odor, there is no primordial mushroom. The age of the bacteria does not exceed 60 days. The cultivation bag should be made of low-pressure polyene plastic cylinders with high tensile strength and good flexibility at low temperatures. The cut length is 20 to 45 cm and the width is 22 cm. One end is tied with a nylon rope. Sprinkle a layer of bacteria-killing ostreatus genus in one end of the bag, and put 1/3 of corncob fermentation material with temperature below 20°C on top of Pleurotus ostreatus, and then reload the sterilized mushroom lumps and then press it slightly. Actually, 8 to 10 cm away from the mouth of the bag, shoots should be sprinkled with oyster mushrooms. Standard: 1 kilogram of bagged dry material, about 15% of the bacteria used, three layers of material, four layers of bacteria, and tightness of the bag. With a diameter of 0.8 cm, 80 cm long and a straight, straight stick, through the access point, Mo through the cultivation bag. Advantageous oxygenation, followed by bagging. If there is a broken bag, seal it with tape in time to prevent infiltration of airborne bacteria, resulting in rod contamination. Fifth, mycelium growth stage management Cultivation rods are placed in greenhouses to be sterilized and sterilized with edible mushroom medicines that meet national standards. Sprinkle a small amount of white-yellow-leaf fungus on the ground, place it in double rows, row and leave 50 centimeters of sidewalks, and go up to 10 levels. The general pallet size depends on the temperature. The purpose is to increase the temperature of the culture material in the bag itself and promote the growth of the mycelia in the material. Shed temperature should be controlled at 18~20°C. The material temperature does not exceed 22°C and the relative humidity in the room is 55%-60%. When the mycelium grows 3 to 4 centimeters, it is poured in time. When the temperature is 26°C, it is necessary to evacuate the fungus rods. The stacking pattern is a well-shaped pattern for ventilation, heat dissipation, and cooling to prevent high-temperature burning of bacteria. Heating and cooling measures: Uncovering the straw curtain and controlling ventilation and ventilation, the humidity does not exceed 60%, otherwise it is prone to bacterial contamination. During the fungus stage, the temperature of the aphid was controlled to be 36-45°C, and when the temperature was low, the management was unreasonable and the bacteria burned at high temperatures. Ventilation room should be kept fresh, timely ventilation, ventilation is usually once a day, each ventilation 30 to 40 minutes. When the temperature is high, cold winds will be introduced sooner or later, adding shade. When the temperature is low, warm air will be blown at noon and the grass will be properly exposed. Training room light should not be strong. Hyphae can grow in both low light and dark conditions, strong light is not conducive to mycelial growth, and 50 to 100 lux scattered light is maintained in the shed. In short, it is necessary to carefully diligently check, generally 5 to 7 days down one time, if the material temperature is higher than 24 °C, you can disperse at any time, find a little piece of green mold that is a high-efficient green mold net treatment, treatment of the stick Ventilate under low temperature and dark light. Six, fruiting period management When the mycelium is covered with a good culture medium, the temperature in the mushroom shed is promptly reduced, so that the temperature in the shed is about 10°C. The temperature difference between day and night is extended so that the temperature difference reaches about 10°C, and the humidity within the shed is adjusted by 80% to 90%. Increase the scattering of light, after 3 to 5 days of the mushroom, the fruit bag forming two fruiting bodies of the original base (white mycelium group), the bag will be opened and straightened or the bag to pull up and promote primordial differentiation. At this time the temperature increased to 18 ~ 20 °C, the relative humidity of the space was controlled at 85% ~ 90%, spray water 2 to 3 times every day, to keep the ground moist, when the fruit body cap length to 2 cm or more, Water can be sprayed directly onto the fruit body, and as the entity grows, the amount of water spray increases. However, water should not be sprayed on the original primordium or young buds of fruiting bodies, otherwise, the original primordial or young buds of fruiting bodies will shrink and die. During the growth of fruiting bodies, proper ventilation should be performed, and ventilation should be performed 1 or 2 times a day. 30 minutes a day or so. If the temperature is higher or the amount of Pleurotus ostreatus cultivation is large, ventilation should be increased. The light in the shed is the same as that of the bacteria. Under suitable conditions, it takes 5 to 7 days for the primordial to grow to fruiting bodies. The cap is fully developed, and the color is changed from shallow to shallow and timely harvested. The old mycelium, dead mushroom and sundries on the material surface must be cleared in time. According to the above management methods, 2 to 4 shiitake mushrooms can be picked. When three shiitake mushrooms are found to have less young mushrooms, thin cover, and slow growth, they must be supplemented with nutrient solution in time to achieve high yield, high quality, and high efficiency. 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High Yield Cultivation of Pleurotus ostreatus in Corncob