Attention should be paid to the fermentation of Pleurotus ostreatus culture material

The fermentation quality of culture material directly affects the production of Pleurotus ostreatus. In the fermentation of Pleurotus ostreatus culture material, many mushroom farmers despise the fermentation of culture material, resulting in the decline of yield and quality. When cultivating Pleurotus ostreatus, the culture material fermentation should grasp the following points: the better fermentation time is in the first ten days of August, because at this time, the fermentation culture material can make use of the favorable conditions of autumn temperature from high to low to strive for a longer mushroom production period and achieve better benefits. The favorable conditions of the degree from high to low, strive for a longer fruiting period, and obtain better benefits. The selection of culture materials all culture materials are required to be fresh and must not be moldy. First of all, the culture material should be fully pre-wet to avoid the phenomenon of insufficient water absorption. Secondly, the construction of the pile should be scientific, with a north-south direction, with a width of 1.8 to 1.8 meters and a height of 1.5 to 1.8 meters, with bricks to build ventilation ducts in the lower layer. According to the requirements of pile construction, one layer of material is stacked with one layer of dung, while paying attention to keeping the water content of the culture material at about 65%. Third, pay attention to turn the pile reasonably, such as one-time fermentation, turn the pile four times, count the days from the start of the pile, the first turn on the seventh day, then the sixth day, the fifth day, the fourth day, immediately dismantle the heap into the room at the end of fermentation; if you take secondary fermentation, turn the pile three times, respectively on the fifth, fourth and third day. When turning the pile, the dung grass, the inner and outer layer materials should be uniform, the raw material should be prevented, and the water content of the culture material should be kept at about 65% all the time. Fourth, the cultivation material to prevent rain, rain with film cover, rain stop to remove, to prevent stuffy material. To correctly grasp the maturity of culture materials, it is suitable for the cultivation of Pleurotus ostreatus to be semi-rotten. The semi-rotten culture material has the following four characteristics: first, the color of dung grass changes from golden yellow or yellowish green to brown, but not black, and there is no smell of dung, sour or decay. Second, the grass stem is soft, there is a pull when the hand, full of elasticity, rather than light pull that is broken, not so mature that you can not see the grass stem. If you hold the culture material in your hand, you can be held into a ball, and you can loosen your hand naturally. Third, on the fifth day after the last turn, the temperature of the culture material was still above 50 ℃, but not more than 60 ℃. Fourth, the volume of the culture material pile is 40% smaller than that of the original, the weight is reduced by 30%, the water content is about 60%, and there are no water droplets between the fingers during hand pinching.