Detailed Explanation of Key Points of New Technology for Producing Mushrooms in Oyster Mushroom Bed Cultivation

When oyster mushrooms are cultivated using indoor frame-style beds, mushrooms usually grow only on the front side of the bed, so their production capacity cannot be fully realized. If mushrooms are produced simultaneously on both the front and back sides of a frame-style mushroom bed, then without increasing the formula of the culture material per unit area or the amount of spawn inoculated, the average yield can reach 15.5 kg per sq m, of which 7.6 kg is produced on the back side. Compared with producing mushrooms only on the front side, the yield is nearly doubled, and mushroom formation can be advanced by about 7 days. The key points of the technology for producing oyster mushrooms on both the front and back sides of a mushroom bed are introduced below:

For setting up the mushroom bed frame structure indoors, use bamboo poles or upright wooden posts to build a frame, and fix the mushroom bed baseboards on the frame. The frame is generally 2 m high and has three mushroom bed levels, with a distance of 60-65 cm between levels; there are two widths of mushroom beds: 110 cm wide for two-side management and 55 cm wide for one-side management; the mushroom bed baseboards are made by nailing thin wooden boards, with a spacing of 1.5-2.0 cm between each strip.

For spawning and cultivation, choose "Florida," which has a relatively broad suitable temperature range. The layer-spawning method is used. The specific operation process is as follows: first lay a layer of plastic film on the bottom of the mushroom bed, with a width 2.5 times the width of the mushroom bed baseboard, then spread the first layer of oyster mushroom culture material on the plastic film, about 3 cm thick; next, sprinkle the first layer of spawn on the first layer of oyster mushroom culture material, spreading a total of four layers of culture material and three layers of spawn. After compaction, cover the surface of the culture material with a layer of water-soaked wet newspaper, and finally wrap the entire culture medium tightly with plastic film.

Mushroom emergence management: 60 days after inoculation, the mycelium has basically finished colonizing the material. At this time, use a blade to make intermittent cuts in the plastic film at the gaps on the back side of the mushroom bed board along its length direction, cutting through to the culture medium. The length of each cut segment should not exceed 15 cm, and both the horizontal and vertical spacing between cuts should be greater than 15 cm. Thereafter, each time the mushroom bed is watered, use a sprayer to spray an appropriate amount of water onto the cuts on the back side of the mushroom bed; the rest of the management is the same as conventional practice. After the first flush of mushrooms on the back side of the mushroom bed is harvested, the plastic film at the gaps on the back side of the mushroom bed that has not yet been cut can be cut open again with a blade. During the entire cultivation process, 2-3 flushes of oyster mushrooms can be harvested from the back side of the mushroom bed. The yield is close to the yield on the front side of the mushroom bed.