Detailed Explanation of the Double-Sided Fruiting Method for Oyster Mushroom Beds

Using the double-sided fruiting method for oyster mushroom beds makes effective use of the mushroom house space and increases the yield per unit area of the beds. The key technical points are as follows:

1. Bed equipment. Build a frame inside the mushroom house with moso bamboo or standing timber, generally 2 m high, with 3 tiers of beds, each tier spaced 60-65 cm apart, and the length depending on the actual conditions of the mushroom house. There are two widths: 55 cm for single-side management and 110 cm for double-side management. The bottom board of each bed tier is made by nailing thin wooden slats, with each slat spaced (gap) 1.5-2 cm apart.

2. Spreading substrate and inoculation. First lay a layer of plastic film on the bed bottom board, with a width 2.5 times the width of the bed bottom board. Then spread the first layer of substrate on the plastic film (about 3 cm thick). Next, inoculate the first layer of spawn. Continue spreading substrate and inoculating in this way, for a total of 4 layers of substrate and 3 layers of spawn, then press firm and cover the surface of the substrate with a layer of water-soaked newspaper. Finally, wrap the entire culture medium tightly with the plastic film that extends beyond the bottom board.

3. Cutting slits for fruiting. About 60 days after inoculation, the mycelium has basically finished "colonizing" the substrate. At this point, use a sterilized blade to make intermittent cuts in the plastic film along the length direction at the gaps on the reverse side of the bed bottom board, cutting through to the culture medium, with each cut no longer than 15 cm, and both the transverse and longitudinal spacing between two cuts greater than 15 cm. After the first flush of mushrooms on the reverse side of the bed is harvested, use the blade again to cut open the plastic film at the gaps that have not yet been slit, allowing mushrooms to fruit there. In normal bed management, each time watering is done, a suitable amount of water should also be sprayed on the slit areas on the reverse side. Oyster mushrooms growing on the reverse side of the bed can be harvested for 2-3 flushes, with a yield close to the normal yield of the bed.