How to increase mushroom yield? A detailed explanation of several practical methods
1. Scratching method: When the mycelium has covered the surface of the substrate, use a clean bamboo broom to gently sweep back and forth over the surface of the substrate, removing or damaging the overgrown mycelium and old mycelium on the surface layer. After new mycelium appears, spray water and cover with plastic film to retain moisture and warmth. In about 7 days, primordia will form and mushrooms will appear, usually increasing yield by about 10%.
2. Shocking method: After the substrate is fully covered with mycelium, use flexible wooden slats to press, pat, and vibrate the surface of the substrate. During operation, apply force evenly, do not leave deep marks, and do not damage the surface of the substrate. This can promote accelerated mycelial growth and rapid differentiation of fruiting bodies. This method is suitable for shiitake mushrooms, oyster mushrooms, Phoenix oyster mushrooms, and wood ear mushrooms, usually increasing biological efficiency by about 15%.
3. Contact method: Cover the surface of the substrate with old newspapers, burlap sacks, or fine soil. The pressure stimulation can promote rapid mycelial growth; alternatively, insert sterilized small wooden sticks into the substrate to a depth of about 2 cm, with a stick spacing of 15 cm. About 15 cm x 15 cm, so that when the mycelium grows and spreads, it touches the small wooden sticks and wraps around them, forming a uniform and dense mycelial mass, developing into mushroom primordia and fruiting bodies, usually increasing yield by about 20%.
4. Hole-punching and sand-filling method: Punching holes and filling them with sand on the surface of the bed substrate can improve the air permeability of the mushroom bed, enhance the water retention capacity of the substrate surface, and make mushrooms emerge evenly on the bed substrate surface, with large caps and thick flesh. The method is: when sowing, use a conical wooden stick with a diameter of 1.5 cm and a length of 30 cm, and punch holes in a plum-blossom pattern at a spacing of 30 cm between plants and rows, with the holes reaching the bottom of the substrate. After two days, fill the holes with yellow sand (the sand should be soaked and sterilized with 1% potassium permanganate solution), filling to about 1 cm above the substrate surface, and at the same time inject 0.5% lime water into the holes. This method can advance mushroom emergence by 4 days, with mushrooms distributed evenly and plump, and biological efficiency can be increased by 28%.
5. Wood ash covering method: Sowing in early spring has low temperatures, mycelial development and growth are slow, and it is prone to contamination by miscellaneous bacteria. If a layer of wood ash is spread on the surface, because wood ash has a strong ability to absorb light and heat, it can increase the temperature of the bed and promote rapid mycelial development. Wood ash can also provide certain nutrients for the mycelium and can inhibit the growth of miscellaneous bacteria, increasing yield by more than 10%.
6. Magnetized water treatment method: When the mycelium has fully grown and the first flush of mushrooms is forming, spray with 4000 gauss magnetized water. This can advance mushroom emergence by 7-15 days, shorten the production period by about 10 days, increase the number of flushes by 1-2, and increase yield by more than 15%.