Six Methods for Increasing Production of Edible Fungi

First, temperature difference stimulation method bacteria bed cover film heating during the day, in the evening or in the morning to remove the film to cool down. The relative humidity is kept below 70% in the early stage of mycelial growth and 85%-90% in the later stage, which is beneficial to the formation of fruiting body.

2. When the culture material is prepared by drug stimulation, the yield can be increased obviously by adding phosphate (potassium dihydrogen phosphate, calcium superphosphate), sulfate (magnesium sulfate, calcium sulfate), vitamin B and so on. Spraying triacontanol on the culture surface in the later stage of mycelial growth can promote mycelium growth. It can generally increase production by 10% to 15%.

3. Scratching method when the hyphae grow all over the culture material surface, sweep the material surface gently with a clean bamboo broom to remove or destroy the overgrown hyphae and old hyphae on the surface, expose the new hyphae, and then spray water and cover the film to keep moisture and heat preservation. 7 days after sweeping, mushrooms can appear. Generally speaking, it can increase production by about 10%.

Fourth, shock bacteria method when the culture material surface is full of mycelium, extrude and pat the material surface with a strong elastic lath. During the operation, the force should be uniform, no deep marks should be left, and the material surface should not be destroyed. This can promote the growth of mycelium and the rapid differentiation of fruiting body. This method is suitable for Lentinus edodes, Pleurotus ostreatus, Pleurotus ostreatus and Auricularia auricula, and can generally improve the growth efficiency by about 15%.

Fifth, the contact method covers the surface of the culture material with old newspapers, sacks and fine soil, which can promote the rapid growth of mycelium by pressure stimulation. Sterilized sticks (1 cm in diameter and 3 cm in length) can also be inserted into the material about 2 cm deep, with a density of 15 cm × 15 cm, so that when the mycelium grows and spreads, it touches the stick and winds around it to form a uniform and dense mycelium. Generally speaking, it can increase production by about 20%.

Sixth, the hole filling sand method can improve the air permeability of the bacterial bed, improve the water retention of the material surface, and make the mushroom uniform, big and thick. Methods: when sowing, a conical stick with a diameter of 1.5 cm and a length of 30 cm was used to make a hole in the shape of plum blossom according to the specification of 30 cm in both plant and row spacing, and the hole was deep to the bottom of the material. Two days later, fill the hole with yellow sand (soaked with 1% potassium permanganate solution for disinfection). Fill to 1 cm higher than the material surface; at the same time, inject 0.3% 0.5% lime water into the hole. By using this method, the mushroom can be produced 3-4 days in advance, and the mushroom can be produced evenly and the mushroom body is hypertrophy.