Bag cultivation of Volvariella volvacea is a relatively new cultivation method, and it is a high-yield cultivation method of Volvariella volvacea, and the yield per unit area is about twice as high as that of traditional heap cultivation. The technical points and main steps of bag cultivation of Volvariella volvacea are described in detail below for friends' reference.

A, soaking grass and mixing method

Cut the straw into 2-3 sections, about 5 cm if possible, and soak it in 5% lime water for 6-8 hours. The water soaked in straw can be reused twice, adding lime every time.

Pick up the straw and put it on the cement floor with a small slope, spread it out and drain the excess water, or wring it out by hand. Hold the straw tightly and drop one or two drops of water, which is the appropriate water content, the water content is about 70%, then add the auxiliary materials and stir evenly.

2. Volvariella volvacea medium formula

① Dry straw is about 87% wheat bran 10% peanut cake powder or soybean powder 3% potassium dihydrogen phosphate 0. 1%.

② The dry straw is about 85% rice bran 10% corn flour, 3% gypsum powder, 2% potassium dihydrogen phosphate and 0.2%.

③ Dry straw 83.5% ten rice bran 10% ten peanut cake powder 3% ten gypsum powder 2% ten compound fertilizer 1.5%.

④ Dry straw 56.5% ten-fertilizer soil 30% ten rice bran 10% ten gypsum powder 2% ten compound fertilizer 1.5%.

3. Bagging and sterilization of Volvariella volvacea culture medium

After the materials are fully mixed, choose 24 cm? 50 cm polyethylene plastic bag, tie one end of the bag tightly with a loose knot of thick cotton thread, and tie it tightly 2 cm away from the mouth of the bag. The mixed culture materials are packed in bags, and the bags are packed while pressing, and the wet weight of each bag is 2-2.5 kg. Then tie the bag mouth tightly with cotton thread.

Sterilization is carried out under normal pressure. After the pot is installed, heat it with strong fire to make the temperature in the pot reach 100℃ as soon as possible and keep it at 100℃ for about 6 hours. Then, take the pot out of the fire and move it into the inoculation room.

Fourth, the inoculation method of Volvariella volvacea adopts aseptic or inoculation box inoculation. Sterilization of aseptic room or inoculation box is the same as that of other edible fungi. When inoculating, untie the rope at one end of the material bag, inoculate the straw mushroom strain, and then tie the rope. Untie the rope tied at the other end, inoculate the strain, and tie the rope again. Generally, one bottle (or bag) can be inoculated with about 12 bags.

Verb (abbreviation of verb) Fungal growth management of Volvariella volvacea Move the inoculated fungus bags into the culture room, put them on the culture rack or pile them on the ground. The stacking height of bacterial bags should be determined according to the season. For piles with high temperature, the number of layers should be less, and for piles with low temperature, the number of layers can be appropriately increased. Generally, it is advisable to pile 3-4 layers.

The temperature of the culture room is preferably controlled at 32-35 degrees Celsius. Four days after inoculation, when the mycelium of the fungus bag reaches 2-3 square meters, loosen the rope at the mouth of the bag to increase the oxygen in the bag and promote the growth of the mycelium. Under suitable conditions, the mycelium can grow in the whole bag within 10- 13 days.

Production management of intransitive verb Volvariella volvacea. Move the fungus bag filled with mycelium into the cultivation room, roll up the bag mouth, put it on the bedstead or pile it up against the wall for 3-5 layers, and cover it with plastic film to raise the relative humidity of the air in the cultivation room to about 95%. After 2-3 days of management, mushroom buds begin to form, and then the film can be opened.

When the mushroom buds grow to small buttons, water can be sprayed on the mushroom bag, and the mushroom buds can be harvested when they grow to egg-shaped stage. Generally, 2-3 batches of mushrooms can be harvested.