How to improve the quality and yield of volvariella volvacea by increasing yield and benefit

Planting volvariella volvacea and proper use of some measures can achieve the effect of high yield and yield increase. Specific methods:

Straw mushroom

Primary and secondary vaccination:

The adoption of secondary inoculation measures is beneficial to the yield increase of volvariella volvacea. The mycelium of volvariella volvacea grows fast and ages easily, which weakens its vitality and can not make effective use of the nutrients in the culture material to continue to produce mushrooms. After harvesting the first tide mushroom, pry loose the material surface, pour lime water, adjust the PH value of the culture material to 8: 9, then sow the bacteria on the material surface, and cover a thin layer of fermented culture material after sowing. You can also turn the material block over after the first and second tide mushrooms are harvested, turn the bottom culture material to the surface, spray 1% lime water, replenish water, adjust the pH, and then inoculate the surface for a second time. The amount of inoculation is 20.3%, which generally can increase production by about 30%. When straw mushroom is cultivated with rice straw, bacteria can be stuffed into the space between the grass layer 4 days after straw sowing, and the inoculation amount is about 20% of the first dosage. In this way, when the first tide of mushrooms is collected, the bacteria sown for the second time can be decomposed from the haystack, accumulate nutrients and continue to produce mushrooms.

Second, adjust the pH:

The growth of volvariella volvacea will consume a lot of nutrients and produce metabolites, in which organic acids can increase the acidity of culture materials and affect the recovery of straw mushroom mycelium and continue to produce mushrooms. After the first tide mushroom harvest, adding some nutrient solution and adjusting the culture material to slightly alkaline can promote the recovery of mycelium, prolong the mushroom harvest period and increase the mushroom yield.

1. Spraying 3% lime water on the culture material can not only replenish the water, but also make the culture material slightly alkaline.

2. Spray 0.1% urea and bran water on the culture material (100 kg of water plus 10 kg of bran, boil and filter, take 50 kg of filtrate and 50 kg of clear water). The amount of urea is 0.1% to 0.2%, and the amount should not be too much, otherwise it is easy to produce mixed bacteria.

3. Supplement dry cow dung and human urine. Break the dried cow dung, add 40% human urine, mix well, before use, pile it up for 1 day, and apply it to the material surface after picking a tide of mushrooms. If you add chicken and duck dung, the effect will be better.

3. Implementation of soil cover:

Straw mushroom mulching can improve the moisturizing property of the culture material and the adaptability to the change of humidity, enlarge the mushroom body, reduce the dead mushroom, and increase the yield by 20% to 40%. The covering material can be vegetable garden soil (dug below 8~10cm), and the thickness of covering soil should be 2cm.

Fourth, cover the film:

After volvariella volvacea inoculation, covering the film around the bacterial bed can increase and stabilize the material temperature, maintain humidity, increase the concentration of carbon dioxide in the microclimate around the material surface, promote the reproduction of relevant microorganisms and promote the mycelium growth of straw mushroom. Cover the film immediately after inoculation, sooner rather than later. In order to prevent the film from clinging to the material surface to affect the normal respiration of bacteria, some rice straw or wheat straw soaked in lime water can be sprinkled on the material surface. After covering the film, check the material temperature. If the material temperature exceeds 40 ℃, remove the film in time to cool down. After covering the film for 4 days, the film should be ventilated regularly or set up with bamboo to prevent the surface mycelium from growing and affecting the extension of the mycelium into the material. When mushroom buds appear, the film should be opened or propped up in time to prevent the mushroom buds from being suffocated by hypoxia.