How to select Pleurotus ostreatus strains? How to cultivate it?

How many kinds of fungus food have we eaten? Flammulina velutipes, umbrella mushrooms and other more common strains, have you ever eaten Pleurotus ostreatus? How to select Pleurotus ostreatus strains? How to cultivate it? Next, the editor will tell you about it!

First, how to select Pleurotus ostreatus strains?

1. Variety selection

Pleurotus ostreatus can be divided into very early species (7 ℃ ~ 20 ℃), early species (5 ℃-15 ℃), mesophytic species (7 ℃-12 ℃) and late species (5 ℃-10 ℃) according to different temperature. Producers should select excellent varieties according to local climate, cultivation methods and purposes. The main varieties in the main producing areas are Zaofeng 112, C31and so on.

2. Strain selection

When selecting bacteria, it is required not to degenerate and not to mix, the mycelia are white and fluffy from the outside, and the growth is dense, uniform and robust; the bacteria age is required to be in 50mur60 days, not aging, not shrinking, no stagnant water phenomenon; when selecting strains, they should be used in combination with various varieties, not a single variety, to prevent mushroom production from being too concentrated and affecting product sales.

Second, how to cultivate Pleurotus ostreatus?

1. Proportioning and mixing

According to the formula of 1000 bags, 500kg of hard wood sawdust, 500kg of soft wood sawdust (or corncob, sorghum hat, firewood and grass, etc.), 120kg of wheat bran, 120kg of rice bran, 10kg of gypsum. The ingredients should be added strictly according to the formula, stir 3 times for 4 times, mix the dry and wet materials well, or spread the materials evenly by layer, stir and sift them, and add water at the same time, so that they can be clutched into a ball and loose as soon as they are loosened. The watermark on the hand shall prevail, and the general water content is 60% and 65%.

2. Bagging

Choose 20 cm × 55 cm × 0.05 cm polyethylene plastic bag. Bagging should be properly tight, with no depression in the hand-grasping bag, 1.25 kg of dry material and 2.2 kg of wet material in each bag. After bagging, use thread to tie the mouth, first straight, then turn and then tie, that is, the "double-layer binding method" is used to avoid air leakage and cause water bags during sterilization.

3. Sterilization and inoculation

When loading the pot for sterilization, arrange the material bag into a "well" shape, cover it with a thin film, cover it with a warm quilt or straw curtain, and cover it with a sandbag at the top. Heat to 100 ℃ and keep it for 12 hours, and then get out of the pot and enter the inoculation room after about 1 hour. Before inoculation, the utensils in the greenhouse were thoroughly sterilized with formaldehyde, sulfur and white ash, and the inoculation began when the temperature of the material dropped below 25 ℃. One person punches holes and wipes the bag with alcohol, two people pick up the bacteria, and one person carries the bag. During this period, spray disinfectant with a sprayer every half an hour. After a good seed after the word discharge, press the upper bacterial bag to press the bottom of the hole code, the top layer of the hole down, you can enter the germ stage.

4. Bacteria

During the germicidal period, there is no need for ventilation in the first two weeks, and the temperature should be controlled at 8: 10 ℃. It can be properly ventilated in the 3rd and 4th week, with high temperature in the morning and evening, and low temperature at noon. The temperature was controlled below 20 ℃ in the 4th week. In a word, the best temperature is no more than 25 ℃ during the germicidal period, and the mycelium is full of mycelium after 30-40 days.

After reading the above, you probably already know how to select the strains of Pleurotus ostreatus. If you don't know how to cultivate them, you can learn the methods mentioned above. I hope this article will be helpful to you.

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