High-yield techniques of Lentinus edodes in North China

The traditional production of Lentinus edodes is to grow Lentinus edodes in the outdoor shed or covered with soil in the border after the change of color of Lentinus edodes bags. The author puts the Lentinus edodes bags indoors for mushroom production management, which saves time, money, labor, simplicity and high yield.

1 manufacture of bacterial tube

① bag: the culture material formula is broad-leaved tree coarse sawdust 60%, fine sawdust 18%, wheat bran 20%, white sugar 1%, gypsum 1%. The north starts production from February to the end of April, mix the material well, the water content is about 60%, the tightness is moderate, the finger is elastic and does not sink according to the bag.

② sterilization inoculation: the material bag was put into a steamer and the temperature of the material was raised to 100 ℃ for 12 hours and kept for 15 hours. After sterilization, it was stuffy for 12 hours. When the temperature of the material is reduced to 70 ℃ and out of the pot, the bacterial bag is transported to the inoculation room to cool to 30 ℃. Inoculate at sunny morning or evening, avoid high temperature, strictly aseptic operation, and improve the yield of bacterial bag.

③ bacteria change color: put the inoculated bacteria bag into the indoor "well" shape to stack, when the mycelium grows to 1 / 3, the hole is ventilated, when it is full, the hole is pierced once, and the third time is about one month apart. Hang dark curtains indoors or hang sunshade net outside the window to block the sun, regularly ventilate and dissipate heat, prevent high-temperature bacteria from burning, often turn the pile, and if necessary, sprinkle water to cool the room temperature to keep the room temperature at 5: 28 ℃, not more than 28 ℃. When the surface of the bacterial bag changes from white to pink to brown, there are 2 bumps and 3 nodules on the surface, and the color conversion is successful.

2 management of mushroom production

By the end of August and the beginning of September, the mushroom production management could be carried out at room temperature after the Beginning of Autumn at 10: 25 ℃. Rearrange the bacterial bag, vibrate a few times, and startle the mushroom. After the Beginning of Autumn, the temperature difference widened in the morning and evening, opened the curtains and gave light stimulation. Close the window during the day, spray water to the room, the temperature is 18: 22 ℃, the air relative humidity is 80% 85%; open the window at night, the temperature is 10: 15 ℃, artificially enlarge the temperature difference between day and night, air humidity difference, so that mushroom buds appear after 3 days, when the film is carved to release mushrooms. Spray water every day, the relative humidity of indoor air is about 85%, so that 2-3 tide mushrooms can be produced. After November, spraying water and moisturizing the temperature below 10 ℃ can make the bacterial bag survive the winter. when the temperature rises above 10 ℃ in the coming year, water will be injected into the bacterial bag from March to April, and urea, mushroom Dabao and other nutrients will be added to produce 1-2 tide mushrooms. In this way, the bacteria will change color indoors and produce mushrooms indoors, avoiding the transfer of mushroom bags, building mushroom sheds, building beds and other materials and labor, saving money, time, labor, simplicity, easy to popularize and high efficiency.