New cultivation techniques of Ganoderma lucidum in semi-underground arch shed

the adoption of that method for culture Ganoderma lucidum in semi-underground arch shed with fungus bag built on the wall and covered with soil has many advantage, namely, the cost of building the semi-underground shed is lower than that of building the shed on the ground, and the cost of building the shed can be saved by 40 percent; Fourth, the semi-basement arch shed is warm in winter and cool in summer. When the outdoor ground temperature is about 40℃ in summer, the temperature in the shed does not exceed 36℃, and in winter it is 3℃--4℃ higher than the ground. The skylight on the roof of the shed can meet the requirements for light and ventilation. Its technical brief introduction is as follows: 1, choose a field to erect a shed to choose a sunny clean site, dig 3 meters wide. 3.3 The pit is 1.5 meters deep and 40 meters long. Every 1 meter on the pit, bamboo is used to set up herringbone frames. Oil felt is laid first and then straw curtain is covered. Skylights are opened alternately at every 1.5 meters on the ceiling. After setting up the shed, fumigate with sulfur to kill insects, then fumigate with potassium permanganate or formalin solution, and finally sprinkle lime on the ground. The area of the arch shed erected is 120 square meters. 2. The formula adopted for preparing the culture medium is as follows: ① cottonseed hull 88%, bran 8%, gypsum, lime 1%, phosphate fertilizer 2%;② cottonseed hull 44%, sawdust 44%, bran 10%, sugar, gypsum 1%;② sawdust 78%, bran or fine rice bran 20%, sugar, gypsum 1%. The water content is about 65%, and the pH value is 6.5--7.0. Mix the materials immediately into plastic bags, each bag about 500 grams of materials. then sterilized, autoclaved for 2 hours or sterilized under normal pressure at 100 DEG C for more than 8 hours. Two inoculation methods are adopted, the mouth is tied with a rope, and after inoculation, the bacteria are put into the arch shed, 5 - 6 bags are placed on each layer, the positions are exchanged every week to balance the temperature of the material, and the contaminated bacteria bags are checked for contamination. Generally in 25℃-30℃ culture for about a month hyphae can grow full material. Third, half of the bag covered with soil will sprout good bacteria bag, with a blade in the middle of the bacteria cut a circle, and then remove the upper half of the plastic bag, keep the next half of the plastic bag. One end of the removed plastic bag is arranged horizontally against the long side of the arch shed, the gap of the bacteria bag is filled with soil, a layer of bacteria bag is arranged to cover the soil with a thickness of about 3 cm, and water is sprayed to make the soil absorb enough water, and then the next layer is arranged in turn, and 6 - 8 layers can be arranged. In the middle of the shed, the two ends of the plastic bag can be arranged opposite each other, and the same can be arranged in 6 - 8 layers, still covered with soil. This forms three fungus walls out of Ganoderma lucidum, fungus wall between the two walkways 70 cm wide. After a week, cut off the exposed plastic bag, according to conventional management to let it out of the fungus. The key point of management is to maintain soil moisture content. The method of replenishing water is to spray water from the bacterial wall layer and infiltrate it should be a small amount for many times to maintain air humidity of 80%--95%. During the stage of rice extraction, open the skylight for ventilation and pay attention to disease prevention and pest control. Add nutrient solution while spraying water.