Secondary fermentation high efficiency cultivation method of Agaricus bisporus

Production season arrangement

The optimum temperature for the growth of the mycelium of the mushroom is 25-27°C, and the optimum temperature for the growth and development of the mushroom is 12-16°C, which means that it requires cool before and after the temperature. According to the local temperature characteristics, the appropriate sowing date should be around August 15. That is, from July 16 to August 3, building a heap fermentation, from August 4 to August 14 post-fermentation, on the 3rd of September about mycelium growth after eating full of material, covering the soil, the average temperature in late September below 22 °C At the same time, the grasshopper covers the greenhouse temperature at night to harvest the first tidal mushroom. After entering the month of November, the grasshoppers will cover the temperature at night, and until mid-November, they will collect 3-4 tumbler mushrooms before freezing. Mushroom production requires mushroom sheds to reach the winter greenhouse standards, that is, the winter temperature is stable at 10-16°C, and the winter mushrooms are listed on the New Year's Day and Spring Festival by regulating temperature and humidity. If the shed (room) conditions are poor, can not produce mushrooms, we must pay attention to the production of spring mushroom, requires the early stage of grass cover open night cover to warm, noon spray water; late grass cover night cover, sooner or later, spray water ventilation, guarantee In the middle of March to mid-May, three spring mushroom (Spring mushroom production management must be diligent and refined).

Secondary fermentation process

The ingredients are the same as the one-time fermentation method. The mushroom shed covers an area of ​​333 square meters. It uses 4200 kg wheat straw, 2100 kg dried chicken manure, wheat bran, urea, superphosphate, gypsum, quicklime, limestone powder, and enzymes. Bacteria and so on. If it is a three-dimensional cultivation, the material needs to be expanded by 2.26 times. The specific approach is: The first fermentation, the pile outside the mushroom shed to ferment about 16 days, turning three times. Three days after the third turnover, when the temperature in the heap is above 55°C, it is quickly moved onto a bed frame in a pre-sterilized mushroom shed, and is evenly stacked in a slot and immediately closed in a mushroom shed to cover the grass. thatch. Outside the mushroom shed, a petrol tank is erected. After the water is filled, the fire is quickly heated and the steam is piped into the mushroom shed for secondary fermentation. A thermometer was installed in the four corners of the shed and in the stack. When the temperature reached 60-65°C in each place, the fire was reduced. Steam was stopped for 3 hours and the heat was maintained for 48 hours. Then uncover the grasshopper, open the vents, use a sterile tool to turn the stack on the mushroom bed and turn it into a solid leveling layer. It becomes a culture layer with a thickness of 25 cm and a smooth surface. Continue to cool down for 3-5 days. . Seeding begins when the shallow temperature inside the pile drops to 28°C.

Cover management and top dressing

The soil used for earth covering should be disinfected firstly. When the soil is covered, the soil should be covered with 3 cm of coarse soil first, and after spraying and spraying water for 3 days, the mycelium should be closed for 5 days. Then the coarse earth seam should be covered with fine soil, and the ventilation and water spray should be used to regulate the wet soil. Afterwards, conduct large ventilation and cool down to promote mushrooming. After the first tidal mushroom, the temperature in the greenhouse should be kept within the optimal mushrooming temperature range of 12-18°C as much as possible. After two tidal mushrooms, when the buds grow to the large soybeans, combine mushroom water to chase 0.3%-0.5% urea solution, or 2% raw soybean milk, or 2% biogas liquid fertilizer, or fresh livestock urine, or The cut mushroom and inferior mushroom were boiled for 10 minutes, filtered and water was added to 50 kg, and the cooled fertilizer was sprayed. In addition, attention should also be paid to timely harvesting and proper operation in order to improve the quality of fresh mushrooms.

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