Selection and production of 1 strain There are many varieties of Dictyophora rubra domesticated and cultivated in China at present, so it is advisable to choose excellent varieties with quick spawning, early fruiting, high yield and good taste of dried products, or choose varieties that can be harvested continuously for 2-3 years after inoculation with 1 year.
The formula of original seed and cultivated seed is: sawdust or cottonseed hull 76%, wheat husk 20%, sugar 1%, lime powder 2%, calcium superphosphate 0.3%, urea 0.3%, potassium dihydrogen phosphate 0.3%, magnesium sulfate 0. 1%, and the feed-water ratio1:/. Mix, bottling, slightly loosen, drilling holes in that middle, sterilizing at the pressure of 1.5 kg/cm2 for 2.5 hour, and inoculating when the culture medium is cooled to 25 DEG C.. The inoculated seeds can be cultivated in a ventilated and dark culture room at 22 ~ 24℃ for 70 ~ 80℃, which can be used for expanding culture and cultivation.
2 Selection of cultivation season and place Dictyophora rubra needs to grow in a humid environment, and the suitable cultivation place is 500 ~ 1000 meters above sea level, the suitable time is February ~ May, 9 ~165438+1October, and the optimum temperature is 20 ~ 26℃.
Indoor cultivation adopts underground or shed. Cultivation scaffolding should be set up in 2 ~ 3 floors, each with a height of 60 cm and a width of 1.3 m ... Outdoor, choose cool, fertile, semi-sandy and acidic pasture, or sandy soil, but cover with humus soil and add sandy soil. The farm should also be built with a sunshade nearly 2 meters high.
The preparation of culture medium and the treatment of perishable raw materials will make the fungus eggs of Dictyophora rubra wither and die due to lack of nutrition, so the culture medium should be fresh and dry. It is best to process the wood into a length of 10 ~ 12 cm. Miscellaneous bamboo and Phyllostachys pubescens slices can be cut into 50 cm long and used after fracturing. The proportion of bamboo in the culture medium should be above 30%, but bamboo filaments and bamboo chips are not suitable for use because of their poor water retention. Before planting raw materials, clean them with 5% lime, soak them in water for 6-7 days, then soak them in clear water for 2 days, then clean them to reduce the pH value to 6-6.5, and then take them out for use. You can also use the fermentation method, so that the raw materials are soaked in water and piled into a fermentation pile with a height of 1.2m and a width of 2m, and covered with a film. When the central temperature reaches 65℃, turn over the pile, usually once every 7 days, and use it when the raw materials are brown and have no ammonia smell.
4 Cultivation method Before sowing, spray 1000 times of methamidophos pesticide aqueous solution and add 30% formaldehyde to disinfect the cultivation site. 2 ~ 3 days before sowing, loosen the pastoral soil to make a bed with a height of 50 cm and a width of 1.3 m. When sowing, first spread wet mixed culture material with a thickness of 4 ~ 6 cm, then sow, then spread culture material with a thickness of 8 ~ 10 cm, and sow again. Spread the third layer with a thickness of 2-4 cm, that is, cover with humus with a thickness of 4-6 cm. Humus soil needs to be disinfected first, and the soil water content should be kept dry and moist. Then cover with 2 cm thick slightly wet bamboo leaves, thatch or pine needle leaves, and finally cover with plastic film for thermal insulation and moisture growth. 20 ~ 25 kilograms of dry material and 3 ~ 4 kilograms of strains are used per square meter. When sowing, the strains are required to be uninterrupted and strictly protected from light.
5. Scientific management. After sowing, control the water content of the culture material to be 65% ~ 75% and the relative humidity of the air to be 85%. No need to spray water for the first 15 days. After 7 days, uncover the film and ventilate for 30 minutes every 3 days. When the temperature exceeds 30℃, uncover the film and cover it at night.