Pleurotus ostreatus outdoor raw material cultivation technology

1 Selecting land for cultivation: Choose a flatland or paddy field where the leeward is near to the water as a cultivation site, and make the site 1.2 meters wide and of unlimited length. When excavating, leave 30 centimeters of soil in the middle of the raft first, and then dig 16-17 cm wide and 20 centimeters deep in the middle of the raft. Dig a pit 45 centimeters wide and 10 centimeters deep on each side of the raft. The excavated earth mound is about 10 centimeters high around the concrete wall. After excavation, the site is first sprayed with concentrated lime water and 10% bleaching powder, and then sprayed with 0.5% dichlorvos solution. Thoroughly kill and sterilize.
2 Preparation of culture materials: selection of insect-free, mildew-free agglomerated cotton seed shells, exposed to sunlight for 1 to 2 days, 2% gypsum, 3% phosphate fertilizer, 1.5% lime and 0.1% by dry weight of cotton seed hull Carbendazim (50% powder), add water and mix well after mixing, moisture content 60%.
3 Seeding: Spread the prepared culture material into the material pool, about 13 kilograms of material per square meter, and spread them all at once. The amount of bacteria used is about 10% of the weight of the dried cotton seed shells. The seeds are sown at a distance of 55 cm from the seedlings, and then they are sown with a smashy seed on the surface of the material. Finally, they are beaten with a wooden board, and the film is covered. The film is then covered. straw.
4 Fungus management: After inoculation, the temperature should be below 20°C. Check the germination status from the third day. The temperature should be above 20°C. Check on the third day. If the temperature in the membrane exceeds 28°C, it can be ventilated and cooled in the evening, but do not frequently remove the membrane for ventilation so as not to cause contamination with bacteria. In fact, as long as there is water flow in the gutters, no high temperatures will generally occur. If contamination with bacteria is found, lime powder can be used to cover the pollution.
5 fruiting management: the temperature is about 25 °C, 18 to 20 days after sowing hyphae can be filled with material, 21 to 25 days can be found in fruiting primordia. When the current camp reaches more than 60%, a thin film bow shed can be erected, and the rice straw can be adjusted on the film to adjust the light. The first tidal mushroom does not need replenishment, and it can be flooded into the ditch in case of particularly dry weather. After the first tidal mushroom was harvested, let the material air-dry for 2 days and then flood the water with the immersed material surface. Note that the water should be clean and hygienic. After 1 to 2 hours, the water should be drained. After 2 days, it is often irrigated in the ditch. After the material is immersed in water, it shall be additionally covered with a mulching film surface. When 70% or more of buds (primary basal) can be removed, the mulching film shall be removed for routine management. The second tidal mushroom was air-dried for 2 days before harvest and then covered with 1 to 2 cm thick soil, and then the water was immersed for 2 hours to immerse the material surface, and the water was drained before entering conventional management.
(This article is provided by Han Chaozheng, Institute of Edible Fungi, Binhai County, Jiangsu Province, China. Tel: 0515-4103012 13851113822)

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