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Serious hard times finding dung and quality compost around here which I understand is the top choice for agaricus bisporus. I also understand it can be fruited from rye grain but how about straw spawned with rye grain?
Vedder, P.J.C.,Moderne Champignonteelt, culemborg, The Netherlands, 1971
-------Till Method------------ A method of preparing a nutrient base for Agaricus bisporus without composting designed by a german researcher named Otto Till.
The recipe is as follows:
chopped wheat straw 120 kg peat 50 kg calcium carbonate 50 kg cottonseed meal 15 kg soybean meal 15 kg lucernmeal 50 kg water 700 kg
These (dry) materials are thoroughly homoginized and the moisture content is brought up to 70%. pH= 6.8 Iron barrels are filled with this mixture and are sterilised for 5 hours at 130oC. When the barrels have cooled down they are spawned with sterile (grain) spawn. Aeriation is provided by tubing that blows HEPA filtered air. [Because no mixing takes place] Mycelial growth takes more time than usual; 5 weeks. After this timespan the fully colonised mixture is mixed with 5% moistened and pasteurised cottonseed meal. Normal trays are filled in a layer of 11 cm. This is covered with a normal layer of non-sterile casing soil.
Yields were high, but no commercial farming takes place because of the high costs and the difficulty of the proces (sterile work.)
well since high costs are only relative, and we know our sterile techniques....
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