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(:title Psilocybe cubensis Growth Parameters:)

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Psilocybe cubensis Growth Parameters

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Psilocybe cubensis Growth Parameters

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Psilocybe cubensis Growth Parameters

taken from

Paul Stamets and J. S. Chilton: The Mushroom Cultivator
If you want more information (and there is plenty!), go buy the book

Mycelial Types: Rhizomorphic to linear; whitish in overall color but often bruising bluish where injured.
Standard Spawn Medium: Rye grain. See Chapter III.
Fruiting Substrate: Rye grain; wheat straw; leached horse or cow manure and/or horse manure/straw compost balanced to a 71-74% moisture content.
Method of Preparation: See Chapters III, V, and VI. Pasteurization achieved through exposure to live steam for 2 hours at 140°F. throughout the substrate. Straw or compost should be filled to a depth of 6-12 inches. Straw should be spawned at a rate of 2 cups/sq. ft.

Spawn Run:
Relative Humidity: 90%.
Substrate Temperature: 84°F - 86°F. Thermal death limits have been established at 106°F.
Duration: 10-14 days.

 CO2: 5000 - 10,000 ppm.  

Fresh Air Exchanges: 0 per hour.
Type of Casing: After fully run, cover with the standard casing whose preparations described in Chapter VIII. Layer to a depth of 1-2 inches. The casing should be balanced to an initial pH of 6.8 - 7.2.

Post Casing/Prepinning:
Relative Humidity: 90 %.
Substrate Temperature: 84 - 86°F.
Duration of Case Run: 5-10 days.
CO2: 5000-10,000 ppm.
Fresh Air Exchanges: 0 per hour.
Light: Incubation in total darkness.

Primordia Formation:
Relative Humidity: 95-100%.
Air Temperature: 74-78 °F.
Duration: 6-10 days.
CO2: less than 5000 ppm.
Fresh Air Exchanges: 1 -3 per hour. For practical purposes, fanning a terrarium 2-3 times a day is sufficient)
Light: Diffuse natural or exposure for 12-16 hours/day of grow-lux type fluorescent light high in blue spectra at the 480 nanometer wavelength. (See Chapters IV and IX).

Cropping:
Relative Humidity: 85-92%. (For cakes: 95-100% )
Air Temperature: 74-78 °F.
CO2' ': less than 5000 ppm.
Fresh Air Exchanges: 1 -3 per hour. (For practical purposes, fanning a terrarium 2-3 times a day is sufficient)</font>
Flushing Pattern: Every 5-8 days.
Harvest Stage: When the cap becomes convex and soon after the partial veil ruptures.
Light: Indirect natural or same as above.
Yield Potential: Average yields are 2-4 Ibs. /sq. ft. over a 5 week cropping period. Maximum yield potential has not been established.
Moisture Content of Mushrooms: 92% water; 8% dry matter.
Nutritional Content: Not yet established.

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