Observation 95460: Copelandia cyanescens (Berk. & Broome) Singer
When: 2012-05-25
Herbarium specimen reported

Notes: Growing in my friends closet on 90% horse manure and 10% vermiculite.

Temperature was 78 degrees, humidity 99%.

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By: Alan Rockefeller (Alan Rockefeller)
2012-06-03 19:53:06 PDT (-0700)

Blue Helix said:

These are _OttO_’s MeKong river specimens from Cambodia that yielded 70% BE for me last time. This grow was closer to 50% BE over 6 or so flushes, which is still a great yield that I believe anyone I’ve ever met would be jumping for joy to achieve (given the petite species).

Alan mentioned the humidity, but I wanted to add that I keep the internal humidity at 99 or 98% because I have considerably air turn over via PC fans, although never direct a PC fan directly onto a fruiting surface; it’ll dry out in a matter of hours or even minutes. In a typical grow room or chamber where the internal air turnover is a fraction of mine, you’d want a corresponding lower humidity to achieve the same surface evaporation (perhaps 90 to 95% would be better). I have tried relatively still air chambers with lower humidity before and find they do not yield as well for this species and tend to result in fruits with longer stems and smaller caps.

The optimal substrate depth is about 1" to 2" with a casing depth of .25" to .5" I’ve found. Deeper dimensions than this can lower yields. Substrate formulations of 90% horse manure, vermiculite, and 10% WBS at exactly 65% moisture content have always worked best. Do not guess on the moisture. Take a 20g sample and nuke it dry. You should have about exactly 7g dehydrated. Just mixing until it feels right is bogus advice, and I really wish I had not actually taken that line seriously in some books I read early on. In terms of nutrition, less is more for substrates, especially when you are dealing with a delicate species like this that cannot fend off mold well. It’s not the substrate nutrition that usually limits mushroom yields; it’s the precision of the environment and fullness of the casing run. Work on those and forget the magic substrate formulas.

Casing pH is best around 7.0 to 8.0 and I personally use 1/3 vermiculite, 1/3 coco coir, 1/3 peat moss, 1/10th aragonite (as sold for marine aquariums), and about 1/20th agricultural lime flour (calcium carbonate targeted for soil pH adjustment – no dolomite). I also add maybe 1/100th calcium hydroxide, but if you don’t have a pH meter, don’t add this; you can totally screw things up with it and it’s not needed.

The yield at 50% BE is the equivalent to about 200% to 250% BE of cubensis because the fruits are 4X to 5X stronger in my experience. I know of no one that can achieve a yield of 250% BE growing cubensis, so I think it’s safe to say that if you get these right, they will always produce more magic than cubensis per pound of substrate. On the other hand, Pan Cyans are temperamental. If they aren’t happy and the environment is not stable, they won’t yield much anything.

By: John Steinke (John Steinke)
2012-05-26 04:26:02 PDT (-0700)

Horse manure in a closet. You just can not beat “Fugal Friends”.

Created: 2012-05-25 07:40:45 PDT (-0700)
Last modified: 2015-03-05 10:51:25 PST (-0800)
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