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Nibin
Getting there



Registered: 11/29/05
Posts: 4,480
Last seen: 10 years, 8 months
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Re: Hey Experts, what does 50% peat add except a pain in the butt? [Re: DontPlay]
#7838157 - 01/06/08 03:15 AM (16 years, 26 days ago) |
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Quote:
DontPlay said:
Quote:
anarchOi said: remember; cubensis do not need to be cased.
Is this true, If they don't what are you supposed to do to a tray of grain or spawn ? .
The problem with straight grain is that it doesn't retain water well, so it will require a casing, but more for the water reservoir than for the microclimate. A way around this is to make a mix with grains and some verm in it, for moisture retention.
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fastfred
Old Hand



Registered: 05/17/04
Posts: 6,899
Loc: Dark side of the moon
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Re: Hey Experts, what does 50% peat add except a pain in the butt? [Re: Nebula]
#7838889 - 01/06/08 11:15 AM (16 years, 26 days ago) |
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Quote:
Nebula said: BTW, Staments does not recommend 50/50+. This is his recipe: 10 units peat moss 0.5 unit calcium sulfate 0.5 unit calcium carbonate Calcium sulfate provides looseness (particle separation) and mineral salts especially sulfur and calcium, essential elements for mushroom metabolism.
What's with the "units"? Is this weight or volume? That will make a pretty big difference.
-FF
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RogerRabbit
Bans for Pleasure



Registered: 03/26/03
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Re: Hey Experts, what does 50% peat add except a pain in the butt? [Re: fastfred]
#7838909 - 01/06/08 11:22 AM (16 years, 26 days ago) |
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Agaricus farmers use peat without the verm, while people growing cubes tend to mix peat and verm. There's a reason for this. Agaricus fruits at ten to twenty degrees cooler than cubensis in very low light. There is far less evaporation of moisture from the casing layer at lower temperatures, thus the reservoir effect of vermiculite is not as necessary. For a given volume, verm holds more moisture than peat, thus combining the two results in a compromise that favors fruiting in warmer conditions.
'Units' refers to volumetric measurements. RR
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Nibin
Getting there



Registered: 11/29/05
Posts: 4,480
Last seen: 10 years, 8 months
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Re: Hey Experts, what does 50% peat add except a pain in the butt? [Re: fastfred]
#7838927 - 01/06/08 11:27 AM (16 years, 26 days ago) |
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The units will be volume (weight doesn't make sense, at least not to me) and just substitute units for whatever you want. It is the same as parts.
10 parts peat and 0.5 parts each of the others
-------------------- Newcomers guide-----> For all things shroomy
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Nebula
Stranger


Registered: 10/22/07
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Re: Hey Experts, what does 50% peat add except a pain in the butt? [Re: RogerRabbit]
#7839286 - 01/06/08 01:08 PM (16 years, 26 days ago) |
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RogerRabbit said: Agaricus farmers use peat without the verm, while people growing cubes tend to mix peat and verm. There's a reason for this. Agaricus fruits at ten to twenty degrees cooler than cubensis in very low light. There is far less evaporation of moisture from the casing layer at lower temperatures, thus the reservoir effect of vermiculite is not as necessary. For a given volume, verm holds more moisture than peat, thus combining the two results in a compromise that favors fruiting in warmer conditions.
'Units' refers to volumetric measurements. RR
Thanks for explaining this! Captain Cubensis now has sufficient information to know why 50/50+ is recommended for growing cubes and why it isn't the best choice for commercial growers
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Captain Cubensis
Bleeding HeartLiberal


Registered: 09/18/07
Posts: 648
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Re: Hey Experts, what does 50% peat add except a pain in the butt? [Re: Nebula]
#7839413 - 01/06/08 01:30 PM (16 years, 26 days ago) |
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10 parts peat to .5 parts Calcium Sulfate means 5% gypsum right?
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Captain Cubensis
Bleeding HeartLiberal


Registered: 09/18/07
Posts: 648
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Re: Hey Experts, what does 50% peat add except a pain in the butt? [Re: Nibin]
#7839443 - 01/06/08 01:36 PM (16 years, 26 days ago) |
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Nibin said: The units will be volume (weight doesn't make sense, at least not to me) and just substitute units for whatever you want. It is the same as parts.
10 parts peat and 0.5 parts each of the others
It means 5% gypsum, and 5% oyster flour.
Our recipe may look like this:
5 Parts Peat (Fine) 5 Parts Vermiculite (Medium Grade) .5 Parts Gypsum (Fine) .5 Parts Oyster Flour (Fine)
Or 45/45/5/5, more simply 45/45/10.
The casing mix being 90% an even mix of peat and verm, and 10% and even mix of Oyster Flour and Gypsum.
50/50+ says it all.
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laten
Stranger

Registered: 11/08/07
Posts: 78
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Re: Hey Experts, what does 50% peat add except a pain in the butt? [Re: Captain Cubensis]
#7839491 - 01/06/08 01:44 PM (16 years, 26 days ago) |
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peat and Pete.
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anarchOi
Ellenalien is fat.



Registered: 08/06/07
Posts: 2,293
Loc: ASE
Last seen: 12 years, 11 months
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Re: Hey Experts, what does 50% peat add except a pain in the butt? [Re: laten]
#7842036 - 01/07/08 12:11 AM (16 years, 26 days ago) |
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i hated that show^ lol
nibin if you put your grain dish in a terrarium grain without a casing works fine
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Nibin
Getting there



Registered: 11/29/05
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Re: Hey Experts, what does 50% peat add except a pain in the butt? [Re: anarchOi]
#7842299 - 01/07/08 04:56 AM (16 years, 25 days ago) |
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anarchOi said: i hated that show^ lol
nibin if you put your grain dish in a terrarium grain without a casing works fine
Have you actually done that and compared it to a cased grain? If you had you would have realized that the difference is huge.
We aren't talking about ambient RH here but substrate moisture content. Grain does not hold water well, while coir or hpoo do. So when the uncased grain pins, there is not enough water content in the substrate for good fruit growth.
The way around this is to case your grains (in this case, the casing apart from helping provide the microclimate for pinning behaves as a water supply for the grain) or to mix some verm into your grain jars before sterilizing to act as the water reservoir of the substrate.
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anarchOi
Ellenalien is fat.



Registered: 08/06/07
Posts: 2,293
Loc: ASE
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Re: Hey Experts, what does 50% peat add except a pain in the butt? [Re: Nibin]
#7842755 - 01/07/08 09:19 AM (16 years, 25 days ago) |
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yes i have nibin
the problems i had though involved bubblers splashing little drops of water on my casings and everything got trich
but prior to that the only real problem i had with straight grain was that the mushrooms were tough to get off and damaged the substrate alot
also Nibin, would you include sprinkling verm a casing layer? that ended up being the method i used for all grain trays
never got large mushrooms because it was a thin substrate but they came plenty and many many times
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Nibin
Getting there



Registered: 11/29/05
Posts: 4,480
Last seen: 10 years, 8 months
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Re: Hey Experts, what does 50% peat add except a pain in the butt? [Re: anarchOi]
#7842766 - 01/07/08 09:23 AM (16 years, 25 days ago) |
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Quote:
anarchOi said:
also Nibin, would you include sprinkling verm a casing layer? that ended up being the method i used for all grain trays
There you go, you cased it.
-------------------- Newcomers guide-----> For all things shroomy
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