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 Peace_Patrol
Rambling hippie
Registered: 04/22/02
Posts: 350
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Last seen: 20 years, 10 months
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 Most optimal way to case one quart? (tray dimensions etc) 
#1371013 - 03/12/03 09:22 PM (22 years, 3 months ago) |
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Hey everyone...
Has anyone ever done any conclusive experiments on the dimensions of casings (substrate layer) using the same amount of substrate, for the most optimal yeild? For instance, if one had a quart jar of colonised wheat grains, would one get a larger yeild having a deep substrate layer with a smaller surface area, or a shallow substrate layer with a large surface area?
Is there such a thing as a substrate layer that is too deep? or too shallow? (Obviously a 1 grain thick layer would be too shallow...its just common sense I guess) but is there a point at which it is noticeably too shallow?
Or what if they divided the quart into two equal amounts and made two casings? Or four?
Basically I am just curious as to how the fungus can make the most use of the avaliable nutrients. I am assuming that a thin substrate with a large surface area would have more shrooms but they would be smaller than if there was a deep narrow casing with fewer shrooms but larger, but is there any difference in yeild as a rule?
Edited by Peace_Patrol (03/13/03 05:47 PM)
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debianlinux
Myconerd - DBK
 
Registered: 12/09/02
Posts: 8,334
Loc: Over There
Last seen: 9 months, 19 days
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 Re: Most optimal way to case one quart? (tray dimensions etc) [Re: Peace_Patrol]
#1371850 - 03/13/03 06:32 AM (22 years, 3 months ago) |
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i haven't performed any conclusive tests but IIRC the rule of thumb is a layer that is 1/4 the depth of the substrate. too thin is not really possible considering you can fruit directly off substrate with no casing. a better defnition of "too thin" would be having to constantly rehydrate the csaing since it's moisture retaining abilities would be severely limited. also, overlay is an issue. too thick is possible but requires a gross amount of casing to be deemed truly TOO THICK as in you will never ever produce fruits from it. the disadvanatges to "too thick" (as opposed to TOO THICK) are increased colonization times and increased chances of contamination. contamination probability increases both because of increased colonization time (more time for contams to get in) and the more anaerobic environment created. you seem to think that the casing provides nutrients,Quote:
Basically I am just curious as to how the fungus can make the most use of the avaliable nutrients
it shouldn't/doesn't.
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KLR
KLR
Registered: 03/04/03
Posts: 4
Loc: SPAIN
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Re: Most optimal way to case one quart? (tray dimensions etc) [Re: debianlinux]
#1373225 - 03/13/03 02:15 PM (22 years, 3 months ago) |
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These are the ones i used for casing, with horse dung, with this i've experimented a goor ratio surface/thicknes, gets the right gas exchange and propers a good moisture, so i usually use a ratio spawn/dung aprox. to 1:4, the moisture of the global mixture is reached in the pasteurization process, good dung moisture is really empiric process...so i tip that i usually used is not to comprime the Grain + Dung mix hard, softly texture gets real benefits in the speed and a great rizhomorphic colonization process..thesea are 13 cm depth and 20 cm diameter...Sup: 3.1416 x D^2/4
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" A las drogas hay que acercarse como a las fieras, sin miedo"
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Peace_Patrol
Rambling hippie
Registered: 04/22/02
Posts: 350
Loc: Electric Neverending
Last seen: 20 years, 10 months
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 Re: Most optimal way to case one quart? (tray dimensions etc) [Re: debianlinux]
#1373691 - 03/13/03 05:40 PM (22 years, 3 months ago) |
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OK debianlinux I gave you the wrong impression with the wording of my original post! I am talking about the SUBSTRATE layer of a casing....in other words when I say 'casing' I am talking about the whole thing....but in this post I am mainly asking about the best way of using one quart of colonised wheat grain, if one was to just use a standard 1-2cm thick coir / verm casing layer...sorry for the bad wording...
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debianlinux
Myconerd - DBK
Registered: 12/09/02
Posts: 8,334
Loc: Over There
Last seen: 9 months, 19 days
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Re: Most optimal way to case one quart? (tray dimensions etc) [Re: Peace_Patrol]
#1374406 - 03/14/03 01:25 AM (22 years, 3 months ago) |
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ah, i see. you have TMC? i don't have it handy (at work) and don't recall the specifics (on percocets thanks to wisdom tooth extraction). There is a chapet on substrates and it has a few paragraphs concerning substrate depth. In general, thicker is better with the caveat that there is a "too thick" condition. What makes it too thick is primarily the heat generated by the mycelium. Anaerobic conditions can be a problem but IIRC the heat factor comes into play before anaerobics does. TMC offers a chart of the amount of extra heat generated per inch. IIRC (prolly don't) the max is like 2.5" before the heat generated by the mycelium will actually hurt the mycelium. Personally, I use ~1.5"-2" substrate with .25"-.5" casing. For a given amount of spawn you will want to use surface area dimensions that optimize your substrate depth
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