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Offlinedebianlinux
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Compressing straw... why?
    #2869982 - 07/08/04 09:06 PM (12 years, 5 months ago)

Every tek that i've ever read that involves straw recommends compressing the straw as much as possible. I have never experimented with any methods except using my body weight or whatever to provide maximum compression.

I just thumbed through GGMM and found no satisfactory information. I performed a few googles only to find many straw texts that say to compress but not why.



Here are some of my musings:

I know that the mycelia colonises fastest under high co2 conditions (not anaerobic tho, mind you). Also, a mass of straw would have a considerable number of gaps of various sizes throughout. Also, in case you haven't noticed, straw is very springy and tends to stick out everywhere. Both the gaps and the stickouts would be more vulnerable to contamination as it would present an area that the mycelium cannot occupy entirely.

Anybody have any input on the subject?


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OfflineBaby_Hitler
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Re: Compressing straw... why? [Re: debianlinux]
    #2877532 - 07/11/04 10:06 AM (12 years, 4 months ago)

My guess is that it speeds colonization because the mycelium doesn't have to reach across empty space to get to uncolonized substrate.

I think it would also use up more nutrients because of all the extra mycelium needed to colonize the substrate, resulting in less fruits.


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InvisibleATWAR
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Re: Compressing straw... why? [Re: debianlinux]
    #2880297 - 07/12/04 01:53 AM (12 years, 4 months ago)

Reduces air space. You can fit more substrate into a given space, thus yield is increased per cubic foot. That, combined with what BH said about mycelium expanding energy to fill the gaps. Nutrients are wasted on vegetative growth.

And your observations concur with my own. Pieces sticking out will take longer to colonize, usually beyond the "window" that is acceptable. You would also like to have a semi-anaerobic core as you speak, but you would need to shred the straw very fine, and compress very hard before you reduced the air exchange to that of problematic levels. The lowered air exchange also slows the rate of evaporation from the core.


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InvisibleFungushungry
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Re: Compressing straw... why? [Re: ATWAR]
    #2880360 - 07/12/04 02:09 AM (12 years, 4 months ago)

Good Info :thumpup:


--------------------
"Early man walked away
As modernman took control
There mind's weren't all the same
And to conquer was their goal
So he built his great empire
And he slaughtered his own kind
He died a confused man
And killed himself in his own mind"


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Offlinemycoguy
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Re: Compressing straw... why? [Re: debianlinux]
    #2880444 - 07/12/04 02:35 AM (12 years, 4 months ago)

ya, but as I'm learning....don't compress it, if you've added in compost, shit, or castings. just my experience. take it or leave it.


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Offlinedebianlinux
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Re: Compressing straw... why? [Re: ATWAR]
    #2881970 - 07/12/04 01:57 PM (12 years, 4 months ago)

Quote:

ATWAR said:
...like to have a semi-anaerobic core as you speak, but you would need to shred the straw very fine, and compress very hard before you reduced the air exchange to that of problematic levels...




I have achieved this very effect. using a weedeater tends to turn a percentage of my straw into dust. i have learned to avoid putting said dust into my substrate mix.


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