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Offlinellopez00
Stranger
Registered: 08/07/05
Posts: 188
Last seen: 17 years, 9 months
Re-Casing Double Tubs
    #5378752 - 03/08/06 07:02 PM (17 years, 10 months ago)

I have noticed that after 2 or 3 flushes, the yield drops like fuckin' crazy for me with cubies in a double tub. I'm talking like 6 or 7 decent mushrooms and thats it. I decided to scrape off the obviously spent casings in my tubs and re-case them. Have you guys ever done this before? If so, what did you do? Here are 3 things I'd like to try to see if it will work.

1) Completely scrape off the casing and apply a new casing, then put back into incubation room until time for fruiting again.

2) Completely scrape off the casing, rehydrate the substrate, let it colonize, then apply a new casing layer.

3) Remove all mushrooms including aborts, patch the existing casing if there aren't contams on it, and put back into incubation room to let the casing re-colonize again so that the flushes will be greater.

What would you do? Just trying to save a little time, otherwise I'd just start over.


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InvisibleLiquidkick
H2O
Registered: 05/03/02
Posts: 2,635
Re: Re-Casing Double Tubs [Re: llopez00] * 1
    #5378789 - 03/08/06 07:08 PM (17 years, 10 months ago)

i think the nutes are basically used up after the 3rd.


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Invisibletiny_rabid_birds
Nocturnal
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Registered: 11/08/05
Posts: 15,653
Loc: estados unidos
Re: Re-Casing Double Tubs [Re: llopez00]
    #5378794 - 03/08/06 07:09 PM (17 years, 10 months ago)

Well when you recase you make the myc go from the fruiting phase back to the colonization phase, and you're pretty much just going to confuse the mycelium and waste its energy and time (which leaves it more susceptible to contamination).

Plus, it's like Liquid said, the substrate is just about spent anyways.


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Offlinedebianlinux
Myconerd - DBK
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Registered: 12/09/02
Posts: 8,334
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Re: Re-Casing Double Tubs [Re: llopez00]
    #5378799 - 03/08/06 07:10 PM (17 years, 10 months ago)

I haven't paid much attention to the cultivation world lately so maybe i missed the part where everybody started getting more than 2-3 good flushes out of their projects. I'm used to scrapping everything and starting fresh after flush #3 with no regard to what future flushes may have produced. IMO, dicking around with an old casing is just spending man hours on something that is not going to produce as well as a fresh casing and is also inviting contams.

There are several reasons for the reduced fruitings in later flushes.
The lesser reasons being dehydration, spent nutrients and encroaching contams. However, I'm fairly certain the largest factor and probably the hardest to counteract is the inevitable acidifying of the casing layer and substrate that occurs as a by product of mycelial metabolism.

Applying a fresh casing sounds like a viable way to raise the pH as does initially using buffers such as crushed oyster shell or lime in both the casing and the substrate.

Good luck.


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Invisiblemusher_420
Stranger

Registered: 08/01/05
Posts: 2,691
Re: Re-Casing Double Tubs [Re: llopez00]
    #5378805 - 03/08/06 07:11 PM (17 years, 10 months ago)

What kind of substrate are you using? I find this makes a huge difference in how many flushes will be produced.

Also are you using a long term Ph buffer?

I have tried re-casing with varying levels of thickness in my layer. And re-incubating. The trays did as well or just slightly better then the other trays I didn't re-incubate. IMO not worth the time to re-incuabate.

I have found the best thing to do after a harvest is to completely remove all mushrooms and aborts. Apply a VERY thin layer of casing mix to the areas in the casing that have been disrupted during harvest. Then misting with a fine mist until the casing layer glistens ala Hyphea's pinning strategy.

When I put them back into the FC I bump up the RH to the high 90's until I see new pins form then bump it back down.

To apply this technique to a double tub simply remove the polyfil from one of your holes and regularly mist the insides of the tub.


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Edited by musher_420 (03/08/06 07:12 PM)


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Offlinehyphae
born to grow
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Registered: 12/13/02
Posts: 6,228
Loc: the rain forests
Last seen: 12 years, 8 months
Trusted Cultivator
Re: Re-Casing Double Tubs [Re: musher_420]
    #5378898 - 03/08/06 07:30 PM (17 years, 10 months ago)

FYI the casing layer is not spent, because there should not be any nutes in it ever! What gets spent is your substrate bro. Read my pinning strategy to clear any confusion you may have. GL


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Getting the most out of your casings!, A pinning strategy.
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"We all have priorities. I used a closet once setup a nice little lab trouble was all the shit that was in there ended up in the bedroom that pissed off the GF then I ended up dumping her as she was getting in the way of my sterile culture technique! Ya I got priorities too!!!"


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Offlinellopez00
Stranger
Registered: 08/07/05
Posts: 188
Last seen: 17 years, 9 months
Re: Re-Casing Double Tubs [Re: hyphae]
    #5379056 - 03/08/06 08:06 PM (17 years, 10 months ago)

Thanks guys, I think I'll just start over because they have been going for about a month now. I've been using horse/cow shit and colonized quart jars of WBS and thats it. The substrate depth is 5" and the casing thickness is 3/4". I think the reason I've been seeing such a reduction in yield is because harvesting the mushrooms disturbs the colonized casing layer so much, making me replace or patch if you will, the colonized casing with uncolonized casing material. The patched areas don't colonize and there are never mushrooms growing from those areas oce they've been patched. Oh well, I'll figure something out.


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