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Invisibleohmatic
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Peat / Vermiculite casing layer - PH adjustment - picture added !
    #3341492 - 11/10/04 02:28 PM (12 years, 11 months ago)

hey!

since i got some nearly 100% straw that i want to case,
i wonder about the PH of the peat / verm mix i am planning to use as a casing layer.

the soil i got myself consists of 98% little to highly broken down highmoor peat and 2% sand,
it indicates the factors H2-H8.
also, the Ph laevel is indicated, it is between 5 and 6.5.

now, since i got the advice to look for a soil that consists mailnly of peat,
i grabbed this one and am now planning to mit it with vermiculite in a
60/40 or even 70/30 rate,
since im quite short on verm.

thinking about this quote from rodger rabbit @ mycotopia
Quote:

A good initial ph for casing material is 8.5



i wonder how i should ajust the ph of the casing mix.

i know about Oyster Shells but they arent avaible here i guess,
but what about Chalk? i think Chalk also does the job and after all i could
get that for sure!

well, so, how to do the deal :smile:
peace ohm :mushroom2:

*edit*
am i right that the mixed in amount of verm is also going to influence the
PH of the casing mix?
if so, by increasing or lowering it?

*edit*
i just dug up this post by anno:
Quote:


First, Peat is acidic, it has a pH from 3-4.

You want to raise its pH, make it neutral=7.



given that my peat ranges between 5->6.5 im narly settled,
need to find out how vermiculite affects the ph!

Search Function RULES ! :laugh:

*edit2*
i dug up some more
Quote:


There are several common types of lime available for use, though care should be exercised with all of the products. Lime is caustic and a skin and eye irritant and can be dangerous if misused. If you choose to use such products, carefully read and follow all manufacturer directions exactly. The major types of lime products include:
Hydrated Lime: fast acting, but not long lasting. It is very effective to produce a fast change in pH level. It is also the "strongest" form of lime generally available, and you must follow all manufacturer precautions, since your skin and eyes can be easily irritated or burned if the product is misused.

Ground Limestone: a naturally occurring type of limestone that has been ground to a fine powder. How quickly it will act to modify pH and how long it will persist depends on how finely it was ground.

Generally, ground limestone is weaker than hydrated lime, needing about 30% more to raise the pH by the same amount. It has the advantage, however, of usually being significantly cheaper than the hydrated lime, and usually works more slowly and lasts much longer.

Mixed Lime: usually sold under a brand name. Most brands contain a variety of particle sizes to provide some immediate benefits, as well as a longer persistence. (this is often referred to as "time released" lime).




so there are the ways to adjust it, very well.
i guess i will get myself some indicator paper and simply experiment,
is it really worth the trouble (its a boring and annoying walk to get the indocator)
or am i overkilling on this and should use the peat/verm mix and be fine?

*mostly final edit*
well, ill try to dig up calcium carbonate since i was advised to use that for best results,
maaan talk about complicated :wink:

*edit*
after i gotmyself ph indicator paper and squeezed the soilmix through a coffe filter,
this is the best reading i could get.


the green (2nd from left) matches the one from number 7 but besides that,
everything is way off as u can see since even the filtered water was
very dark.
i KNOW that the ph must be around 5-7 but i dont know which one it is..
any ideas mates?
peace ohm :mushroom2:


--------------------
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Edited by ohmatic (11/11/04 09:40 AM)


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Invisiblederx
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Re: Peat / Vermiculite casing layer - PH adjustment [Re: ohmatic]
    #3341502 - 11/10/04 02:32 PM (12 years, 11 months ago)

you want CaCO3 which is found in many products like chalk and oyster shells. Got any spare coral reefs around? Those work too


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Re: Peat / Vermiculite casing layer - PH adjustment [Re: derx]
    #3344702 - 11/11/04 01:55 AM (12 years, 11 months ago)

*bumbp*


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OfflineIGnosticAbhorI
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Re: Peat / Vermiculite casing layer - PH adjustment [Re: ohmatic]
    #3344719 - 11/11/04 02:00 AM (12 years, 11 months ago)

lol, i just learned a bit, heh thankx? GL


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OfflineQavl
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Re: Peat / Vermiculite casing layer - PH adjustment [Re: IGnosticAbhorI]
    #3344752 - 11/11/04 02:09 AM (12 years, 11 months ago)

Watch for magnesium content in your pH buffering agent. Lots of granulated/powdered limestones have high Mg content, which shrooms don't like.

If you're doing a 50/50+ mix, try to use straight peat moss instead of a potting soil that's peat-based.

No luck finding oyster shells, you can buy some calcium from any pharmacy, grind it in a mortar and pestle (would hate to see what those suckers could do to a coffee grinder!) and sprinkle it in with your casing mix.

That'll work as a long time pH buffer for later flushes, if your pH is bad now, try to find some hydrated lime.

IMHO, ditch the peat entirely. Coir is *fantastic* by itself or with verm added. :smile:


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Re: Peat / Vermiculite casing layer - PH adjustment [Re: Qavl]
    #3344776 - 11/11/04 02:13 AM (12 years, 11 months ago)

Quote:

Qavl said:
If you're doing a 50/50+ mix, try to use straight peat moss instead of a potting soil that's peat-based. 




i was advised to do so by a very experienced guy that i do not doubt he would
advise me anything wrong.
besides that, given that my soil consists of 98% peat and 2% sand,
well, that could be considered pure peat :wink:

well ill give a shot at calcium carbonate!
peace ohm :mushroom2:


--------------------
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Re: Peat / Vermiculite casing layer - PH adjustment [Re: Qavl]
    #3344912 - 11/11/04 02:45 AM (12 years, 11 months ago)

Quote:

Qavl said:
Watch for magnesium content in your pH buffering agent. Lots of granulated/powdered limestones have high Mg content, which shrooms don't like.

If you're doing a 50/50+ mix, try to use straight peat moss instead of a potting soil that's peat-based.

No luck finding oyster shells, you can buy some calcium from any pharmacy, grind it in a mortar and pestle (would hate to see what those suckers could do to a coffee grinder!) and sprinkle it in with your casing mix.

That'll work as a long time pH buffer for later flushes, if your pH is bad now, try to find some hydrated lime.

IMHO, ditch the peat entirely. Coir is *fantastic* by itself or with verm added. :smile:


All ground dolomite limestone is going to have magnesium in it....

Is magnesium carbonate something to avoid? I thought that carbonates are locked up and not readily available..


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Re: Peat / Vermiculite casing layer - PH adjustment [Re: Qavl]
    #3344934 - 11/11/04 02:52 AM (12 years, 11 months ago)

>"ditch the peat entirely. Coir is *fantastic* by itself"

Coir drys alot faster than peat(way too fast).
peat rules IME
peat/verm is even better.

Peat is superior to coir at harvest time also.
With peat it seems like the mushrooms just fall off into my hand.


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InvisibleSam1912
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Re: Peat / Vermiculite casing layer - PH adjustment [Re: SubGen1us]
    #3344939 - 11/11/04 02:52 AM (12 years, 11 months ago)

So, keep the humidity higher. :wink:

Sam


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Re: Peat / Vermiculite casing layer - PH adjustment [Re: Sam1912]
    #3344943 - 11/11/04 02:54 AM (12 years, 11 months ago)

i already keep it way above what im supposed to.
any higher and ill have a bunch of fuzzballs instead of mushrooms.


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Re: Peat / Vermiculite casing layer - PH adjustment [Re: SubGen1us]
    #3344946 - 11/11/04 02:55 AM (12 years, 11 months ago)

I also get peat for 50 cents for a 40 pound bag.
that blows coir away.


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Re: Peat / Vermiculite casing layer - PH adjustment [Re: SubGen1us]
    #3344949 - 11/11/04 02:56 AM (12 years, 11 months ago)

for cubies?

99% RH 75F, PMP, 60/40 casing


That's a 11" long container.

Maybe if you used coir, you don't have to worry about fuzz balls. :wink:

Sam


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Re: Peat / Vermiculite casing layer - PH adjustment [Re: Sam1912]
    #3344975 - 11/11/04 03:04 AM (12 years, 11 months ago)

Quote:

Sam1912 said:
for cubies?

99% RH 75F, PMP, 60/40 casing


That's a 11" long container.

Maybe if you used coir, you don't have to worry about fuzz balls. :wink:

Sam




60/40 coir/verm or peat/verm?
peace ohm :mushroom2:


--------------------
:penis: MONOTUB tek :sun: HEATBOMB tek :penis:

RIP #cultivation! ....can't associate? well FUCK U !


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Re: Peat / Vermiculite casing layer - PH adjustment [Re: Sam1912]
    #3344977 - 11/11/04 03:04 AM (12 years, 11 months ago)

the fuzz would be caused from too much moisture in the air.
the casing would have nothing to do with what im talking about.


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InvisibleSam1912
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Re: Peat / Vermiculite casing layer - PH adjustment [Re: SubGen1us]
    #3344981 - 11/11/04 03:06 AM (12 years, 11 months ago)

oh, you mean fuzz on the mushroom? lol. that makes sense, though, I don't have that problem except those really early bloomers sitting in there for long time.

Sam


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Offlinescatmanrav
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Re: Peat / Vermiculite casing layer - PH adjustment [Re: Sam1912]
    #3345297 - 11/11/04 04:49 AM (12 years, 11 months ago)

I dont mind fuzz..theres no ill effect of it.

I havnt tried it but I do feel peat/verm is probably superior to coir/verm if done correctly but its another step that I dont feel like dealing with. I tend to trust who I've heard this from though so I can imagine it is. However I think if you can do what you do well enough using coir/verm, why not? I should try peat/verm..I've been having trouble keeping my humidity constant throughout my entire chamber and it dries out my casings to quickly.


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Re: Peat / Vermiculite casing layer - PH adjustment [Re: scatmanrav]
    #3390151 - 11/20/04 07:26 PM (12 years, 10 months ago)

I just made 4 casings using (Peat, Verm, & Mush.Compost) (casings are mex. stroph on (2 wbs) and (2 popcorn) ) I put a shitload more verm. than both the peat and the compost, overall my mix looks really airy and fluffy and just looked right to me... based on previous casings... anyways just wondering if I didn't add the lime or calcium into my casing yet... what should I do? get some asap and try to mix it in before major colonization takes place or just let it go and see what happens and learn from my mistakes? Couldn't find Coir anywhere... checked Lowes, HomeDepot, and Petsmart... wtf! Oh well didn't know that Peat needed to be buffered guess thats what I get for not doing "enough" research! Thanks again!

Fishbutt


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Offlinedjred
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Re: Peat / Vermiculite casing layer - PH adjustment [Re: fishbutt]
    #3390450 - 11/20/04 09:08 PM (12 years, 10 months ago)

well i bought some bed a beast small block for 5 bones.thought that everyone used it.. peat moss is another way to go about making your casing layer? how does this 50/50 60/40 numbers work? say i have a small block of bed a beast 7 to 8 liters. a bag of verm 8 dry quarts. how would i mix this all together so i could put it in a container? i don't seem to understand the ratio thing.
\
what is the correct ratio for verm bed a beast?and do i need to up the pH level any?

replying to last post.coir is also bed a beast?


Edited by djred (11/20/04 09:18 PM)


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Offlinediscman1
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Re: Peat / Vermiculite casing layer - PH adjustment [Re: djred]
    #3391047 - 11/20/04 11:57 PM (12 years, 10 months ago)

Just eyeball it, it's not really a science. 70coir/30 verm is good, too. So there is some leeway.


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Re: Peat / Vermiculite casing layer - PH adjustment [Re: discman1]
    #3391106 - 11/21/04 12:09 AM (12 years, 10 months ago)

ok diskman im going to just break up the block and add a little verm at a time till it looks like a 70/30 mix.. maybe i should do some math while at it i will figure it out..


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