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bik123
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Registered: 07/31/10
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wood ash
#19331181 - 12/26/13 11:40 PM (10 years, 1 month ago) |
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Has anyone done soaking straw in wood ash solution for oyster mushroom? How high must the pH be? And is adding bran in the solution a good idea or to be done separately?
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SkysTheLimit
A curious mind


Registered: 07/28/13
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Re: wood ash [Re: bik123]
#19331396 - 12/27/13 01:20 AM (10 years, 1 month ago) |
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I don't know about your second one but in terms of PH, wood ash is pracitcally the same as calcium carbonate (lilmestone/garden lime), they keep the ph at around 8.5 preventing it from going up and down. If you want to raise ph to the desired level you have to use hydrated lime which raises the PH to 10-11+
Hydrated lime is what you need.
btw, it seems that your seeking different methods instead of heat pasteurization. Im experimenting with fermentation in just room temperature water for a few days as suggested in Growing Gourmet and Medicinal Mushrooms book by Paul Stamets. There are other ways that I can't remember at the top of my head.
All in all, good luck!
-------------------- Hmm...
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bik123
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Ok. I thought wood ash is good enough on its own without combining with hydrated lime.
That brings me to question. Heat pasteurization is the most cost effective to me so far and so, since ive wood ash, does one recommend adding in water and stirring and then adding the straw. And with that, heating the water for pasteurization.
For i read that it increases yield.
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forrest



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Re: wood ash [Re: bik123]
#19331919 - 12/27/13 06:49 AM (10 years, 1 month ago) |
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i think the pH woodash would give, would be higher:
''Although wood ash provides little N, it can improve the base status of thesoil to which it is applied. The average pH of the wood ash was 10.6, which was not as high as that found in other studies (Someshwar, 1996).'' http://www.academia.edu/832037/Wood_ash_effects_on_soil_solution_and_nutrient_budgets_in_a_willow_bioenergy_plantation
and here they talk about a ph of 11-13: http://metla.eu/silvafennica/full/sf35/sf353355.pdf
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drake89
Mushroom Magnate



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Re: wood ash [Re: forrest]
#19332144 - 12/27/13 08:43 AM (10 years, 1 month ago) |
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one of the older threads had wood ash in the title, and then it turned into a lime fest. aloha claims higher yields with wood ash. i gave it a try last week, since i have a free supply. since i'm in a pinch right now, i started back with lime as failure is unacceptable right now. I don't have pH papers right now, so I didn't know how much to add.
Edited by drake89 (12/27/13 08:44 AM)
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RandomFX
protege


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Re: wood ash [Re: drake89]
#19456573 - 01/22/14 08:44 AM (10 years, 1 month ago) |
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I am attempting to use woodash, but with my PH tester, a Milwaukee Instruments pH600AQ, my wood ash solution, with as much wood ash to water ratio as it can absorb cold, it registers 9.6 not even close to 12 or 13. I am a newb so am not sure if this is enough or not, but instinct tells me to try for the 12 or 13...mostly because as a American I am bred to think bigger is always better probably.(IE I have no scientific research that I am done to give me a better clue.)
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t3chnobily
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aloha wood ash test included lime to achieve final PH. Just used ash first for its nutritional benefits/extreme low cost.
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ThatsWhatYouGet


Registered: 04/22/12
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Loc: Nebraska
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RandomFX
protege


Registered: 12/02/13
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it did? I was wondering about that and asked, but don't think I got a definitive answer. it does say in it's release http://www.alohaculturebank.com/mushroom-growing.pdf:
Ash, Lime and Steam Mushroom Growing Trial 200 Liter drums – filled with ~150 liters water: Drums were brought to pH 11 using 1.25 kg Hydrated Lime 4.24 kg Sifted Wood Ash
and I was wondering if it meant either the lime OR the wood ash, or both of them together in that ratio.
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RandomFX
protege


Registered: 12/02/13
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in this paper, from forrest above,http://metla.eu/silvafennica/full/sf35/sf353355.pdf on the bottom of page 355, it claims "When loose wood ash is dissolved in water,a highly alkaline solution (pH 11–13) is produced. " and then says "Wood ash generally has a good acid-neutralizing capacity and ability to supply the soil with base cations (Ca2+K+Mg2+Na+). The acid-neutralizing capacity of a wood ash mainly depends on the content of oxides, hydroxides and carbonates of Ca, Mg and K. Wood ash also contains various concentrations of readily soluble neutral salts, such as sulphates and chlorides of K and Na (Eriksson 1998)"
which could explain why mine in particular reads out at 9.6 where maybe others is actually 11-13. but I guess I will be adding lime to mine as well in the near future.
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