carnalrekt
New member
Hello All,
Wood ash is known as a good source of potash and other minerals but also needs to be used sparingly to to its high ph.
It occurred to me a while ago to neutralize it before use to avoid any issues.
However there is almost no info on the net about the usefulness of this, except for this little writeup i found on another forum :
"I thought I would share a simple solution to the use of wood ash as a fertilizer.
I found, like many, that wood ash+ water yields a very caustic solution, ph 9 in fact on my measurements. So I bought some cheap vinegar, and added it to quench the caustic solution.
The results have been remarkable, one trailing rose is producing nearly 2 kilos a week of dead heads, and requires nearly daily attention to remove the dead flowers."
"I have found that 1 litre of white wine vinegar per 2kg of wood ash is approximately correct. I use pH strips, and just bring it back to ~7ish, dilute with 150 litres of water. Stir. Allow 5-6hrs to settle. Stir again and use."
https://www.houzz.com/discussions/3146705/wood-ash-add-vinegar
Potassium, and calcium acetates are a created as a result of the acid base reaction and are both bio-available and easily taken up by plants.
I do believe this simple acid base reaction before using wood ash will improve the usability of it in the cannabis growing scene...though i might be wrong.
I am in the middle of my first organic indoor 100w microgrow and i do not have sufficient experience to tell the difference in yield. Nor the ability to do any serious testing at the moment.
What I am hoping to do though is find the upper limit of use of this vinaigrette So im looking for some feedback from some old hands....
How much do you think i should use? The recipe above roughly adds up to 1:50 vinaigrette to water ratio. Should i start here and work my way up in concentration?
How often should i use it? Every watering? or alternate?
What happens if i have some kind of nutrient or salt overload? Should i flush with water?
Would anybody else with a larger grow like to contribute to this train of thought and the knowledge pool by doing a side by side with a SOG or similar? Either swapping out their main potash source and or adding too it, playing around with concentration etc....
Thanks all
Wood ash is known as a good source of potash and other minerals but also needs to be used sparingly to to its high ph.
It occurred to me a while ago to neutralize it before use to avoid any issues.
However there is almost no info on the net about the usefulness of this, except for this little writeup i found on another forum :
"I thought I would share a simple solution to the use of wood ash as a fertilizer.
I found, like many, that wood ash+ water yields a very caustic solution, ph 9 in fact on my measurements. So I bought some cheap vinegar, and added it to quench the caustic solution.
The results have been remarkable, one trailing rose is producing nearly 2 kilos a week of dead heads, and requires nearly daily attention to remove the dead flowers."
"I have found that 1 litre of white wine vinegar per 2kg of wood ash is approximately correct. I use pH strips, and just bring it back to ~7ish, dilute with 150 litres of water. Stir. Allow 5-6hrs to settle. Stir again and use."
https://www.houzz.com/discussions/3146705/wood-ash-add-vinegar
Potassium, and calcium acetates are a created as a result of the acid base reaction and are both bio-available and easily taken up by plants.
I do believe this simple acid base reaction before using wood ash will improve the usability of it in the cannabis growing scene...though i might be wrong.
I am in the middle of my first organic indoor 100w microgrow and i do not have sufficient experience to tell the difference in yield. Nor the ability to do any serious testing at the moment.
What I am hoping to do though is find the upper limit of use of this vinaigrette So im looking for some feedback from some old hands....
How much do you think i should use? The recipe above roughly adds up to 1:50 vinaigrette to water ratio. Should i start here and work my way up in concentration?
How often should i use it? Every watering? or alternate?
What happens if i have some kind of nutrient or salt overload? Should i flush with water?
Would anybody else with a larger grow like to contribute to this train of thought and the knowledge pool by doing a side by side with a SOG or similar? Either swapping out their main potash source and or adding too it, playing around with concentration etc....
Thanks all