Pattahabi
Well-Known Member
My apologies, you said poor advice, not terrible advice. I don't want to sound like a jerk. I know I don’t word things well. I appreciate your comment about making you think harder about a subject. This is one of the few reasons I still post on da weed boards. When people challenge your beliefs it makes you question them and do a little research. In which, I pretty much always learn something. I really don’t care if people want to pH adjust their soil. I know I won’t be anytime soon. So I don’t want to spend too much time on pH adjusting, but the thought of citric acid being added to a organic soil is thought provoking. So, without too much time I found this on logiacalgardener from Carllost:quote me correctly , i said "poor advice" meaning what i would say to a grower with a closed mind... poor guy ... lol i know your not like that...
your opinion is most respected by me . it makes me think on subjects harder my reasooning for citric acid is summed up here and is contrary to your opinion . i hope mine is based in FACT though....
Organic, carbon-based citric acid also acts as a potential food source for your beneficial microbes (they feed on carbon). This will help keep your “good” microbe population happy, while avoiding unhealthy, anaerobic conditions.
The best part of all is that citric acid really works. In fact, it does all of the “good” things that mineral acids do, but in a much gentler fashion. It also does some things that mineral acids aren’t able to.
Unlike mineral acids, Citric acid will not change your N-P-K ratio. How does this work? Well, nitric acid contains nitrogen. With Phosphoric acid, you’ve got phosphorus. And with sulfuric acid, you’re adding sulfur. By using citric acid, you’ll get its acidifying benefits, without adding additional nutrient sources, so there’s no need to rethink your N-P-Ks after applying it.
Citric acid also helps chelate essential minerals that are bound up in the soil. Applications of citric acid will take these insoluble, oxidized micronutrients and make them available for uptake and use by your turf. Citric acid is also part of the Krebs cycle, and transports micronutrients through the xylem.
wondered if any of you guys adjust the ph of your teas? if so what with?
is there any particular ph level that the act bacteria prefer?
over time all my teas head to around 8.7 then hold there on there own
ive been observing adjustments made with citric acid and phosphoric acid over the course of a week or so
ive been dropping the ph of my act to around 6.5 from its start point of 8.7 (should mention this is tea ive removed from my perpetual brew system)
with the citric after about 10mins the ph starts to rise to above 7 . in an hour or so its back in the 8 s . ive continued to do this over the course of a week or so observing the microlife within the solution . the citric acid batch seemed to hold higher numbers of microbes than my control batch , although i could not keep the ph down.
the phosphoric acid visibly reduced numbers of microlife within minutes of adding , however the ph did hold at lower numbers for the duration of my observations (again around a week). by the end of the week the batch with the phosphoric had very little life in it ,while the control batch was perfectly healthy.
Tim’s response:
Carl; I have never altered pH of ACT. I may have mentioned I've observed finished ACT with the 3 microbial groups desired at approximate 'appropriate' levels in CT ranging fro 4.5 pH all the way to 9 pH. It is likely that various species of bacteria/archaea and fungal hyphae influence the pH up or down, besides considering the water type/quality and DO2 level.
No offense but I caution you against becoming caught up in using language like 'perfectly healthy' in reference to the microbial make up of a liquid solution like CT. There are some who state things like 'I used XXX in my CT and it had lots of microbial life'. I think we can do a disservice to poeple just learning, that what we are seeking in ACT, etc. is just lots of stuff wriggling around, when lots of stuff wriggling around could actually be pathogenic. There are folks putting themselves out there as experts on compost tea who only address or illustrate the bacterial content. IMO it is always best to at least qualify as best we can what we are seeing for the sake of teaching others and attempting to turn the tide of misinformation steaming ahead. Even by stating the groups observed would be great.
So, sounds like Tim hasn’t tried altering the pH of ACT. I would like to hear Tim or Elaine’s opinion about why or why not you would alter the pH of ACT’s. I don't have the time to really dig into this atm. I'd love to hear what others come up with.
Peace,
P-