where to meausre nute ph

Stoneshield

Active Member
where do you measure your nute solution's ph? using organics there is a large number of undisolved matter that settles to the bottem. this stuff tends to have a higher ph than the more disolved items floating in the water. using a ph probe that reaches down to the bottem, the ph difference from bottem to top can differ as greatly as a point or more. goodtimez
 

Serapis

Well-Known Member
I hope you are not using organics in a water farm..... You are asking for trouble and expense. the first to visit will be gnats, possibly followed by brown algae and slime.
 

Stoneshield

Active Member
by water farm do u mean some kinda hydrophonics? that would be no. for soil. gnats are easy to beat. algae and slime not so much..... or at all. dont overwater kids. goodtimez
 

Stoneshield

Active Member
this is what im talking about. ive gotten a difference of over a point from one spot in the mix to the other. perhaps another organic grower could answer. using the grocheck meter by hanna (think its hanna).
 

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Smrt

Active Member
Its as simple as keeping the water well agitated, not very difficult really, or is it ?

I see alot of people swear by organics but you guys are pointing out enough bullshit problems to easily remind me why i dont grow organically.
 

Nullis

Moderator
Its as simple as keeping the water well agitated, not very difficult really, or is it ?

I see alot of people swear by organics but you guys are pointing out enough bullshit problems to easily remind me why i dont grow organically.
Lol.

I use Earth Juice, so I am familiar with the sediment that occurs after mixing a fertigation solution. (This occurs more with the Grow formulation, which is thick as all hell.)
You could aerate the stuff for a few hours (don't leave mixed fertilizer sitting for over a day), but all you really have to do is shake it up between waterings. I've never had any problems so far as this goes; pH is not my concern, and in true organics it shouldn't be yours either. pH Up will KILL your microherd, not something you want to happen.

There are other liquid, organic fertilizers that are considerably more refined.
 

Stoneshield

Active Member
if this is the biggest problem that ive had with organics i would say im a step above the rest. ive never had an issue with organics. NEVER any nute burn, micronute probs(save for late flower) and personly i like the smell of bat poo more than synthetic ferts which smell like something u should be cleaning ur toilet or stove with. ive spokene to many botinists that say that up wont kill your biosphere. the only way it will is to apply it directly to the medium. ie. lime....... keeping it agitated while taking your readings is easier said than done. though not impossible. the only thing im asking is whats more important for a Ph reading. the sediment at the bottem or the juice that floats above it. the point of using roots organics is that it is not so refined. organics is the way to go (my opinion). its the way pots been growing since the time of the dinos. so lets keep it in thoes lines. the reason i prefer organics is simply this. go buy an organic bannana and a regular one. and taste them both. not just taste but texture. im not saying that you can get more bulk from organics than conventional. but the final product will be better. just eat the bannanas and get back to me, lol. goodtimez and thx for the response u 2.
 

Nullis

Moderator
if this is the biggest problem that ive had with organics i would say im a step above the rest. ive never had an issue with organics. NEVER any nute burn, micronute probs(save for late flower) and personly i like the smell of bat poo more than synthetic ferts which smell like something u should be cleaning ur toilet or stove with. ive spokene to many botinists that say that up wont kill your biosphere. the only way it will is to apply it directly to the medium. ie. lime....... keeping it agitated while taking your readings is easier said than done. though not impossible. the only thing im asking is whats more important for a Ph reading. the sediment at the bottem or the juice that floats above it. the point of using roots organics is that it is not so refined. organics is the way to go (my opinion). its the way pots been growing since the time of the dinos. so lets keep it in thoes lines. the reason i prefer organics is simply this. go buy an organic bannana and a regular one. and taste them both. not just taste but texture. im not saying that you can get more bulk from organics than conventional. but the final product will be better. just eat the bannanas and get back to me, lol. goodtimez and thx for the response u 2.
Lime (calcium carbonate or calcium magnesium carbonate) is different than pH UP (potassium carbonate/potassium silicate) although I believe different brands could also contain sodium hydroxide or potassium hydroxide. Those ingredients could be more toxic to microlife, especially if one was using a lot.
I personally just don't feel that the pH of my fertigation mixture is that important. I only check the run-off sometimes to ensure what comes out is in the correct range. Therefore, I would say not to worry about it at all. But, keep the mixture agitated between waterings from plant to plant, so that your last plant to be watered doesn't get all the sediment/organic matter.

If it is that important to you... perhaps it would be accurate enough to take samples from the top and bottom, get readings from both samples and average them. The top is 5, the bottom is 4: your average is 4.5.
 

Stoneshield

Active Member
thx nullis. + rep for clearity. im still not ready to no mess with ph. im convince that it does make a difference. ive seen a mag def fixed from editing tthe ph .2 so im not ready to throw in the towel yet
 

Nullis

Moderator
Of course you want the pH of your soil to be in the range of 6.3 to 6.8, but it is possible to maintain the correct pH strictly by using certain amendments. Crushed oyster shell and dolomite lime are extremely important, and having coco coir in your mix also helps a lot. My fertigation water typically has a pH that is just about or perhaps even lower than 4.0, and the run-off always comes out around 6.5.
 

Stoneshield

Active Member
ive had ppl swear by thier runnoff. ive had ppl swear by no caring of ph. and i myself swear that adjusting ph + - .2 can fix certain nute problems (if not adjusting another nuts amount). ive had a botinist tell me that ur runnoff isnt exzactly correct. cant remeber the reason why though. it was rather long and scientific...... i just trailed off at that point. but everthing this dude has told me has been spot on. nullis, are you watering 4.0 in soil or soilless? goodtimez
 
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