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Testing soil PH

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Greenfingers
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Re: Testing soil PH

Post by Greenfingers »

MafooFarms wrote:
Sat Mar 19, 2022 4:29 pm
Ya GF I use general hydroponics acid to lower my pH. The water out of my tap is around 8.5-8.7 as well. Crazy alkaline.

I seen people use lemon juice, white vinegar, or even powdered citric acid if you dont have any string hydro acid around.

Just use your pH pen. You know. Add a mL, stir, wait 60 seconds, dunk the meter in.

Also i dont know if this is true or not, but I seem to remember being taught that the pH meter should be moved about to get an accurate reading. Like dont just dunk it in still water. Stir it about a bit.

Good luck mate
:thanks: ive never bothered with the ph before, we live and learn :wave:
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Re: Testing soil PH

Post by camkush »

Do you let the water sit or just straight from tap to soil? Ive never phd soil at all as it can fuck with the microbes but i see you are having issues unfortunately
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Re: Testing soil PH

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camkush wrote:
Sat Mar 19, 2022 5:32 pm
Do you let the water sit or just straight from tap to soil? Ive never phd soil at all as it can fuck with the microbes but i see you are having issues unfortunately
my water comes out the tap and sits in a 25ltr tub with a little heat and an air stone for at least 24hrs before i use it.
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Re: Testing soil PH

Post by camkush »

What soil brand is it? What are you feeding her? She aint that mad but the tips damn sure curling and the splotches are my biggest concern for yah

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Re: Testing soil PH

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I’ve just tested the water with feed in and it’s got a ph of 6 .4
So do I just need to adjust when I’m only feeding water ? 🥸
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Re: Testing soil PH

Post by camkush »

Check out manganese deficiency.. not super common and often misdiagnosed. Whats the iron levels in the feed you use?
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Greenfingers (Sat Mar 19, 2022 8:08 pm)

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Re: Testing soil PH

Post by Greenfingers »

camkush wrote:
Sat Mar 19, 2022 6:34 pm
Check out manganese deficiency.. not super common and often misdiagnosed. Whats the iron levels in the feed you use?
Total Nitrogen 3.0%

Phosphorous Pentoxide (P2O5) 5.0 (2.2%P)

Phosphorous Pentoxide (P2O5) soluble in water 5.0(2.2%P)

Potassium oxide (K2O) 4.0 (3.3%K)

Iron (Fe) chelated by EDTA soluble in water 0.03%

hope that helps mate and thanks
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Re: Testing soil PH

Post by camkush »

Before 100% going gun hoe and listening to me id wait and hear from some others. But im leaning towards it being too alkaline for iron uptake or back to the manganese issue. Id foliar spray with something high in Iron to start, but there again if its manganese higher iron is part of the issue

So im torn.. where is @GMO
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Re: Testing soil PH

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Greenfingers (Sun Mar 20, 2022 6:23 pm)
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Re: Testing soil PH

Post by Guest »

Yep, has to be higher 7 for good iron uptake. 7 8 and beyond it tapers to almost nothing.

This is for soil though!
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