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-- hey bud, that's not Zn defc. , wrong symptoms, wrong area of the plant.. Zn is immobile within the plant, meaning it can't be taken from established tissue and translocated to new growth, so when it's deficient, it hits newest grwoth first.. check here to see what I mean:
https://www.autoflower.org/threads/...panded-to-include-other-issues-as-well.43164/
... well, what you put in for pH doesn't mean the medium takes that pH as well,..too many influencing factors,... checking direct run-off, especially collected from a unclean saucer will not give accurate pH at all! it might give crude acidic/alkaline estimations, but for treatment purposes, it's not wise to base your fix on it... For in-soil readings, I recommend the Accurate 8 soil pH probe... otherwise, the alternative is a modified run-off and calculation test... this one at least addresses some of the many sources of measurement error inherent with run-off testing--
https://www.autoflower.org/threads/...-for-run-off-testing-and-ph-estimation.41733/
... peat is naturally acidic, and
soils are dubious as mentioned,.. so, I'm betting it's a bit too acidic in there... what's you water source? do you know it's hardness, ppms?[/QUOTE
What would be the best way to adjust the ph back to normal parameters...?
(ie: 6.5 range)...I haven't had a chance to try the ph run off test you had explained...but, assuming I'm low in the 5.8 to 6 range or even lower...how would you go about correcting it? I've read about flushing with plain water..
Ph adjusted water...ph adjusted 1/4 strength nutes...a dolomite/water buffering solution...? There are alot of opinions on the subject... Thanks
