Overfeed? Maybe P deficiency

[sativalover]

Right now the PH of the run off water is around 6.5

I'm a bit confused now. After stabilize the PH, how should i know if there's a P deficiency. Is she supposed to recover if it was a PH deficiency? Or if not, i should assume that if in a few days she remains the same it's related to P?

I must be honest, i don't know how much time cannabis could take to recover from PH problem or P deficiency (right now she has 7 weeks, i suppose she will have 2 or 3 more weeks until harvest or so). Damn, growing cannabis can be really hard compared to others plants i grow at my farm but what well, i'm loving it ;D

give a light foliar feeding to help boost slight def at a start of symptoms
remember if you can see it then it has already been imbalance long enough to change plant
use a complete mix w/ secondary trace elements to boost up healing effects
foliar feeding is the quickest way to shore up def don't overdoit just alittle while you balance out your situation if in flowering stages treat lower part of plant w/ less flowers to avoid spraying bud sites as much but the lower large leaf will absorb enough to shore up def more rapidly than medium only treating
even if enough nutrients are in soil and locked up they aren't able to be used until the imbalance is fixed(could be a few days while plant is cannibalizing itself while soil is out of wack) a foliar treating skirts around this issue and will give plant enough to weather the storm better while roots aren't able to process

 

[Hugo]

depends on the tap water to start w/ if it is ok or not if it has high ppm/tds doesn't matter if you adjust ph or not it will still cause lockout
as far as the microbes they are fairly resilliant and the ph wasn't off enough to effect them much butt....
your more likely to kill them w/ too high levels of phosphorus or overwattering than ph levels
if you were adding chlorinated water this will effect the ph like your experiencing stop introducing chlorine while wattering and start flushing w/ some ph adjusted rain water or Reverse Osmossis water
if you are forced to use tap water well it can change alot depending where you are at some can be used other places it is a tragedy
when people ask about how to increase yield the first thing i ask is what kind of water are you using
if you bought a high performance indy 500 car that required racing fuel
would you give the car 89 octane and expect the same results???

Regarding the water alkalinity it doesn't state on the quality report the company emits.

I wasn't using tap water before the ph lock-out, so the soil ambient didn't had any chlorine up until now. I must say I don't find it so bad to have some chlorine, specially if it doesn't affect the microrrizas so much!

The plant is showing some Ca def so what is better? Hydrated or Dolomite lime?

Thank you again sativa and all!!

 

[dwarven]

Here's a update of the plant. I've gave foliar feed with P on the bottom leafs.

I'll do what Muddy said and use hydrated lime to rise the PH of water. I think i've used it before at the farm to decompose manure.