def/tox? soil chemistry is fucking hard

[Pagliuzz]

on another forum one guy told me its ok its normal the canopy is thicc and it is normal in this stage of flowering (day 47 on an auto). I dont want to be a dick and if someone give some time answering i can only care about what he said But im not convinced

i'm thinking is some cal/mg/k problem ph is perfect but what k def or tox or Mg?? i water with ph tap water no problems up now. biobizz lightmix soil mars hydro led

thanks for help guys

 

[mysticepipedon]

This looks more like N or K deficiency (nitrogen or potassium) to me. I would give it a little bit of balanced NPK nutrients.

 

[Pagliuzz]

well thanks now im feeding ghe trio (micro+bloom+flora) at 1/4 strength (500ppm) next feeding will try with more

 

[Pagliuzz]

so i need more help i think.
for a small recap those are 2 "autos" one real one really not day 50 i'm having issues with both and i'm using ghe nut a different ratios one for veg and 1 for bloom. at first i saw a p and/or ca def so added cal/mg on photo + a strong feeding on the flowering one and cal/mg on the veg one (i use tap water). not get better since then.

i flushed the veg one yesterday with florakleen i'm waiting for the flower one as i dont want to mess up bad.
as u can see from feeding ppm of the runoff goes down really fast. i'm using biobizz lightmix + perlite. i think that there is something wrong with the soil maybe it runned out nut or organic sostance or the ph buffering capacity.

what can i do would a "trasplant" on new (same) soil help the veg one? i dont think is a smart move for the flowering one btw so what can i do for her? i think p is lockout would add some fosforite P2O5 as top dressing beat the lockout?? i want add any cal/mg as i think it is locking out p creating calcium phosfate


help plssssssss

 

[Beachwalker]

Do a slurry test and post the results

Soil Ph Slurry Test - Step By Step With Photos

Knowing the pH of your growing medium is important from time to time. The soil pH slurry test is the easiest way of finding the true pH level of your soil based growing medium. For this you'll need: pH Meter - Cheap Amazon pH Pen - Blue Lab pH Pen - Blue Lab Soil pH Pen Cup or Container -...

www.thcfarmer.com

 

[Pagliuzz]

Done yesterday on the veg one before flushing with ph water was 7 ph bit high

Are top dressing with used coffee a nice trickto lower ph in soil or just broscience

 

[Pagliuzz]

any suggestions??

would repotting work? and can u repot during flowering or is too stressful?

 

[Pagliuzz]

since i'm currently studying "plants" i have rushed for an answer and i'll leave it here for others so

i still dont know why or how (something related to organic sostance btw) ph got up and here from books 7.5-8.5 (maybe lower i think) p+ca = calcium phosfate not solubile and locking out p and ca same way mg

i top dressed with more new soil + peat and gave a good solid watering till runoff in order to lower the ph