Bhizzle28x
Member
Asked about excess nitrogen and potential clawing of my plant. Now I’m starting to see some leaf damage & not sure of the cause (if it’s PH) or something else.
help!
- Thread starter Bhizzle28x
- Start date
LEROY_JENKlNS
Member
Flush and get your pH back to normal. You have too much nitrogen. It's locking out other nutes.
Bhizzle28x
Member
My ph is @ 5.6 just fed this morning & checked my runoff ph I don’t add nutes for it to be that high in N. I don’t get it
Herb & Suds
Well-Known Member
Are you using blurple LED's?
Bhizzle28x
Member
1200 W LED got with a bloom & veg switch so I think they’re blue & purple
Bhizzle28x
Member
First time I got run off after flushing was 5.6 now it’s saying the ph is 4.8
how long until I really start getting into problems & worrying about plant health?
LeastExpectedGrower
Well-Known Member
That's really low pH... what soil and what are you watering at? Is your pH meter well calibrated? I think your real problem is less pH though and probably was more related to your EC.
hotrodharley
Well-Known Member
Is there a fan blowing on these?
Nutty sKunK
Well-Known Member
Looks fine to me.
Slight N tox is no problem in veg. Not wanted in mid/late flower though!!!
It’s just a warning sign (no more N!!)
Bhizzle28x
Member
I think it is too idk why it’s so low I use a mix of Fox farm soil & coco when I do my slurry test it’s 5.5-6.1 but when I did a test on my run off it was real low
Bhizzle28x
Member
That’s the thing I don’t give nutes it’s all soil so far so it gotta be ph right?
LeastExpectedGrower
Well-Known Member
I honestly don't know what you get with a soil/coco mix. I do know that FFOF is known for being a 'hot' soil with lots of nutrients...but I'd still try to get a handle on the pH situation. Soil grows you want in that 6-7pH range and Coco is more of a 5.8. The plants don't look terrible but do look dark.
Dank Bongula
Well-Known Member
Are you using pH down? What is your water source? When was the last time you calibrated your pH meter?
Bhizzle28x
Member
I used the coco for the perlite & better drainage it was more like 25% coco 75% FF AND no everyone I know who grows says they look great & healthy just really green.. like the plant grows a ton still it’s just the leaves curl & the dark green plus the burns I seen pop up this wk; so I’m like wtf I’m 5 wks in 1 wk until I start to enter blooming too smh
Bhizzle28x
Member
I calibrate it everytime I have both ph up & down I haven’t used any in a few wks everytime I did a slurry test I was in range of the ph.. today I tried testing the run off & was getting a real low number after I flushed it. No nutes have been added in theses 5 wks only soil & water my water ph is a consistent 6 to 6.2
Bhizzle28x
Member
No my intake gives a good enough breeze. I had an oscillating fan but I felt like they were making the plants swings too much
Bhizzle28x
Member
I don’t ph my water I flushed myeoil that’s why I had a good bit of run off water and I wanted to test it.. usually I don’t water to run off I have fabric pots & my soils mixed with coco to retain water & better drainage
myke
Well-Known Member
I must have misread,anyway, measuring runoff ph isnt a true reading of soil pH.So dont worry about it.
CheGueVapo
Well-Known Member
What kind of water you are watering? Do you know the mineral contents? Such low PH lower than 5.5 is a sign they liming agents (calmag) all have been used up.
Check this out:
Edit: dont try the2 tablespoons per pot.... if you try that, dilute it in water first and start low, maye with "teaspoons". It is pretty powerfull stuff in raising pH (dolomite).
Check this out:
Dolomite Lime
I'm growing 8 autoflowers in 2 gallon smart pots with FFOF soil. About 4 weeks in I noticed yellowing of the leaves so I tested the soil ph and it was ~5.8 in all the plants. I always ph my water to 6.5 before adding it to the soil. I flushed and flushed the plants with 6.5-6.8 water and could...
www.rollitup.org
Edit: dont try the2 tablespoons per pot.... if you try that, dilute it in water first and start low, maye with "teaspoons". It is pretty powerfull stuff in raising pH (dolomite).
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