Hellllllllppppppp me... Why
- Thread starter Barrybee
- Start date
Schwagg#12
Well-Known Member
Looks like light burn to me.
hotrodharley
Well-Known Member
How high is the light and what type is it?
NugHeuser
Well-Known Member
I'm gonna guess potassium deficiency since the discolored leaves arent at the very top plus I don't see signs of heat stress so I'm guessing your lights probably arent too close. Lights being too close looks similar to potassium deficiency though.
I'm with Harley, what kind of lights and how close are they?
I'm still thinking potassium deficiency though.
What are you growing in and what are you using for nutes?
I'm with Harley, what kind of lights and how close are they?
I'm still thinking potassium deficiency though.
What are you growing in and what are you using for nutes?
wonder what the light is smoking?What are your lights, how far above the canopy, what are you feeding, what is your substrate, how long into flower et cetera. The more information you give the better we can help.
Currently it looks like to much Nitrogen and a Potassium deficiency to me.
hotrodharley
Well-Known Member
Close LED can cause a potassium deficiency according to information on another thread about this earlier this summer.
What are your lights, how far above the canopy, what are you feeding, what is your substrate, how long into flower et cetera. The more information you give the better we can help.
Currently it looks like to much Nitrogen and a Potassium deficiency to me.
Schwagg#12
Well-Known Member
My thought was more of hot spots instead of too short of a canopy.
Yeah I've read that too. I'm still only using HIDs so I'm learning on that. With more information possibly you guys can help him out.
hotrodharley
Well-Known Member
Notice how many posts asking about spotting and deficiencies are using LED. Especially the blurples.
I've seen that and I'd love to see a controlled variable study for heat. I really look forward to the universities getting their research departments involved so we can start controlling variables, multivariate analysis in vivo is tough LOL but you know all about that. Good to see you this morning.
Barrybee
Active Member
Fox farm trio.....soil an my light are high enough...how or what to use to cure potassium deficiency
Jypsy Dog
Well-Known Member
Make sure it's not from Lock Out... Feed more if it's not locked out.
Bernie420
Well-Known Member
Might just be a little lite on the P and it is causing the plant to do that. To trigger the plant to take what is in that leaf to keep it alive kind of thing. Or its just a little bit of a mutant. Wouldnt worry about it much as your close to the end anyways.
Shit happens your in flower. And it isnt light burn so dont worry about that.
NugHeuser
Well-Known Member
I would advise finding a P-K booster, a nutrient that has no nitrogen, only P and K. You really dont even need extra P that I can see. The plant is heavy on nitrogen and showing a K deficiency.
Idk what the npk numbers are on your nutes but too much K will lockout K, showing a K deficiency.
Seeing that you are heavy on N tells me you've probably been feeding fairly heavily, if your feed is already extra high on K, like 4-6-10 for example, then you could have a lockout of K from too much K.
Those are my two best guesses, either a K lockout or deficiency. I would know better if I knew your runoff ppm, the exact npk amounts in your nutrients, how many ppm's you've been giving each feed and if you're feeding with every watering or how often if not
Bernie420
Well-Known Member
Whats run off ppm going to tell you
NugHeuser
Well-Known Member
If there's nute build up in the soil
Bernie420
Well-Known Member
well of course there is if they had been feeding it but lets say its 2800ppm now what. and thats probably a low number. idk I never checked ppm in my runoff.
I just dont see how knowing what the ppm run off will tell you. Unless your flushing and just want to know for the fun off it, not much more i can think of.