Yellowing leafs
- Thread starter diablo42
- Start date
MickFoster
Well-Known Member
Why is this thread any different than the one you started yesterday?
https://www.rollitup.org/t/yellow-leafs.1066339/post-16661458
https://www.rollitup.org/t/yellow-leafs.1066339/post-16661458
Because there were 50 post that had nothing to do with what I asked
MickFoster
Well-Known Member
That's right..........it got hijacked by trolls........sorry.
Budzbuddha
Well-Known Member
Potassium deficiency.
Yellowing along serrated edges and “ tip burn “ ……. This deficiency tends to mimic traditional “ nute burn but the edge yellowing is the common symptom.
Causes can range from ph issue / stress and or salt buildup in medium.
Depending on your medium there are some easy fixes …. However I would get on it as soon as possible.
Yellowing along serrated edges and “ tip burn “ ……. This deficiency tends to mimic traditional “ nute burn but the edge yellowing is the common symptom.
Causes can range from ph issue / stress and or salt buildup in medium.
Depending on your medium there are some easy fixes …. However I would get on it as soon as possible.
HydroKid239
Well-Known Member
I'm guessing since it's getting a full dose of AN.. it may be getting too dry in between causing that excess buildup in the soil. Adding more will lock it out if given to much right? or am I off maybe? I figure the answer to this may contribute to what the OP is trying to achieve. Makes for some nice preventative measures later on.
Budzbuddha
Well-Known Member
Not sure what substrate he is running …. Thinking 6.0 ( if in soil ) is pretty much where to look.
Soil is correct
Budzbuddha
Well-Known Member
IMO I would still target the midpoint of acceptable PH ( soil ) @6.5 - to allow for drift.
Even if you target 6.0 - it possible it dropped to a more acidic range .
Take that “ Ph Perfect “ nonsense with a grain of salt ….
Autoflowers need very little as far as feed. Multibottle runs can often overwhelm them.
Most good bagged soil can run an auto for weeks upfront ….. all by itself.
This way the auto acclimates to medium without EXCESS.
You can even Top dress more original bagged mix INSTEAD of any bottled supplements.
Think about it …. You are only trying to keep it fed for approximately 90 + days.
Even if you target 6.0 - it possible it dropped to a more acidic range .
Take that “ Ph Perfect “ nonsense with a grain of salt ….
Autoflowers need very little as far as feed. Multibottle runs can often overwhelm them.
Most good bagged soil can run an auto for weeks upfront ….. all by itself.
This way the auto acclimates to medium without EXCESS.
You can even Top dress more original bagged mix INSTEAD of any bottled supplements.
Think about it …. You are only trying to keep it fed for approximately 90 + days.
mtnman2016
Well-Known Member
Looks like 2 issues. Manganese and Potassium. If PH were off, I would not expect to see the brown spots, they would go yellow then burn up, not spotty. But as Budzbuddha mentioned, the PH should be near 6.5, I have always had good results between 6.5-6.7 using Fox Farms soils.
Adding Cal-Mag won't hurt anything, especially around 2-3 ml/gal. Up your flower nutes, PH and you should be fine.
Adding Cal-Mag won't hurt anything, especially around 2-3 ml/gal. Up your flower nutes, PH and you should be fine.
Don’t have anything to test EC
it's a good idea to have a pen . even a cheap one . if not a flush WITH NUTRIENT will at least solve any issues. whether its high ec , missing minerals or whatever a good flush with a complete nutrient solution will solve most issues . push out old unbalanced solution and replace it with available minerals
not a great kit. hard to read . maybe that is kn the 6's?
Yeah looks between 6-7
your runoff should be about 1350.ppm .2500 is way to high .