What's going bad with my plant ?

Jalbit

Jalbit

Member
I'm trying to figure out what is the problem with the growing of my plant.

The upper leafs are quite normal, even if they tend to bend downwards.

The old leafs start with brown spots and then they become yellow and curled on the peaks.

First I supposed a Phosphorus and Calcium deficiency due a high PH and I adjusted the PH to 5,5. Then I guessed an overwatering or an excess of nutrients.

In this Diary you can find all info about the growing state:

I alse atttached some picture that can help understand the plant state.

Can you please help me to understand what's going on ?

Thanks

J.
 

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Magnesium deficiency if it isn't calcium is my guess....or nitrogen burn...brown spot could be a fungus from lack of oxygen getting to roots or just overwatering. Just a guess
 
Thx to everyone for your answers and precious advices.
I need to say that I lowered the PH after the brown spots appear (first it was about 6.3) in case the problem was phosforus deficiency due the high PH.
Also my EC is about 1.4 and looking the pictures on the web it seems to me can be overwatering or overnutrition, cause my solution is plenty of many nutrients (maybe too much ?).
Here attached a picture of the roots. It looks ok in your opinion ?
Thx
J.
 

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Last edited:
1.4 EC can be excessive in veg. I’d check the runoff make sure it’s not running hot, 0.7-1.1 EC for veg.
I run 1.4 at peak bloom and only if they need it
 
It seems like it, true enuff. I can't remember exactly how it started, but my autos (first 4 or 5) looked like nute weirdness, and i tried everything through the grows. When I researched and decided to dim lights, most of my problems went away.
 
Damtrucker said:
It seems like it, true enuff. I can't remember exactly how it started, but my autos (first 4 or 5) looked like nute weirdness, and i tried everything through the grows. When I researched and decided to dim lights, most of my problems went away.
Click to expand...
Lots of times these gals can start a tad funky.....seems to straighten out for me, mostly.
 
Damtrucker said:
It seems like it, true enuff. I can't remember exactly how it started, but my autos (first 4 or 5) looked like nute weirdness, and i tried everything through the grows. When I researched and decided to dim lights, most of my problems went away.
Click to expand...
Damtrucker said:
It seems like it, true enuff. I can't remember exactly how it started, but my autos (first 4 or 5) looked like nute weirdness, and i tried everything through the grows. When I researched and decided to dim lights, most of my problems went away.
Click to expand...
This fruit punch auto was (last year) just put out of tent because of all that damage going on. Being in sun stopped it and she finished healthy. Part of basis for opinion.
 

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thanks again guys. After this discussion I decided to lowed my EC to 1.2 and raise a little bit the PH to 6.1...
Let see what happens ;)
I will let you know.
Thx again

PS: if anyone want to comment the roots status he's just welcome :)
 
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