Deficiency or OverFert?

[DabblerOfTree]

So my girls are about a little under three months right now and allot of their fan leaves are turning yellow at the tips and creeping up the leaf itself, shortly dieing after it turns yellow. They are in fox farms soil and im using some grow big so im kinda leaning toward over fertilization but i just wanted to get some other opinions from those more experienced. Hopefully the pictures I'm trying to post will show up for you to see some of the damage on the plants.

Dabbler.

 

[PrairiePoet]

To me, it doesn't look like nut burn. What is your pH?

 

[Captain Kronic]

To me, it doesn't look like nut burn.

I really hate it when I get nut burn... ouch!

The way it looks like it's moving from the bottom up and looks an awful lot like a nitro deficiency.
I don't think it's nute burn as Prairie already said.
How often are you feeding w/the Grow Big? What type of water, tap, well, RO?

What is you feeding schedule and how much when you do. You could be underfeeding... I do think it's an N def... peace out!

 

[billmoe93]

We need more info to give you a better answer.

Outdoor or Indoor? The top looks like it has touched a light.
Temp/Humidity? If available. The healthy leaves look heat stressed.
Do you know the Ph? If not do you have dolomite lime in your soil mix?

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Check that out if you haven't already.

If you dont believe it is a N deficiency, my guess from the pics is that it is under watered. How often are you watering it? If the temps rose in your area, are you taking that into account when deciding how often to water your plants?

 

[MrPink]

Good addvice.

 

[Hogdady]

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