Nitrogen deficiency?

[The Stoned Jester]

Heya all.

From what I can tell getting a nitrogen deficiency problem, but I'm not too sure why.



This girl is thirsty ... drinking about 1.5l of water a day.

Im currently feeding her 4ml Canna Vega Bio (3-1-5-1) + 2ml Amgrow Nitrosol (12-2-13-7) and have started 2ml PK 13/14 (0-6-11-0)

that should be HEAPS of juice, as you can see on other pictures there is only the smallest tip burn and the buds are looking nice and fat already so it's taking it quite well.

any idea's or is this just a natural thing?



 

[Matanuska Thunder]

​inclined to think it is not an N deficiency
the leaves look like they are kinda thin too(?)
on the other side of the leaves... any white or black dots (use a loop to check)??? or any signs of any bugs in your grow (anything)

 

new growth ok?

random placement of the yellowing leaves or all on the same level of the plant?

[The Stoned Jester]

Had a closer look ... No bugs no white/black spots & it only seems to be affecting the lower canopy leaves where not much light is getting though, and new growth is fine.

 

I'm guessing because the lower leaves are not getting any light, the plant is using them up for nutrients instead of keeping them alive for photosynthesis.

[T.WilyRR.]

Where the leaves have come from is what counts. If only lower leaves then n def b ut not much you can do about it it is past tense usually. Reasons for nitrogen deficiency lockout or just not enough Nitrogen is possible.