P-K Defs?

[J189RFC]

Just wondering what this looks like to you all. I think I may be underfeeding. I know I need even more cal-mag, but other than the cal-mag.

 

[iwltfum]

That leaf looks like it's deficient in nitrogen, but I'm not sure what that dark spot is. I don't really recognize it. Maybe someone else will?

 

[DukeO]

I have a Jack x critical that had some leaves with spots like that. I gave it a little more p&k and lowered the ph to 5.5 so it would up take them better.

Plant is looking looking much better now.