sun To much N or to litle sun?

pwb · Jul 12, 2015

Hi, some of my leaves turns yellow. Its almost only bottom leaves that do it.
https://www.dropbox.com/s/p1qcwt3545qnksp/IMAG0510.jpg?dl=0
Another picrure
https://www.dropbox.com/s/jipze672kpjnpol/IMAG0511.jpg?dl=0

Weed · Jul 12, 2015

Looks like they need fertilized.

pwb · Jul 12, 2015

This plant had 3-4 leaves like that.
https://www.dropbox.com/s/dtdjz85jmer4lxd/IMAG0515.jpg?dl=0

Geonerd · Jul 12, 2015

Heckle said:
Looks like they need fertilized.

What's with this New Grammar crap?

Weed · Jul 12, 2015

seems like they are just getting shaded out once i see the whole plant

probably just keep doing whatever youre doing, whole plant looks nice

too much N will result in leaf burn all over the plant

Geonerd said:
What's with this New Grammar crap?

Evolution.

pwb said:
This plant had 3-4 leaves like that.
https://www.dropbox.com/s/dtdjz85jmer4lxd/IMAG0515.jpg?dl=0

The plant to the right of that one has a magnesium deficiency. Or had one. I can only see a few leaves.

CAPCOM · Jul 12, 2015

Bottom leave turning yellow and dropping is normal. the plant does not need them as much anymore as the nodes start to produce branches and more foliage to replace them.

pwb · Jul 12, 2015

Heckle said:
The plant to the right of that one has a magnesium deficiency. Or had one. I can only see a few leaves.

I did start to give them some calmag some time ago, foliar spray.
So when the yellowing is starting from the veins that's a sign that the plant don't need that leaves anymore?

Weed · Jul 12, 2015

pwb said:
I did start to give them some calmag some time ago, foliar spray.

So when the yellowing is starting from the veins that's a sign that the plant don't need that leaves anymore?

When the plant yellows (whole leaves, chlorosis) from the bottom up it's usually N deficiency. Most of the rest of the time it's just the plant recycling nitrogen as it prepares to drop leaves that are old and/or too shaded because of newer growth.

Yellowing just between the veins (interveinal chlorosis) is usually a magnesium deficiency. The older leaves already showing symptoms wont recover from a mag feeding unless its foliar.