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[APD] Re: Gw/NH4
Can you give us a few examples of those nutrients?
--- Paul Krombholz <krombhol at teclink_net> wrote:
> Deficiencies in
> nutrients not commonly limiting in nature can cause much
> more damage.
Calcium deficiency can wreck a plant pretty quickly. It kills the
meristematic (growth) regions. Potassium deficiency and magnesium
deficiency cause the older leaves to die off. Boron deficiency is
similar to calcium deficiency---the meristematic regions die.
N and P deficiencies have to last a lot longer and become a lot more
severe before any parts of the plant die. The plants basically stop
growing, but don't get damaged so much as delayed. They may be able
to flower and produce some seed even though they are much smaller
than they could be.
Paul Krombholz in sunny central Mississippi
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