So I'm trying to figure out why it looks like K def. I pulled this article off a site which is interesting.
Potassium deficiency/toxicity is exactly as it describes — a lack of enough potassium in the soil or medium to provide enough nutrients for the plant to properly grow, or an excess of potassium that can cause a lockout of potassium. Ironically, an excess of potassium in the soil can cause potassium deficiency.
Additionally, sometimes antagonism from other nutrients may cause what appears to be potassium deficiency/toxicity. According to our vetted partners at xxx, an excess of the following can cause an apparent deficiency/toxicity in potassium:
- Nitrogen
- Potassium
- Calcium
- Magnesium
So I don't think we have given the plant too much of any of the items listed in 1-4. It's only recently we bumped up the K but it was already apparent. If the soil is too acidic that can cause K lockout as well, but we have to assume the FFOF is neutral.
