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| The extreme degree of the purpling makes me think something is wrong beyond P deficiency (and especially since some P was applied). Make sure you don't have any herbicide carryover or injury. Also, check the roots to make sure they're healthy (plentiful in number, white, round, without any damaged sections or lesions). The soil looks a bit sandy, so various types of nematodes could be pruning the roots, which would make the plant deficient in all sorts of nutrients.
Yellowing of lower leaves would likely be N def or Mg def., or perhaps K def. | |
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whats up with this milo??
