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Nitrogen def???

Discussion in 'Sick Plants and Problems' started by Benteke2, Feb 12, 2014.

  1. Hey everyone,
     
    Just wondering what is going on here. It is week 4 of flowering and the leaves below the screen have all turned yellow and its starting to creep above the screen.
     
    Is it N deficiency? or worse?
     
    Thanks! 

     

    Attached Files:

  2. Ph of the root-zone has been driven low by excess salts. Plants are expressing a Mg and Ca deficit.
     
  3.  
    Thanks for the reply. I flushed it out. How long should I wait to add nutes again?
     
  4. Yellow leaves is (N) def. yellow leaves with green veins is (Mg) def
     
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