Nitrogen def???

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

  1. #1 Benteke2, Feb 12, 2014
    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! 

     

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  2. #2 mmman, Feb 12, 2014
    Ph of the root-zone has been driven low by excess salts. Plants are expressing a Mg and Ca deficit.
     
  3. #3 Benteke2, Feb 13, 2014
     
    Thanks for the reply. I flushed it out. How long should I wait to add nutes again?
     
  4. #4 Vee, Feb 13, 2014
    Yellow leaves is (N) def. yellow leaves with green veins is (Mg) def
     

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