yellowing leaves

Discussion in 'Sick Plants and Problems' started by Jotun, Sep 28, 2009.

  1. I've been growing 13 plants under Two 40 watt 48 inch "Plant & Aquarium lights in a 7 inch white reflector hood. I've also been using organic soil called cedar grove, there about 4 weeks old and only some plants have yellowing leaves, i think it might be a nitrogen deficiency but since only certain plants have yellowing leaves i'm thinking it might be something else.:confused: tomatoes

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