Yellow leaves and how much nitrogen to add and how often?

newbiegrower420

Active Member
Ok. I've been adding N to my nutes and foliar feeding every 3 days with a 1/2 dose of N. LEaves still appear to be getting a little more yellow. Any idea's?
 

newbiegrower420

Active Member
However, it also looks like the photo from N deficiency. The iron issue states it affect new leaves. Mine affect old leaves and moves on to the newer growth.
 
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