Quote Originally Posted by Mr. Happy
What is weird is that the tops of the leaves are yellowing as opposed to the bottom leaves usually seen in N deficiency. Are you sure its not something else like heat stress? Also, your PH seems too high, try 6.0-6.5 for soil.
of course its N deficiency, when flowering plants dont need N cause they are vegging anymore!!!!!! look at mine. you can see it a little, i would show the whole plant but i cant find one with out my girl in it. rambler your on the right track, if your half way through, you could add just a tiny bit of N but you really dont need to. your plants concentrating on flowering rather than producing fan leaves.