I think the additional yellow and orange spectrum triggers biological functions sooner and more intensely. It's the point of adding them and what I was hoping for! Again I have to point out the TREES that @stepside grows in his yard. ...Logically they would then require more nutrients. I don't think it's just N. If I only wanted to add N, I'd use worm castings though.
Yeah see Eye knows better on this. I'd listen to her not me lol