Fertilizer Guide

I was wondering if anyone had a link to a good guide for fertilizers. I saw a small one on SeedLand that recommended 2-3lb of N per 1,000 sqft on Tall Fescue lawns which is what I have. I want to avoid burning my lawn and don't have irrigation so I'm thinking of doing 4 or more small apps per year, I also have a new lawn so the grass may be a bit more fragile. I had a soil test done in the fall through the extension office which was a bit limited but indicated I was low in organics but my P/K was at a decent level. I have since redone my yard and put down 1" of top soil and reseeded with 10lb per K of Falcon fescue. Really I just want to do some learning so I don't screw up my yard, I to enjoy working on it though.