Tips for a fertilizer/weed control as I seed this spring

[forgop]

I'm going to put down 100# of kentucky bluegrass in the near future and was looking for a good fertizlier/weed killer. I wasn't sure if a Scotts Liquid Turf Builder +2 would be a good application for it or not. I won't be putting down a crabgrass preventative as I know I won't get grass to grow with applying it.

I just bought this house last spring and it has its problems with the lack of a nice quality turf and just trying to keep seeding the hell out of it to fill in bare areas. I don't want to deal with muddy areas all summer any time we have much rain.

Any suggestions? Thanks!