Re: Fertilizing conundrum
I'm of the belief that you should amend your soil and forget about fertilizer altogether. Amending the soil is very easy if you've got access to compost or manure, if not then fertilizer is probably the better way to go.
Here's the thing, if your soil is so bad that it won't support life, then you're going to have a tough time getting seed to germinate and take hold, resulting in spotty growth and an extended period of time for the grass to fill in - if it ever does. By amending the soil, you're creating a rich bio-environment for your grass, rather than a chemical placebo that is only feeding the plant, not the soil itself.
If you go the amending route, layer on 3 to 6 inches of compost and blend it into the top 6 inches of soil well. Plant your seed or preferably lay sod, then all you've got to do is water and you're done. If you go the fertilizer route, I would consult the seed suppliers instructions for the type of fertilizer to use and how to apply it.
I suffer from CDO ... Its like OCD, but in alphabetical order, LIKE IT SHOULD BE!!!