What is in your poulty manure mix? (how much nitrogen?)

In general, you'll want to fertilize every month to month and a half. Since organic fertilizers generally need to be broken down in the soil, the timing isn't quite as critical as with standard fertilizers. Also, if you are using grain based fertilizers, it is pretty hard to overdue it. The nutrients aren't available until the microbes get to work, so there is a bit of a self limiting effect there. My concern would be with anything manure based. Those products often have the same potential to burn a lawn as synthetic fertilizers, so you need to follow the applications directions just like you would a chemical treatment.

Thanks.

The Poultry manure mix is 5-3-2, so my math says that 2 40 lbs bags of that and 2 40 lb bags of corn meal should get me 12 lbs of nitrogen for the 10k sq feet of lawn.

I would go 100% CGM but its numbers are 9-0-0 and I feel like my lawn should have a more balanced diet. (12 lbs N, 3.2 lbs P, 2.4lbs K).

I just read the posts on here about CGM from rutgers1 and decided it might not be worth anything as a pre-emergent herbicide but the CGM seems to be a better/safer choice than blood meal.