Soil tests don't typically test for N. What's your fertilization schedule, where are you located and what kind of grass do you have?

I'm about an hour east of Chicago in Valparaiso Indiana. Last years fert schedule got thrown way off since we had a baby and she spent a week in NICU in June. Basically I was planning on hitting monthly apps of Milo with SOP or a balanced fert then 2 weeks later I would put cracked corn or alpha pellets. So June July and Aug I did good just to keep it mowed and weeds at bay. Sept i put down Milo then in later October or early November I put down a winter fertilizer. Per my soil test last March I know I need K. I have a mix of kbg and fescue. However the area I'm talking about is mainly fescue I believe.

Purdue has these recommendations for turfgrass fertilization of Indiana lawns. If you know you need potassium, you can select a fertilizer that has a good amount in it. Or you can supplement a mostly nitrogen fertilizer with SOP. Always water in synthetic fertilizers.