Soil nutrient levels might change more rapidly than you realize. This has implications for whether nutrients should be applied as fertilizer, or not. I showed data from an experiment I did when I was a graduate student in this blog post:

https://www.asianturfgrass.com/post/soil-nutrient-levels-change/

Jason Haines has written about a similar topic, and explained it perhaps more clearly than I have. I recommend his blog post on "Do you have enough?": https://fusariummy.blogspot.com/2023/02/do-you-have-enough.html

To read more about this experiment, see this chapter in my dissertation: http://archive.lib.msu.edu/tic/thesdiss/woods2006h.pdf

Read more about all kinds of turfgrass topics at https://www.asianturfgrass.com/
Find turfgrass information and decision-making tools at https://www.paceturf.org/
See the PACE Turf YouTube channel at https://www.youtube.com/user/paceturf
See the ATC newsletters at https://subscribepage.com/atc_newsletters
Listen to the ATC Doublecut with Micah Woods podcast at https://atc-doublecut.transistor.fm/
Listen to the ATC Office Hours podcast at https://atc-office-hours.transistor.fm/

Find Turf Without Borders at https://turfwb.asianturfgrass.com/
More about ATC soil tests at https://www.asianturfgrass.com/project/soil-tests/