My lawn has had light and dark patchy color for the last couple of years. It is a little like a camoflage pattern. But it is healthy and grows well everywhere. I used to have an organic lawn service, who did not do anything for the problem (plus my yard always smelled like dead fish). Based on information I saw on the internet, I have fertilized it with 29-0-4 fertilizer twice now over the last month with absolutely no difference. What am I doing wrong?
P.S. - I use reclaimed water, if that matters for this.