Hey, I moved into a new home a few months ago and I'm starting to renovate the lawn. I have about 6000 sq ft, st augustine, and live in South Florida. I've been reading up a lot and have settled on using Milorganite and some of the products offered by the Greene County Fertilizer (RGS, Humic Acid). I recently got a soil test done, see attached, but I'm not sure what products I should use to get some of the other values up . For example, potassium and iron are way low. Any help would be greatly appreciated. After this sample was taken I put down about .5 lb / 1000 sq ft of N from milorganite.