Milorganite one of the all time best. I'm aware of florida's issues with phosphorus. The problem is the so called surplus of phosphorus in our soils. Yea it's kinda there but it's locked in the soil ( not avail for use ). potassium is one of my favorite elements for healthy turf conditions. but it's secondary to phosphorus's ability to repair damaged or weak turf. cutting this nutrient out completely was a bad idea. wonder why chinch recovery is tough. nice thing about milorganite applied it does help slightly to break out the locked phosphorus, but only helpfull in long term goals. sorry don't know why that all came out.