Larry Williams, UF/IFAS Extension Agent for Okaloosa County, offers lawn and garden advice specific to Northwest Florida.
689-5850 or 729-1400, Ext. 5850
The first thing to look for on a fertilizer container is the analysis. The analysis is a series of three numbers such as 16-4-8. These numbers show the guaranteed amounts of nitrogen (N), phosphorus (P) and potassium (K) and always in that order.
A fertilizer labeled 15-2-15 contains 15 percent N, 2 percent P and 15 percent K. A hundred pound bag of this analysis contains 15 lbs N, 2 lbs P and 15 lbs K. the sum of these numbers is 32 (15 lbs + 2 lbs + 15 lbs = 32 lbs). Other chemical