Patent ID: 8008079

Claim:
A method of selecting a fertilizer type comprising: entering geographic location data into a computer to determine a water type; determining at least one fertilizer type that is compatible with said computed water type; and communicating said fertilizer type to a grower without consultation with a water chemistry or plant specialist; wherein said water type comprises Water Type 1, Water Type 2, Water Type 3, and/or Water Type 4, and further wherein: Water Type 1 comprises an alkalinity ranging from 0 to 60 ppm and a calcium concentration ranging from 0 to 60 ppm, Water Type 2 comprises an alkalinity ranging from 60 to 150 ppm and a calcium concentration ranging from 0 to 60 ppm, Water Type 3 comprises an alkalinity ranging from 150 to 200 ppm and a calcium concentration of greater than 50 ppm, and Water Type 4 comprises an alkalinity ranging from 200 to 240 ppm and a calcium concentration of greater than 50 ppm.