Desensitized fertilizer compositions and methods of making same

A method of making a desensitized fertilizer granule, comprising:

• reacting superphosphoric acid and ammonia under heat to form an ammonium polyphosphate solution, wherein the ammonium polyphosphate solution has a total nitrogen content as N from about 10 to about 12 weight percent and a total phosphorous content as P2O5 from about 34 to about 38 weight percent based on the total weight of the ammonium polyphosphate solution,
• combining the ammonium polyphosphate solution with a liquid fertilizer material to form a mixture, wherein the fertilizer material comprises a nitrate group,
• heating the mixture to form a concentrated melt comprising a water content of about 3 percent or less, and
• granulating the concentrated melt to produce a desensitized fertilizer granule, wherein the desensitized fertilizer granule comprises a plurality of particles distributed throughout the fertilizer material, and wherein the particles comprise monoammonium phosphate, diammonium phosphate, ammonium phosphate, polyphosphate, or combinations thereof.