A fertilizer composition comprises an inorganic fertilizer particle, a first layer disposed on the inorganic fertilizer particle, and a second layer disposed on the first layer wherein the first layer comprises biomaterial and the second layer comprises phosphoric acid, ammonium polyphosphate, or a combination comprising at least one of the foregoing. A method of making the fertilizer composition is also described herein. The inorganic fertilizer particle comprises ammonium sulfate, ammonium nitrate, ammonium sulfate- nitrate, calcium nitrate, calcium ammonium nitrate, urea, ammonium phosphate, mono- and di-ammonium phosphate, polyphosphate, triple super phosphate, potassium nitrate, potassium chloride and potassium sulfate, or a combinations of the foregoing. The biomaterial may consist of animal wastes, particularly manure and may be produced by a thermochemical reaction (i.e pyrolysis) or hydrothermal conversion process in the absence of oxygen.
