The effect of process variables on granulation of fertilizers was studied. Computer simulations of the granulation process were performed. A comparison of application of pan granulator and fluidized bed granulator was presented. The kinetics of granule drying was also determined.

Microgranule phosphorous soil fertilizer based on a post-production waste was developed. Diffusion of micromolecule components of the granule in soil matrixes was measured. Degradation and diffusion of protein components in soilmatrix was determined.