Abstract: A method for forming a binder-free granular or semi-granular fertilizer is disclosed, which comprises mixing a seed material and primary and secondary nutrient sources in a blender under heat until a slurry is formed, transferring the slurry to a long dryer, and drying the product under vacuum and thereafter gradually cooling the product to produce a granular or semi-granular fertilizer with a core of a seed material and a coating of secondary nutrient salts crystallized thereabout, with nutrients and biologically active agents entrained therein. The fertilizer formed has excellent stability and may be urea-free.