A controlled release agricultural absorbent based product including
particles of an absorbent material containing capillaries/voids between
10-200 microns in cross-sectional diameter which is impregnated in an
amount of 40-95% of the capillaries/voids volume with an agriculturally
beneficial material selected from the group consisting of fertilizers,
insecticides, herbicides and fungicides, being produced by a process
including steps of 1) introducing water to particles of absorbent
material to result in absorption of water within the absorbent material,
2) heating the absorbent particles and water to transform the water
within the absorbent particles to steam, 3) introducing the heated
absorbent particles to an agriculturally beneficial material in aqueous
solution to essentially saturate the absorbent particles with the
agriculturally beneficial material, 4) granulating the combination of
agriculturally beneficial material and saturated absorbent particles to
solidify and harden the mixture, resulting in the agglomeration of
absorbent particles into granules, and 5) drying the granules.