Ind. Code § 15-16-1.5-52
"Organic fertilizer" means any fertilizer material derived from plant products, animal products, or manures that contain one (1) or more nutrients (other than carbon, hydrogen, or oxygen) that are essential for plant growth. The term does not include biosolids, industrial waste products, pollutant-bearing water, or urea.
As added by P.L.98-2026, SEC.2.