The Andersons Humic DG Granular Soil Conditioner (Humic Acid), 40lb Bag Improves plant's ability to take in nutrients and increases soil carbon, plant health, and seed germination Chelates nutrients to make elements available for a longer period of time Effective in sandy soil, can be blended with fertilizers or used alone Contains 4 biologically active components: HAP, fulvic acid, humic acid and humin Cannot be shipped to Arkansas or South Dakota