pHusion Organic Acid 30% Carbon combines the unique properties of lignin and organic acids. pHusion Organic Acid provides the benefits of dissolving Bicarbonates and lowering pH. The lignin complex acts as a buffering agent against corroding metals which allows pHusion Organic Acid to be applied with conventional spraying equipment, or injected through an irrigation system. Lignosulphonate molecule displays most of the properties attributed to humus present in soils: It is a source of plant nutrients due to the carbon and sulfur present in the pHusion Organic Acid molecule.