Aptus - Humic BlastORGANIC SOIL CONDITIONER Humic Blast is an organic soil conditioner that improves plants ability to absorb nutrients, balances the charge in mediums creating airy soil structure and improves water retention. Humic Blast neutralizes build up of acids and salts in the medium freeing locked up nutrients. Humic Blast is rich in Carbon and Potassium humates and is supplemented with natural plant hormones and microelements.