When N-P-K is combined in this manner the end product is vastly different from the conventional. Three chemically incompatible materials are combined in the hot mix process to produce a violent chemical reaction. The liquids boil for two days but when they have cooled a new compound has been created. This new N-P-K compound has been created using food-grade materials. It has low sodium a neutral pH and it is compatible with most other inputs. Nutri-Tech Hot Mix N-P-K™ is a more powerful source of these three important elements than any other comparable analysis materials. Benefits The hot-mix process creates a material which provides a far greater response than the sum of the parts particularly in foliar situations. Ideal as a base for D.I.Y formulations – foliar or fertigation.