Post-N is a liquid formulation created to improve the commercial characteristics of cereal yields. The complexing properties of the humic substances and the carrier power of RyZea induce a quick assimilation and mobilization of the nutrients at cellular level, thus ensuring an immediate response. Post-N, if applied between flowering and ripening, provides readily assimilable nitrogen, secondary nutritive elements and trace elements that improve nitrogen absorption and metabolism, increasing the quantity and quality of the protein content of grains.