Liquid nitrogen fertilizers such as Infolen E open up new opportunities to enhance foliar nutrient uptake efficiency and improve the precision of nitrogen use. The unique Infolen technology promotes increased stomatal conductance and accelerates nitrogen assimilation through the leaf surface. Initial field observations suggest that these effects may trigger additional physiological responses beyond mere nitrogen provision. This presentation will explore the underlying mechanisms of action, summarize early trial results, and outline the potential of this technology. It will also address the future role of modern liquid N formulations and their application strategies within integrated crop management systems.