Reducing N Fertilization without Yield Penalties in Maize with a Commercially Available Seed Dressing

Interuniversity study on maize (Università Cattolica del Sacro Cuore, Piacenza; Università di Milano; Università di Torino; University of California, Davis): the biostimulant Resonant maintained yield with a −30% reduction in nitrogen fertilization and reduced soil N₂O emissions (−23%) compared to standard practices, as reported in the study.

Summary: In the study, maize yield obtained with Resonant combined with a −30% reduction in nitrogen fertilization was comparable to standard management, maintaining productivity. In parallel, a reduction in soil nitrous oxide (N₂O) emissions of −23% was reported compared to standard practices.

Reducing nitrogen fertilization while maintaining yield represents an agronomic and environmental objective of high relevance. Nitrogen is a major driver of N₂O emissions, a potent greenhouse gas, and optimizing nitrogen use efficiency is a concrete operational lever to improve sustainability and performance in cropping systems.

In this context, the article published in Agronomy, coordinated by Professor Tabaglio, evaluates a commercial seed dressing in maize and discusses its use as a strategy to reduce nitrogen input without compromising yield, with a measurable benefit in terms of N₂O emission reduction.

Overall, the study results support the use of the biostimulant Resonant as an agronomic lever to increase nitrogen use efficiency in maize, with measurable impacts on input and emissions under the experimental conditions adopted.