Divina Gracia P. Rodriguez, David S. Bullock, and Maria A. Boerngen recently published, “The Origins, Implications, and Consequences of Yield-Based Nitrogen Fertilizer Management” in the Agronomy Journal.
Check out their work, now featured on the cover of Crop, Soils, Agronomy News Magazine:
Yield-Based Nitrogen Management
Rules are made to be broken—or at least challenged—even on the farm. The “1.2 Rule” for nitrogen fertilizer application has guided countless agricultural researchers, consultants, extension agents, and farmers for decades. However, some researchers have begun to re-examine the evidence behind it as well as the history of the rule itself.
In an article published recently in Agronomy Journal (http://doi.org/10.2134/agronj2018.07.0479), agricultural economists and agronomists summarized the research that shows the ineffectiveness and harmfulness of the 1.2 Rule and yield-based nitrogen fertilizer management, how the rule came to be, and where the research should go next.