With the phasing out of ammonium nitrate as a fertilizer source of nitrogen, and increased reliance on urea fertilizers, producers need to better understand how ammonia volatilization (loss of nitrogen to the air as ammonia gas) from urea may occur in their soils. Many factors affect ammonia volatilization, such as fertilizer placement, soil temperature, soil moisture, wind, precipitation and soil pH. These articles and presentations explain this process and how producers might minimize nitrogen loss from volatilization. MSU research on ammonia volatilization from urea fertilizer is available at the ammonia volatilization webpage.




Research Reports