Lower Temperatures, Still a Risk of Nitrogen Loss

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Fortunately, that same study also showed AGROTAIN^® nitrogen stabilizer protects against this cold weather loss. At one location, untreated urea lost about 44% of its nitrogen through ammonia volatilization after nine weeks (63 days) while urea treated with AGROTAIN stabilizer only lost about 12%.

Weekly NH3 Volatilization Graph

Cumulative NH3 Volatilization Graph

Silt loam soil (pH 8.3)
Precipitation of 0.8 in between 0–9 weeks
Nitrogen rate of 99.7 kg N/ha
Fertilizer applied on February 26
AGROTAIN stabilizer applied at label rate
Soil temperature was about 0° C at the day of application
Campaign 10
Source: Engel et al., 2011. Montana State University.

*The underlying data was provided by Montana State University under a Research Trial Financial Support Agreement with Koch Agronomic Services, LLC and neither Montana State University, nor the individual researchers referenced, endorse or recommend any product or service.