February 27, 2019
Winter Fertilization Facts
Fall and winter broadcast application of urea (46-0-0) continues to take place on various winter wheat farms across Chouteau County. The major concern of broadcasting urea is nitrogen loss through ammonia volatilization. Volatilization results when there is a conversion from dissolved ammonia to ammonia gas. From 2008-2012, Rick Engel and Clain Jones (MSU Soil Scientists) have studied NH3 losses from surface-applied urea. Below are a few conclusions of their research.
• Engle’s research (4 years and 20 studies) documented a range of 1-44% volatilization of...
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