Urea-Triazone N Characteristics and Uses

Urea-triazone nitrogen (N) is a stable solution resulting from a controlled reaction in aqueous medium of urea, formaldehyde, and ammonia which contains at least 25% total N. This N source contains no more than 40%, nor less than 5%, of total N from unreacted urea and not less that 40% from triazone...

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Main Author: John G. Clapp
Format: Article
Language:English
Published: Wiley 2001-01-01
Series:The Scientific World Journal
Online Access:http://dx.doi.org/10.1100/tsw.2001.356
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author John G. Clapp
author_facet John G. Clapp
author_sort John G. Clapp
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description Urea-triazone nitrogen (N) is a stable solution resulting from a controlled reaction in aqueous medium of urea, formaldehyde, and ammonia which contains at least 25% total N. This N source contains no more than 40%, nor less than 5%, of total N from unreacted urea and not less that 40% from triazone. All other N shall be derived from water-soluble dissolved reaction products of the above reactants. It is a source of slowly available N. The rate of mineralization of urea-triazone is about 66% that of urea after 8 days when incorporated in a Munjor sandy loam. Ammonia volatilization losses of N applied as urea-triazone were about 41% of those from urea on a Cecil sandy loam in the first week after application. N leaching losses through saturated Yolo loam columns of urea-triazone were about two thirds that of urea or nitrate N. This N source has proven to be a safer and more effective material for direct application on plant foliage. Tomato growth was enhanced with foliar application of urea-triazone relative to that obtained from ammonium nitrate or urea. The stability of this N source from potential losses via ammonia volatilization and nitrate leaching when soil applied is also documented by results from university trials.
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spelling doaj-art-4ed4bbc462e6460d8fe6f6648c2d595b2025-08-20T03:36:32ZengWileyThe Scientific World Journal1537-744X2001-01-01110310710.1100/tsw.2001.356Urea-Triazone N Characteristics and UsesJohn G. Clapp0Technical Agricultural Products, Research and Development, Tessenderlo Kerley, Inc, Greensboro, NC 27405, USAUrea-triazone nitrogen (N) is a stable solution resulting from a controlled reaction in aqueous medium of urea, formaldehyde, and ammonia which contains at least 25% total N. This N source contains no more than 40%, nor less than 5%, of total N from unreacted urea and not less that 40% from triazone. All other N shall be derived from water-soluble dissolved reaction products of the above reactants. It is a source of slowly available N. The rate of mineralization of urea-triazone is about 66% that of urea after 8 days when incorporated in a Munjor sandy loam. Ammonia volatilization losses of N applied as urea-triazone were about 41% of those from urea on a Cecil sandy loam in the first week after application. N leaching losses through saturated Yolo loam columns of urea-triazone were about two thirds that of urea or nitrate N. This N source has proven to be a safer and more effective material for direct application on plant foliage. Tomato growth was enhanced with foliar application of urea-triazone relative to that obtained from ammonium nitrate or urea. The stability of this N source from potential losses via ammonia volatilization and nitrate leaching when soil applied is also documented by results from university trials.http://dx.doi.org/10.1100/tsw.2001.356
spellingShingle John G. Clapp
Urea-Triazone N Characteristics and Uses
The Scientific World Journal
title Urea-Triazone N Characteristics and Uses
title_full Urea-Triazone N Characteristics and Uses
title_fullStr Urea-Triazone N Characteristics and Uses
title_full_unstemmed Urea-Triazone N Characteristics and Uses
title_short Urea-Triazone N Characteristics and Uses
title_sort urea triazone n characteristics and uses
url http://dx.doi.org/10.1100/tsw.2001.356
work_keys_str_mv AT johngclapp ureatriazonencharacteristicsanduses