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1 May 2013 Ammonia volatilization losses were small after mowing field peas in dry conditions
Richard Engel, Clain Jones, Rosie Wallander
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Abstract

Engel, R., Jones, C. and Wallander, R. 2013. Ammonia volatilization losses were small after mowing field peas in dry conditions. Can. J. Soil Sci. 93: 239-242. Ammonia losses following termination of peas (Pisum sativum L.) by mowing were measured using a micrometeorological mass-balance approach. Field trials were conducted during two seasons in a semiarid climate. Plant N in the above ground biomass was 105 and 79 kg N ha-1 in 2011 and 2012, respectively. Vertical NH3 flux estimates were nominal (0.3 to 1.7 g N ha-1 h-1) in the 2 wk following mowing. Cumulative NH3 loss represented 0.3 to 0.5% of the N in plant biomass, indicating that N fertility was not diminished by NH3 volatilization in this dry climate.

Richard Engel, Clain Jones, and Rosie Wallander "Ammonia volatilization losses were small after mowing field peas in dry conditions," Canadian Journal of Soil Science 93(2), 239-242, (1 May 2013). https://doi.org/10.1139/CJSS2012-091
Received: 13 August 2012; Accepted: 1 January 2013; Published: 1 May 2013
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