Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
Effectiveness of the urease inhibition on the abatement of nitrous oxide, nitric oxide and ammonia emissions in a non-irrigated Mediterranean barley field
Year:2012
Research Areas
  • Natural sciences and health sciences,
  • Agriculture
Information
Abstract
Urea is considered the cheapest and most commonly used form of inorganic N fertilizer worldwide. However, its use is associated with emissions of ammonia (NH(3)), nitrous oxide (N(2)O) and nitric oxide (NO), which have both economic and environmental impact. Urease activity inhibitors have been proposed as a means to reduce NH(3) emissions, although limited information exists about their effect on N(2)O and NO emissions. In this context, a field experiment was carried out with a barley crop (Hordeum vulgare L.) under Mediterranean conditions to test the effectiveness of the urease inhibitor N-(n-butyl) thiophosphoric triamide (NBPT) on reducing these gaseous N losses from surface applied urea. Crop yield, soil mineral N concentrations, dissolved organic carbon (DOC), denitrification potential, NH(3), N(2)O and NO fluxes were measured during the growing season. The inclusion of the inhibitor reduced NH(3) emissions in the 30 d following urea application by 58% and net N(2)O and NO emissions in the 95 d following urea application by 86% and 88%, respectively. NBPT addition also increased grain yield by 5% and N uptake by 6%, although neither increase was statistically significant. Under the experimental conditions presented here, these results demonstrate the potential of the urease inhibitor NBPT in abating NH(3), N(2)O and NO emissions from arable soils fertilized with urea, slowing urea hydrolysis and releasing lower concentrations of NH(4)(+) to the upper soil layer.
International
Si
JCR
Si
Title
Chemosphere
ISBN
0045-6535
Impact factor JCR
3,206
Impact info
Datos JCR del año 2011
Volume
3
Journal number
89
From page
310
To page
318
Month
SEPTIEMBRE
Ranking
Participants
  • Autor: Diego Abalos Rodriguez (UPM)
  • Autor: Alberto Sanz Cobeña (UPM)
  • Autor: Thomas Misselbrook (Rothamsted Research)
  • Autor: Antonio Vallejo Garcia (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Contaminación de agroecosistemas por las prácticas agrícolas
  • Departamento: Química y Análisis Agrícola
S2i 2020 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
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