Ammonia emissions from a soil amended with urea and inhibitor of urease activity in a Mediterranean area

Sanz Cobeña, Alberto; Misselbrook, T; Pedro Hernáiz, P.; Diez, J.A.; Arce Martinez, Augusto; Mingot Salvetti, Juan Ignacio y Vallejo Garcia, Antonio (2007). Ammonia emissions from a soil amended with urea and inhibitor of urease activity in a Mediterranean area. En: "The 15th N Workshop", 28/05/2007-30/05/2007, Lérida, España. ISBN 978-84-97432474.

Descripción

Título: Ammonia emissions from a soil amended with urea and inhibitor of urease activity in a Mediterranean area
Autor/es:
  • Sanz Cobeña, Alberto
  • Misselbrook, T
  • Pedro Hernáiz, P.
  • Diez, J.A.
  • Arce Martinez, Augusto
  • Mingot Salvetti, Juan Ignacio
  • Vallejo Garcia, Antonio
Tipo de Documento: Ponencia en Congreso o Jornada (Sin especificar)
Título del Evento: The 15th N Workshop
Fechas del Evento: 28/05/2007-30/05/2007
Lugar del Evento: Lérida, España
Título del Libro: Toward a better efficiency in N use
Fecha: 2007
ISBN: 978-84-97432474
Materias:
Escuela: E.T.S.I. Agrónomos (UPM) [antigua denominación]
Departamento: Química y Análisis Agrícola [hasta 2014]
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

Urea and ammonium-based fertilisers are nowadays one of the most important sources of ammonia (NH3) emissions to the atmosphere in Europe. However, little is known about NH3 volatilisation in Mediterranean areas. The aim of the present study was the quantification of NH3 emissions by using the Integrated Horizontal Flux (IHF) method after application of urea with the urease inhibitor N-(n-butyl) thiophosphorie triamide (NBPT) to a semiarid agricultural soil. The field experiment was carried out at "La Poveda" field station in Madrid on a sunflower crop in spring 2006. Urea and a mixture of urea and the inhibitor (0.14%) were surfaee-applied by hand at a rate of 170 kg N ha"' to eircular plots (diam. 40 m). The soil was irrigated with 10 mm of water just after the applieation of urea to dissolve and incorporate it onto the first layer of soil. There were three peaks in the NH3 flux over the duration of the measurement period (36 d). The first peak was associated to irrigation and the others to rainfall events. The total NH3 emission during the whole experiment (36 days) was 17.3 ±5.5kgNH3-N ha"1 in the ease of urea treated soils and 10.0 ± 4.5 kg NHrN ha"' where NBPT was ineluded with the urea.

Más información

ID de Registro: 4758
Identificador DC: http://oa.upm.es/4758/
Identificador OAI: oai:oa.upm.es:4758
URL Oficial: http://www.nitrogen15workshop.udl.es/
Depositado por: Memoria Investigacion
Depositado el: 02 Nov 2010 12:06
Ultima Modificación: 20 Abr 2016 13:51
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