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

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

Description

Title: Ammonia emissions from a soil amended with urea and inhibitor of urease activity in a Mediterranean area
Author/s:
  • Sanz Cobeña, Alberto
  • Misselbrook, T
  • Pedro Hernáiz, P.
  • Diez, J.A.
  • Arce Martinez, Augusto
  • Mingot Salvetti, Juan Ignacio
  • Vallejo Garcia, Antonio
Item Type: Presentation at Congress or Conference (Unspecified)
Event Title: The 15th N Workshop
Event Dates: 28/05/2007-30/05/2007
Event Location: Lérida, España
Title of Book: Toward a better efficiency in N use
Date: 2007
ISBN: 978-84-97432474
Subjects:
Faculty: E.T.S.I. Agrónomos (UPM) [antigua denominación]
Department: Química y Análisis Agrícola [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

Full text

[img]
Preview
PDF - Requires a PDF viewer, such as GSview, Xpdf or Adobe Acrobat Reader
Download (364kB) | Preview

Abstract

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.

More information

Item ID: 4758
DC Identifier: http://oa.upm.es/4758/
OAI Identifier: oai:oa.upm.es:4758
Official URL: http://www.nitrogen15workshop.udl.es/
Deposited by: Memoria Investigacion
Deposited on: 02 Nov 2010 12:06
Last Modified: 20 Apr 2016 13:51
  • Logo InvestigaM (UPM)
  • Logo GEOUP4
  • Logo Open Access
  • Open Access
  • Logo Sherpa/Romeo
    Check whether the anglo-saxon journal in which you have published an article allows you to also publish it under open access.
  • Logo Dulcinea
    Check whether the spanish journal in which you have published an article allows you to also publish it under open access.
  • Logo de Recolecta
  • Logo del Observatorio I+D+i UPM
  • Logo de OpenCourseWare UPM