The influence of soluble carbon and nitrogen fertilizer on nitric oxide and nitrous oxide emissions from two contrasting agricultural soils

Sánchez Martín, Laura; Vallejo Garcia, Antonio; Dick, Jan y Skiba, Ute M. (2008). The influence of soluble carbon and nitrogen fertilizer on nitric oxide and nitrous oxide emissions from two contrasting agricultural soils. "Soil Biology & Biochemistry", v. 40 (n. 1); pp. 142-151. ISSN 0038-0717. https://doi.org/10.1016/j.soilbio.2007.07.016.

Descripción

Título: The influence of soluble carbon and nitrogen fertilizer on nitric oxide and nitrous oxide emissions from two contrasting agricultural soils
Autor/es:
  • Sánchez Martín, Laura
  • Vallejo Garcia, Antonio
  • Dick, Jan
  • Skiba, Ute M.
Tipo de Documento: Artículo
Título de Revista/Publicación: Soil Biology & Biochemistry
Fecha: Enero 2008
Volumen: 40
Materias:
Palabras Clave Informales: Nitrous oxide; Nitric oxide; Soil respiration; Mineral N; Glucose; Soil moisture; Mitigation.
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

Contradictory effects of simultaneous available organic C and N sources on nitrous oxide (N2O), carbon dioxide (CO2) and nitric oxide (NO) fluxes are reported in the literature. In order to clarify this controversy, laboratory experiments were conduced on two different soils, a semiarid arable soil from Spain (soil I, pH ¼ 7.5, 0.8%C) and a grassland soil from Scotland (soil II, pH ¼ 5.5, 4.1%C). Soils were incubated at two different moisture contents, at a water filled pore space (WFPS) of 90% and 40%. Ammonium sulphate, added at rates equivalent to 200 and 50 kgNha_1, stimulated N2O and NO emissions in both soils. Under wet conditions (90% WFPS), at high and low rates of N additions, cumulative N2O emissions increased by 250.7 and 8.1 ngN2O–Ng_1 in comparison to the control, respectively, in soil I and by 472.2 and 2.1 ng N2O–Ng_1, respectively, in soil II. NO emissions only significantly increased in soil I at the high N application rate with and without glucose addition and at both 40% and 90% WFPS. In both soils additions of glucose together with the high N application rate (200 kgNha_1) reduced cumulative N2O and NO emissions by 94% and 55% in soil I, and by 46% and 66% in soil II, respectively. These differences can be explained by differences in soil properties, including pH, soil mineral N and total and dissolved organic carbon content. It is speculated that nitrifier denitrification was the main source of NO and N2O in the C-poor Spanish soil, and coupled nitrification–denitrification in the C-rich Scottish soil.

Más información

ID de Registro: 2474
Identificador DC: http://oa.upm.es/2474/
Identificador OAI: oai:oa.upm.es:2474
Identificador DOI: 10.1016/j.soilbio.2007.07.016
URL Oficial: http://www.sciencedirect.com/science?_ob=PublicationURL&_tockey=%23TOC%235163%232008%23999599998%23671365%23FLA%23&_cdi=5163&_pubType=J&_auth=y&_acct=C000047350&_version=1&_urlVersion=0&_userid=885385&md5=6f377022f17854dc7eeb5291347e2d9f
Depositado por: Memoria Investigacion
Depositado el: 08 Mar 2010 10:00
Ultima Modificación: 20 Abr 2016 12:09
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