Soil nitrous oxide emissions under different management practices in the semiarid region of the Argentinian Pampas

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The aim of this study was to analyze the influence of different crop sequences [soybean-corn and soybean-soybean] and tillage systems [no tillage and reduced tillage] on nitrous oxide [N2O] soil emissions under field conditions. The experiment was carried out in Manfredi, Córdoba province, Argentina...

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Detalles Bibliográficos
Otros Autores: Alvarez, Carolina, Costantini, Alejandro Oscar, Alvarez, Carina Rosa, Alves, Bruno José Rodrigues, Jantalia, Cláudia Pozzi, Martellotto, Eduardo Enrique, Urquiaga, Segundo
Formato: Artículo
Lenguaje:Inglés
Materias:
CORN
GREENHOUSE GASES
IPCC
NO TILLAGE
REDUCED TILLAGE
SOYBEAN
EXPERIMENTAL STUDY
FIELD SURVEY
INTERGOVERNMENTAL PANEL ON CLIMATE CHANGE
MAIZE
NITROGEN
NITROUS OXIDE
POREWATER
SEMIARID REGION
SOIL PROPERTY
TILLAGE
ARGENTINA
PAMPAS
GLYCINE MAX
ZEA MAYS
Acceso en línea:http://ri.agro.uba.ar/files/intranet/articulo/2012Alvarez.pdf
LINK AL EDITOR
Aporte de:Registro referencial: Solicitar el recurso aquí
Biblioteca Central (FAUBA) de Universidad de Buenos Aires
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245 1 0 |a Soil nitrous oxide emissions under different management practices in the semiarid region of the Argentinian Pampas 
520 |a The aim of this study was to analyze the influence of different crop sequences [soybean-corn and soybean-soybean] and tillage systems [no tillage and reduced tillage] on nitrous oxide [N2O] soil emissions under field conditions. The experiment was carried out in Manfredi, Córdoba province, Argentina on an Entic Haplustoll and N2O emissions were measured in the field during a year. N2O fluxes were low during winter, but in late spring it peaked. For fallow, N-NO3-content was the most important variable to explain N2O emissions. For growing period water-filled pores was the main variable explaining N2O emissions. Nitrogen fertilization of corn crop increased N2O-N emissions, whereas no significant differences were found due to the tillage system. Measured annual N2O-N emissions were generally lower than those calculated using the methodology proposed by the Intergovernmental Panel on Climate Change. 
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