Isotopic composition of maize as related to N-fertilization and irrigation in the Mediterranean region

Nitrate leaching as a result of excessive application of N-fertilizers and water use is a major problem of vulnerable regions. The farming of maize requires high N fertilization and water inputs in Spain. Isotopic techniques may provide information on the processes involved in the N and C cycles in...

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Autores: Lasa Larrea, Berta, Irañeta, Iosu, Muro Erreguerena, Julio, Irigoyen Iriarte, Ignacio, Aparicio Tejo, Pedro María
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2011
País:España
Institución:Universidad Pública de Navarra
Repositorio:Academica-e. Repositorio Institucional de la Universidad Pública de Navarra
OAI Identifier:oai:academica-e.unavarra.es:2454/30719
Acceso en línea:https://hdl.handle.net/2454/30719
Access Level:acceso abierto
Palabra clave:Zea mays L.
Furrow irrigation
Nitrogen
Sprinkler irrigation
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spelling Isotopic composition of maize as related to N-fertilization and irrigation in the Mediterranean regionLasa Larrea, BertaIrañeta, IosuMuro Erreguerena, JulioIrigoyen Iriarte, IgnacioAparicio Tejo, Pedro MaríaZea mays L.Furrow irrigationNitrogenSprinkler irrigationNitrate leaching as a result of excessive application of N-fertilizers and water use is a major problem of vulnerable regions. The farming of maize requires high N fertilization and water inputs in Spain. Isotopic techniques may provide information on the processes involved in the N and C cycles in farmed areas. The aim of this work was studying the impact of sprinkler and furrow irrigation and N input on maize (Zea mays L.) yields, and whether isotopic composition can be used as indicator of best farming practices. Trials were set up in Tudela (Spain) with three rates of N fertilization (0, 240 and 320 kg urea-N ha–1) and two irrigation systems (furrow and sprinkler). Yield, nitrogen content, irrigation parameters, N fate and C and N isotope composition were determined. The rate of N fertilization required to obtain the same yield is considerably higher under furrow irrigation, since the crop has less N at its disposal in furrow irrigation as a result of higher loss of nitrogen by NO3 –-N leaching and denitrification. A lower δ13C in plants under furrow irrigation was recorded.The δ15N value of plant increased with the application rate of N under furrow irrigation.This study was supported by DGESIC-AGL2003-06571-CO2-01, Gobierno de Navarra Resolución 17/2004 and MICIN-AGL2006-12792-CO2-01.Escola Superior de Agricultura "Luiz de Queiroz", Universidade de São PauloNatura Ingurunearen ZientziakNekazaritza EkoizpenaCiencias del Medio NaturalProducción AgrariaIdAB. Instituto de Agrobiotecnología / Agrobioteknologiako InstitutuaGobierno de Navarra / Nafarroako Gobernua, 17/20042011info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://hdl.handle.net/2454/30719reponame:Academica-e. Repositorio Institucional de la Universidad Pública de Navarrainstname:Universidad Pública de NavarraInglésCreative Commons Attribution 4.0 International (CC BY 4.0)https://creativecommons.org/licenses/by/4.0/deed.en/info:eu-repo/semantics/openAccessoai:academica-e.unavarra.es:2454/307192026-06-17T12:41:47Z
dc.title.none.fl_str_mv Isotopic composition of maize as related to N-fertilization and irrigation in the Mediterranean region
title Isotopic composition of maize as related to N-fertilization and irrigation in the Mediterranean region
spellingShingle Isotopic composition of maize as related to N-fertilization and irrigation in the Mediterranean region
Lasa Larrea, Berta
Zea mays L.
Furrow irrigation
Nitrogen
Sprinkler irrigation
title_short Isotopic composition of maize as related to N-fertilization and irrigation in the Mediterranean region
title_full Isotopic composition of maize as related to N-fertilization and irrigation in the Mediterranean region
title_fullStr Isotopic composition of maize as related to N-fertilization and irrigation in the Mediterranean region
title_full_unstemmed Isotopic composition of maize as related to N-fertilization and irrigation in the Mediterranean region
title_sort Isotopic composition of maize as related to N-fertilization and irrigation in the Mediterranean region
dc.creator.none.fl_str_mv Lasa Larrea, Berta
Irañeta, Iosu
Muro Erreguerena, Julio
Irigoyen Iriarte, Ignacio
Aparicio Tejo, Pedro María
author Lasa Larrea, Berta
author_facet Lasa Larrea, Berta
Irañeta, Iosu
Muro Erreguerena, Julio
Irigoyen Iriarte, Ignacio
Aparicio Tejo, Pedro María
author_role author
author2 Irañeta, Iosu
Muro Erreguerena, Julio
Irigoyen Iriarte, Ignacio
Aparicio Tejo, Pedro María
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Natura Ingurunearen Zientziak
Nekazaritza Ekoizpena
Ciencias del Medio Natural
Producción Agraria
IdAB. Instituto de Agrobiotecnología / Agrobioteknologiako Institutua
Gobierno de Navarra / Nafarroako Gobernua, 17/2004
dc.subject.none.fl_str_mv Zea mays L.
Furrow irrigation
Nitrogen
Sprinkler irrigation
topic Zea mays L.
Furrow irrigation
Nitrogen
Sprinkler irrigation
description Nitrate leaching as a result of excessive application of N-fertilizers and water use is a major problem of vulnerable regions. The farming of maize requires high N fertilization and water inputs in Spain. Isotopic techniques may provide information on the processes involved in the N and C cycles in farmed areas. The aim of this work was studying the impact of sprinkler and furrow irrigation and N input on maize (Zea mays L.) yields, and whether isotopic composition can be used as indicator of best farming practices. Trials were set up in Tudela (Spain) with three rates of N fertilization (0, 240 and 320 kg urea-N ha–1) and two irrigation systems (furrow and sprinkler). Yield, nitrogen content, irrigation parameters, N fate and C and N isotope composition were determined. The rate of N fertilization required to obtain the same yield is considerably higher under furrow irrigation, since the crop has less N at its disposal in furrow irrigation as a result of higher loss of nitrogen by NO3 –-N leaching and denitrification. A lower δ13C in plants under furrow irrigation was recorded.The δ15N value of plant increased with the application rate of N under furrow irrigation.
publishDate 2011
dc.date.none.fl_str_mv 2011
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2454/30719
url https://hdl.handle.net/2454/30719
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.rights.none.fl_str_mv Creative Commons Attribution 4.0 International (CC BY 4.0)
https://creativecommons.org/licenses/by/4.0/deed.en/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Creative Commons Attribution 4.0 International (CC BY 4.0)
https://creativecommons.org/licenses/by/4.0/deed.en/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Escola Superior de Agricultura "Luiz de Queiroz", Universidade de São Paulo
publisher.none.fl_str_mv Escola Superior de Agricultura "Luiz de Queiroz", Universidade de São Paulo
dc.source.none.fl_str_mv reponame:Academica-e. Repositorio Institucional de la Universidad Pública de Navarra
instname:Universidad Pública de Navarra
instname_str Universidad Pública de Navarra
reponame_str Academica-e. Repositorio Institucional de la Universidad Pública de Navarra
collection Academica-e. Repositorio Institucional de la Universidad Pública de Navarra
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