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

Lasa Larrea, Berta; Irañeta, Iosu; Muro Erreguerena, Julio; Irigoyen Iriarte, Ignacio; Aparicio Tejo, Pedro María

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

dc.contributor.author	Lasa Larrea, Berta
dc.contributor.author	Irañeta, Iosu	es_ES
dc.contributor.author	Muro Erreguerena, Julio
dc.contributor.author	Irigoyen Iriarte, Ignacio
dc.contributor.author	Aparicio Tejo, Pedro María
dc.contributor.department	Natura Ingurunearen Zientziak	eu
dc.contributor.department	Nekazaritza Ekoizpena	eu
dc.contributor.department	Ciencias del Medio Natural	es_ES
dc.contributor.department	Producción Agraria	es_ES
dc.contributor.department	IdAB. Instituto de Agrobiotecnología / Agrobioteknologiako Institutua	es_ES
dc.contributor.funder	Gobierno de Navarra / Nafarroako Gobernua, 17/2004	es
dc.date.accessioned	2018-09-19T09:37:42Z
dc.date.available	2018-09-19T09:37:42Z
dc.date.issued	2011
dc.description.abstract	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.	en
dc.description.sponsorship	This study was supported by DGESIC-AGL2003-06571-CO2-01, Gobierno de Navarra Resolución 17/2004 and MICIN-AGL2006-12792-CO2-01.	en
dc.format.extent	9 p.
dc.format.mimetype	application/pdf	en
dc.identifier.doi	10.1590/s0103-90162011000200008
dc.identifier.issn	1678-992X (Electronic)
dc.identifier.uri	https://academica-e.unavarra.es/handle/2454/30719
dc.language.iso	eng	en
dc.publisher	Escola Superior de Agricultura "Luiz de Queiroz", Universidade de São Paulo	pt
dc.relation.ispartof	Scientia Agricola, (Piracicaba, Braz.), v.68, n.2, p.182-190, March/April 2011	pt
dc.relation.publisherversion	https://doi.org/10.1590/s0103-90162011000200008
dc.rights	Creative Commons Attribution 4.0 International (CC BY 4.0)	en
dc.rights.accessRights	info:eu-repo/semantics/openAccess	en
dc.rights.accessRights	Acceso abierto / Sarbide irekia	es
dc.rights.uri	https://creativecommons.org/licenses/by/4.0/deed.en/
dc.subject	Zea mays L.	en
dc.subject	Furrow irrigation	en
dc.subject	Nitrogen	en
dc.subject	Sprinkler irrigation	en
dc.title	Isotopic composition of maize as related to N-fertilization and irrigation in the Mediterranean region	en
dc.type	info:eu-repo/semantics/article	en
dc.type	Artículo / Artikulua	es
dc.type.version	info:eu-repo/semantics/publishedVersion	en
dc.type.version	Versión publicada / Argitaratu den bertsioa	es
dspace.entity.type	Publication
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