Show simple item record

dc.creatorLasa Larrea, Bertaes_ES
dc.creatorIrañeta, Iosues_ES
dc.creatorMuro Erreguerena, Julioes_ES
dc.creatorIrigoyen Iriarte, Ignacioes_ES
dc.creatorAparicio Tejo, Pedro Maríaes_ES
dc.identifier.issn1678-992X (Electronic)
dc.description.abstractNitrate 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.sponsorshipThis study was supported by DGESIC-AGL2003-06571-CO2-01, Gobierno de Navarra Resolución 17/2004 and MICIN-AGL2006-12792-CO2-01.en
dc.format.extent9 p.
dc.publisherEscola Superior de Agricultura "Luiz de Queiroz", Universidade de São Paulopt
dc.relation.ispartofScientia Agricola, (Piracicaba, Braz.), v.68, n.2, p.182-190, March/April 2011pt
dc.rightsCreative Commons Attribution 4.0 International (CC BY 4.0)en
dc.subjectZea mays L.en
dc.subjectFurrow irrigationen
dc.subjectSprinkler irrigationen
dc.titleIsotopic composition of maize as related to N-fertilization and irrigation in the Mediterranean regionen
dc.typeArtículo / Artikuluaes
dc.contributor.departmentUniversidad Pública de Navarra. Departamento de Ciencias del Medio Naturales_ES
dc.contributor.departmentNafarroako Unibertsitate Publikoa. Natura Ingurunearen Zientziak Sailaeu
dc.contributor.departmentUniversidad Pública de Navarra. Departamento de Producción Agrariaes_ES
dc.contributor.departmentNafarroako Unibertsitate Publikoa. Nekazaritza Ekoizpena Sailaeu
dc.contributor.departmentUniversidad Pública de Navarra. Instituto de Agrobiotecnologíaes_ES
dc.contributor.departmentNafarroako Unibertsitate Publikoa. Agrobioteknologiako Institutuaeu
dc.rights.accessRightsAcceso abierto / Sarbide irekiaes
dc.type.versionVersión publicada / Argitaratu den bertsioaes
dc.contributor.funderGobierno de Navarra / Nafarroako Gobernua, 17/2004es

Files in this item


This item appears in the following Collection(s)

Show simple item record

Creative Commons Attribution 4.0 International (CC BY 4.0)
Except where otherwise noted, this item's license is described as Creative Commons Attribution 4.0 International (CC BY 4.0)