Nitrogen Application in Irrigated Rice Grown in Mediterranean Conditions: Effects on Grain Yield, Dry Matter Production, Nitrogen Uptake, and Nitrogen Use Efficiency

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dc.contributor.authorArtacho, Pamela
dc.contributor.authorBonomelli, Claudia
dc.contributor.authorMeza, Francisco
dc.date.accessioned2024-01-10T13:15:33Z
dc.date.available2024-01-10T13:15:33Z
dc.date.issued2009
dc.description.abstractField experiments were conducted in the major rice growing area of Chile to evaluate the effects of nitrogen (N) fertilization and site on grain yield and some yield components, dry matter production, N uptake, and N use efficiency in rice cultivar 'Diamante'. Two sites (indicated as sites 1 and 2) and six N rates (0, 50, 100, 150, 200, and 300 kg N ha-1) were compared. Nitrogen fertilization increased yield, panicle density, spikelet sterility, dry matter production, and N uptake at maturity. 90% of maximum yield was obtained with 200 kg N ha-1 in site 1 (12,810 kg ha-1) and with 100 kg N ha-1 in site 2 (8,000 kg ha-1). These differences were explained by lower panicle density, and the resulting lower dry matter production and N uptake in site 2. Nitrogen use efficiency for biomass and grain production, and grain yield per unit of grain N decreased with N fertilization. While, agronomic N use efficiency and N harvest index were not affected. All N use efficiency indices were significantly higher in site 1, except grain yield per unit of grain N. The observed variation in N use efficiency indices between sites would reflect site-specific differences in temperature and solar radiation, which in turn, determined yield potentials of each site. On the basis of these results, cultivar 'Diamante' would correspond to a high-N use efficiency genotype for grain yield.
dc.description.funderPrograma de Desarrollo de Proveedores
dc.description.funderPontificia Universidad Catolica de Chile
dc.fechaingreso.objetodigital2024-05-08
dc.format.extent20 páginas
dc.fuente.origenWOS
dc.identifier.doi10.1080/01904160903094339
dc.identifier.eissn1532-4087
dc.identifier.issn0190-4167
dc.identifier.urihttps://doi.org/10.1080/01904160903094339
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/78510
dc.identifier.wosidWOS:000268705900013
dc.information.autorucAgronomía e Ing. Forestal;Artacho P;S/I;160260
dc.information.autorucAgronomía e Ing. Forestal;Bonomelli C;S/I;51457
dc.information.autorucAgronomía e Ing. Forestal;Meza F;S/I;86534
dc.issue.numero9
dc.language.isoen
dc.nota.accesocontenido parcial
dc.pagina.final1593
dc.pagina.inicio1574
dc.publisherTAYLOR & FRANCIS INC
dc.revistaJOURNAL OF PLANT NUTRITION
dc.rightsacceso restringido
dc.subjectirrigated rice
dc.subjectnitrogen use efficiency
dc.subjectdry matter production
dc.subjectnitrogen uptake
dc.subjectMediterranean conditions
dc.subjectChile
dc.subjectLOWLAND RICE
dc.subjectMANAGEMENT
dc.subjectPERFORMANCE
dc.subjectCULTIVARS
dc.subjectSYSTEMS
dc.subjectWHEAT
dc.subject.ods13 Climate Action
dc.subject.ods02 Zero Hunger
dc.subject.odspa13 Acción por el clima
dc.subject.odspa02 Hambre cero
dc.titleNitrogen Application in Irrigated Rice Grown in Mediterranean Conditions: Effects on Grain Yield, Dry Matter Production, Nitrogen Uptake, and Nitrogen Use Efficiency
dc.typeartículo
dc.volumen32
sipa.codpersvinculados160260
sipa.codpersvinculados51457
sipa.codpersvinculados86534
sipa.indexWOS
sipa.indexScopus
sipa.trazabilidadCarga SIPA;09-01-2024
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