Critical nitrogen concentration of annual ryegrass and tall fescue is not affected by phosphorus deficiency

Autores
Cuadro, Robin; Borrajo, Celina Ines; Marino, Maria Angelica; Cicore, Pablo Leandro; Hirigoyen, Andrés; Errecart, Pedro Manuel; Berone, German Dario; Lattanzi, Fernando Alfredo
Año de publicación
2026
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Nitrogen (N) and phosphorus (P) deficiencies commonly limit plant growth in agroecosystems. While critical N concentration (Nc) dilution curves are widely used to assess the N status of crops and pastures, it remains unclear whether Nc curves remain valid under P deficiency. This study assessed the effect of P deficiency on Nc curves. For this purpose, a factorial combination of several N and P fertilization rates was applied in nine field experiments during winter and spring on annual ryegrass (Lolium multiflorum L.) and tall fescue (L. arundinaceum (Schreb.) Darbysh.) pastures, at several sites in Uruguay and Argentina. Across sites, P deficiency did not alter Nc curves, a conclusion supported by both frequentist and Bayesian statistics. A corollary of the fact that Nc dilution curves are largely unaffected by P availability is that, for a given N nutritional status, reduced N uptake under P deficiency is mostly due to lower shoot biomass accumulation. Our results indicate that Nc dilution curves are largely unaffected by P availability across a range of edaphoclimatic conditions and reinforce their use as a reliable diagnostic.
EEA Cuenca del Salado
Fil: Cuadro, Robin. Instituto Nacional de Investigación Agropecuaria (INIA). Estación Experimental INIA Tacuarembó. Área de Pasturas y Forrajes; Uruguay
Fil: Borrajo, Celina Ines. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Cuenca del Salado; Argentina
Fil: Marino, Maria Angelica. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; Argentina
Fil: Cicore, Pablo Leandro. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina
Fil: Hirigoyen, Andrés. Instituto Nacional de Investigación Agropecuaria (INIA). Estación Experimental INIA Las Brujas. Sistema Forestal; Uruguay
Fil: Errecart, Pedro Manuel. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina
Fil: Berone, German Dario. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; Argentina
Fil: Berone, German Dario. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina
Fil: Lattanzi, Fernando Alfredo. Instituto Nacional de Investigación Agropecuaria (INIA). Estación Experimental INIA La Estanzuela. Área Pasturas y Forrajes; Uruguay
Fuente
European Journal of Agronomy 175 : 128028. (April 2026)
Materia
Lolium multiflorum
Nitrogen
Phosphorus
Nutrient Deficiencies
Fertilizer Application
Nitrógeno
Fósforo
Deficiencia Nutritiva
Aplicación de Abonos
Raigrás Anual
Festuca Alta
Lolium arundinaceum
Fertilización
Annual Rygrass
Tall Fescue
Nivel de accesibilidad
acceso restringido
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
INTA Digital (INTA)
Institución
Instituto Nacional de Tecnología Agropecuaria
OAI Identificador
oai:localhost:20.500.12123/25236
Acceder
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oai_identifier_str oai:localhost:20.500.12123/25236
network_acronym_str INTADig
repository_id_str l
network_name_str INTA Digital (INTA)
spelling Critical nitrogen concentration of annual ryegrass and tall fescue is not affected by phosphorus deficiencyCuadro, RobinBorrajo, Celina InesMarino, Maria AngelicaCicore, Pablo LeandroHirigoyen, AndrésErrecart, Pedro ManuelBerone, German DarioLattanzi, Fernando AlfredoLolium multiflorumNitrogenPhosphorusNutrient DeficienciesFertilizer ApplicationNitrógenoFósforoDeficiencia NutritivaAplicación de AbonosRaigrás AnualFestuca AltaLolium arundinaceumFertilizaciónAnnual RygrassTall FescueNitrogen (N) and phosphorus (P) deficiencies commonly limit plant growth in agroecosystems. While critical N concentration (Nc) dilution curves are widely used to assess the N status of crops and pastures, it remains unclear whether Nc curves remain valid under P deficiency. This study assessed the effect of P deficiency on Nc curves. For this purpose, a factorial combination of several N and P fertilization rates was applied in nine field experiments during winter and spring on annual ryegrass (Lolium multiflorum L.) and tall fescue (L. arundinaceum (Schreb.) Darbysh.) pastures, at several sites in Uruguay and Argentina. Across sites, P deficiency did not alter Nc curves, a conclusion supported by both frequentist and Bayesian statistics. A corollary of the fact that Nc dilution curves are largely unaffected by P availability is that, for a given N nutritional status, reduced N uptake under P deficiency is mostly due to lower shoot biomass accumulation. Our results indicate that Nc dilution curves are largely unaffected by P availability across a range of edaphoclimatic conditions and reinforce their use as a reliable diagnostic.EEA Cuenca del SaladoFil: Cuadro, Robin. Instituto Nacional de Investigación Agropecuaria (INIA). Estación Experimental INIA Tacuarembó. Área de Pasturas y Forrajes; UruguayFil: Borrajo, Celina Ines. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Cuenca del Salado; ArgentinaFil: Marino, Maria Angelica. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; ArgentinaFil: Cicore, Pablo Leandro. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; ArgentinaFil: Hirigoyen, Andrés. Instituto Nacional de Investigación Agropecuaria (INIA). Estación Experimental INIA Las Brujas. Sistema Forestal; UruguayFil: Errecart, Pedro Manuel. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; ArgentinaFil: Berone, German Dario. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; ArgentinaFil: Berone, German Dario. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; ArgentinaFil: Lattanzi, Fernando Alfredo. Instituto Nacional de Investigación Agropecuaria (INIA). Estación Experimental INIA La Estanzuela. Área Pasturas y Forrajes; UruguayElsevier2026-02-19T13:03:53Z2026-02-19T13:03:53Z2026-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://hdl.handle.net/20.500.12123/25236https://www.sciencedirect.com/science/article/abs/pii/S116103012600047X1161-03011873-7331https://doi.org/10.1016/j.eja.2026.128028European Journal of Agronomy 175 : 128028. (April 2026)reponame:INTA Digital (INTA)instname:Instituto Nacional de Tecnología Agropecuariaenginfo:eu-repo/semantics/restrictedAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)2026-02-26T11:47:42Zoai:localhost:20.500.12123/25236instacron:INTAInstitucionalhttp://repositorio.inta.gob.ar/Organismo científico-tecnológicoNo correspondehttp://repositorio.inta.gob.ar/oai/requesttripaldi.nicolas@inta.gob.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:l2026-02-26 11:47:42.788INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuariafalse
dc.title.none.fl_str_mv Critical nitrogen concentration of annual ryegrass and tall fescue is not affected by phosphorus deficiency
title Critical nitrogen concentration of annual ryegrass and tall fescue is not affected by phosphorus deficiency
spellingShingle Critical nitrogen concentration of annual ryegrass and tall fescue is not affected by phosphorus deficiency
Cuadro, Robin
Lolium multiflorum
Nitrogen
Phosphorus
Nutrient Deficiencies
Fertilizer Application
Nitrógeno
Fósforo
Deficiencia Nutritiva
Aplicación de Abonos
Raigrás Anual
Festuca Alta
Lolium arundinaceum
Fertilización
Annual Rygrass
Tall Fescue
title_short Critical nitrogen concentration of annual ryegrass and tall fescue is not affected by phosphorus deficiency
title_full Critical nitrogen concentration of annual ryegrass and tall fescue is not affected by phosphorus deficiency
title_fullStr Critical nitrogen concentration of annual ryegrass and tall fescue is not affected by phosphorus deficiency
title_full_unstemmed Critical nitrogen concentration of annual ryegrass and tall fescue is not affected by phosphorus deficiency
title_sort Critical nitrogen concentration of annual ryegrass and tall fescue is not affected by phosphorus deficiency
dc.creator.none.fl_str_mv Cuadro, Robin
Borrajo, Celina Ines
Marino, Maria Angelica
Cicore, Pablo Leandro
Hirigoyen, Andrés
Errecart, Pedro Manuel
Berone, German Dario
Lattanzi, Fernando Alfredo
author Cuadro, Robin
author_facet Cuadro, Robin
Borrajo, Celina Ines
Marino, Maria Angelica
Cicore, Pablo Leandro
Hirigoyen, Andrés
Errecart, Pedro Manuel
Berone, German Dario
Lattanzi, Fernando Alfredo
author_role author
author2 Borrajo, Celina Ines
Marino, Maria Angelica
Cicore, Pablo Leandro
Hirigoyen, Andrés
Errecart, Pedro Manuel
Berone, German Dario
Lattanzi, Fernando Alfredo
author2_role author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Lolium multiflorum
Nitrogen
Phosphorus
Nutrient Deficiencies
Fertilizer Application
Nitrógeno
Fósforo
Deficiencia Nutritiva
Aplicación de Abonos
Raigrás Anual
Festuca Alta
Lolium arundinaceum
Fertilización
Annual Rygrass
Tall Fescue
topic Lolium multiflorum
Nitrogen
Phosphorus
Nutrient Deficiencies
Fertilizer Application
Nitrógeno
Fósforo
Deficiencia Nutritiva
Aplicación de Abonos
Raigrás Anual
Festuca Alta
Lolium arundinaceum
Fertilización
Annual Rygrass
Tall Fescue
dc.description.none.fl_txt_mv Nitrogen (N) and phosphorus (P) deficiencies commonly limit plant growth in agroecosystems. While critical N concentration (Nc) dilution curves are widely used to assess the N status of crops and pastures, it remains unclear whether Nc curves remain valid under P deficiency. This study assessed the effect of P deficiency on Nc curves. For this purpose, a factorial combination of several N and P fertilization rates was applied in nine field experiments during winter and spring on annual ryegrass (Lolium multiflorum L.) and tall fescue (L. arundinaceum (Schreb.) Darbysh.) pastures, at several sites in Uruguay and Argentina. Across sites, P deficiency did not alter Nc curves, a conclusion supported by both frequentist and Bayesian statistics. A corollary of the fact that Nc dilution curves are largely unaffected by P availability is that, for a given N nutritional status, reduced N uptake under P deficiency is mostly due to lower shoot biomass accumulation. Our results indicate that Nc dilution curves are largely unaffected by P availability across a range of edaphoclimatic conditions and reinforce their use as a reliable diagnostic.
EEA Cuenca del Salado
Fil: Cuadro, Robin. Instituto Nacional de Investigación Agropecuaria (INIA). Estación Experimental INIA Tacuarembó. Área de Pasturas y Forrajes; Uruguay
Fil: Borrajo, Celina Ines. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Cuenca del Salado; Argentina
Fil: Marino, Maria Angelica. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; Argentina
Fil: Cicore, Pablo Leandro. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina
Fil: Hirigoyen, Andrés. Instituto Nacional de Investigación Agropecuaria (INIA). Estación Experimental INIA Las Brujas. Sistema Forestal; Uruguay
Fil: Errecart, Pedro Manuel. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina
Fil: Berone, German Dario. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; Argentina
Fil: Berone, German Dario. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina
Fil: Lattanzi, Fernando Alfredo. Instituto Nacional de Investigación Agropecuaria (INIA). Estación Experimental INIA La Estanzuela. Área Pasturas y Forrajes; Uruguay
description Nitrogen (N) and phosphorus (P) deficiencies commonly limit plant growth in agroecosystems. While critical N concentration (Nc) dilution curves are widely used to assess the N status of crops and pastures, it remains unclear whether Nc curves remain valid under P deficiency. This study assessed the effect of P deficiency on Nc curves. For this purpose, a factorial combination of several N and P fertilization rates was applied in nine field experiments during winter and spring on annual ryegrass (Lolium multiflorum L.) and tall fescue (L. arundinaceum (Schreb.) Darbysh.) pastures, at several sites in Uruguay and Argentina. Across sites, P deficiency did not alter Nc curves, a conclusion supported by both frequentist and Bayesian statistics. A corollary of the fact that Nc dilution curves are largely unaffected by P availability is that, for a given N nutritional status, reduced N uptake under P deficiency is mostly due to lower shoot biomass accumulation. Our results indicate that Nc dilution curves are largely unaffected by P availability across a range of edaphoclimatic conditions and reinforce their use as a reliable diagnostic.
publishDate 2026
dc.date.none.fl_str_mv 2026-02-19T13:03:53Z
2026-02-19T13:03:53Z
2026-04
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/20.500.12123/25236
https://www.sciencedirect.com/science/article/abs/pii/S116103012600047X
1161-0301
1873-7331
https://doi.org/10.1016/j.eja.2026.128028
url http://hdl.handle.net/20.500.12123/25236
https://www.sciencedirect.com/science/article/abs/pii/S116103012600047X
https://doi.org/10.1016/j.eja.2026.128028
identifier_str_mv 1161-0301
1873-7331
dc.language.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/restrictedAccess
http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
eu_rights_str_mv restrictedAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv European Journal of Agronomy 175 : 128028. (April 2026)
reponame:INTA Digital (INTA)
instname:Instituto Nacional de Tecnología Agropecuaria
reponame_str INTA Digital (INTA)
collection INTA Digital (INTA)
instname_str Instituto Nacional de Tecnología Agropecuaria
repository.name.fl_str_mv INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuaria
repository.mail.fl_str_mv tripaldi.nicolas@inta.gob.ar
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