Nitrogen deficiency in maize fields of the Southern Pampas does not affect kernel number but reduces weight per kernel

Autores
Moisés Domínguez, Clara; Andrade, Fernando Hector; Monzón, Juan Pablo; Reussi Calvo, Nahuel Ignacio; Cerrudo, Aníbal Alejandro
Año de publicación
2024
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Nitrogen (N) requirement of maize has been increasing over the past decades, but there has been a lack ofadjustment in fertilization management practices across different regions in Argentina. The higher N requirementin modern hybrids is associated with a higher post-flowering N accumulation. Additionally, soil fertility in theArgentina Pampas has consistently decreased in recent years. Whether the effects of N deficiency are expressed inthe post-flowering period is still unclear at field level. The objective of this work was to quantify the yieldreduction attributed to N deficiency and to identify the physiological basis of this effect at the field level fortypical high-tech farms across the south-eastern Pampas of Argentina. Nineteen experiments were conductedduring the 2020/2021 growing season in the south-eastern Pampas, evaluating two N managements i) Farmers’N level; ii) High N input. Results showed that the additional N input increased grain yield by an average of 6.4%(average grain yield difference of 712 kg ha− 1). Weight per kernel was the only yield component that respondedto N fertilization. Farmers’ N management did not affect N accumulation or growth-related variables such as leafarea index, green leaves per plant, PAR interception, nitrogen sufficiency index until flowering, but the farmers’N level reduced these variables during the grain filling period leading to differences in aerial biomass and Naccumulated at physiological maturity. Farmers’ N level led to decreased post-flowering N uptake during grainfilling period, which reduced the photosynthetic capacity of the canopy. These findings suggest that N management strategies and models need to be reviewed for high-tech maize systems.
EEA Balcarce
Fil: Moisés Domínguez, Clara. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; Argentina
Fil: Moisés Domínguez, Clara. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Andrade, Fernando Héctor. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina
Fil: Andrade, Fernando Héctor. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; Argentina
Fil: Andrade, Fernando Héctor. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Monzón, Juan Pablo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Monzón, Juan Pablo. University of Nebraska-Lincoln. Department of Agronomy and Horticulture; Estados Unidos
Fil: Reussi Calvo, Nahuel Ignacio. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; Argentina
Fil: Reussi Calvo, Nahuel Ignacio. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Cerrudo, Aníbal Alejandro. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina
Fil: Cerrudo, Aníbal Alejandro. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; Argentina
Fil: Cerrudo, Aníbal Alejandro. University of Minnesota. Department of Agronomy and Plant Genetics; Estados Unidos
Fuente
Field Crops Research 312 : 109394 (May 2024)
Materia
Nitrógeno
Maíz
Grano
Período de Crecimiento
Rendimiento
Nitrogen
Maize
Grain
Growth Period
Yields
Kernels
On-farm Research
Germen
Investigación en la Finca
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:20.500.12123/18572
Acceder
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oai_identifier_str oai:localhost:20.500.12123/18572
network_acronym_str INTADig
repository_id_str l
network_name_str INTA Digital (INTA)
spelling Nitrogen deficiency in maize fields of the Southern Pampas does not affect kernel number but reduces weight per kernelMoisés Domínguez, ClaraAndrade, Fernando HectorMonzón, Juan PabloReussi Calvo, Nahuel IgnacioCerrudo, Aníbal AlejandroNitrógenoMaízGranoPeríodo de CrecimientoRendimientoNitrogenMaizeGrainGrowth PeriodYieldsKernelsOn-farm ResearchGermenInvestigación en la FincaNitrogen (N) requirement of maize has been increasing over the past decades, but there has been a lack ofadjustment in fertilization management practices across different regions in Argentina. The higher N requirementin modern hybrids is associated with a higher post-flowering N accumulation. Additionally, soil fertility in theArgentina Pampas has consistently decreased in recent years. Whether the effects of N deficiency are expressed inthe post-flowering period is still unclear at field level. The objective of this work was to quantify the yieldreduction attributed to N deficiency and to identify the physiological basis of this effect at the field level fortypical high-tech farms across the south-eastern Pampas of Argentina. Nineteen experiments were conductedduring the 2020/2021 growing season in the south-eastern Pampas, evaluating two N managements i) Farmers’N level; ii) High N input. Results showed that the additional N input increased grain yield by an average of 6.4%(average grain yield difference of 712 kg ha− 1). Weight per kernel was the only yield component that respondedto N fertilization. Farmers’ N management did not affect N accumulation or growth-related variables such as leafarea index, green leaves per plant, PAR interception, nitrogen sufficiency index until flowering, but the farmers’N level reduced these variables during the grain filling period leading to differences in aerial biomass and Naccumulated at physiological maturity. Farmers’ N level led to decreased post-flowering N uptake during grainfilling period, which reduced the photosynthetic capacity of the canopy. These findings suggest that N management strategies and models need to be reviewed for high-tech maize systems.EEA BalcarceFil: Moisés Domínguez, Clara. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; ArgentinaFil: Moisés Domínguez, Clara. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Andrade, Fernando Héctor. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; ArgentinaFil: Andrade, Fernando Héctor. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; ArgentinaFil: Andrade, Fernando Héctor. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Monzón, Juan Pablo. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Monzón, Juan Pablo. University of Nebraska-Lincoln. Department of Agronomy and Horticulture; Estados UnidosFil: Reussi Calvo, Nahuel Ignacio. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; ArgentinaFil: Reussi Calvo, Nahuel Ignacio. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Cerrudo, Aníbal Alejandro. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; ArgentinaFil: Cerrudo, Aníbal Alejandro. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; ArgentinaFil: Cerrudo, Aníbal Alejandro. University of Minnesota. Department of Agronomy and Plant Genetics; Estados UnidosElsevier2024-07-19T10:39:07Z2024-07-19T10:39:07Z2024-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://hdl.handle.net/20.500.12123/18572https://www.sciencedirect.com/science/article/abs/pii/S03784290240014730378-4290https://doi.org/10.1016/j.fcr.2024.109394Field Crops Research 312 : 109394 (May 2024)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)2025-10-16T09:31:44Zoai:localhost:20.500.12123/18572instacron:INTAInstitucionalhttp://repositorio.inta.gob.ar/Organismo científico-tecnológicoNo correspondehttp://repositorio.inta.gob.ar/oai/requesttripaldi.nicolas@inta.gob.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:l2025-10-16 09:31:45.565INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuariafalse
dc.title.none.fl_str_mv Nitrogen deficiency in maize fields of the Southern Pampas does not affect kernel number but reduces weight per kernel
title Nitrogen deficiency in maize fields of the Southern Pampas does not affect kernel number but reduces weight per kernel
spellingShingle Nitrogen deficiency in maize fields of the Southern Pampas does not affect kernel number but reduces weight per kernel
Moisés Domínguez, Clara
Nitrógeno
Maíz
Grano
Período de Crecimiento
Rendimiento
Nitrogen
Maize
Grain
Growth Period
Yields
Kernels
On-farm Research
Germen
Investigación en la Finca
title_short Nitrogen deficiency in maize fields of the Southern Pampas does not affect kernel number but reduces weight per kernel
title_full Nitrogen deficiency in maize fields of the Southern Pampas does not affect kernel number but reduces weight per kernel
title_fullStr Nitrogen deficiency in maize fields of the Southern Pampas does not affect kernel number but reduces weight per kernel
title_full_unstemmed Nitrogen deficiency in maize fields of the Southern Pampas does not affect kernel number but reduces weight per kernel
title_sort Nitrogen deficiency in maize fields of the Southern Pampas does not affect kernel number but reduces weight per kernel
dc.creator.none.fl_str_mv Moisés Domínguez, Clara
Andrade, Fernando Hector
Monzón, Juan Pablo
Reussi Calvo, Nahuel Ignacio
Cerrudo, Aníbal Alejandro
author Moisés Domínguez, Clara
author_facet Moisés Domínguez, Clara
Andrade, Fernando Hector
Monzón, Juan Pablo
Reussi Calvo, Nahuel Ignacio
Cerrudo, Aníbal Alejandro
author_role author
author2 Andrade, Fernando Hector
Monzón, Juan Pablo
Reussi Calvo, Nahuel Ignacio
Cerrudo, Aníbal Alejandro
author2_role author
author
author
author
dc.subject.none.fl_str_mv Nitrógeno
Maíz
Grano
Período de Crecimiento
Rendimiento
Nitrogen
Maize
Grain
Growth Period
Yields
Kernels
On-farm Research
Germen
Investigación en la Finca
topic Nitrógeno
Maíz
Grano
Período de Crecimiento
Rendimiento
Nitrogen
Maize
Grain
Growth Period
Yields
Kernels
On-farm Research
Germen
Investigación en la Finca
dc.description.none.fl_txt_mv Nitrogen (N) requirement of maize has been increasing over the past decades, but there has been a lack ofadjustment in fertilization management practices across different regions in Argentina. The higher N requirementin modern hybrids is associated with a higher post-flowering N accumulation. Additionally, soil fertility in theArgentina Pampas has consistently decreased in recent years. Whether the effects of N deficiency are expressed inthe post-flowering period is still unclear at field level. The objective of this work was to quantify the yieldreduction attributed to N deficiency and to identify the physiological basis of this effect at the field level fortypical high-tech farms across the south-eastern Pampas of Argentina. Nineteen experiments were conductedduring the 2020/2021 growing season in the south-eastern Pampas, evaluating two N managements i) Farmers’N level; ii) High N input. Results showed that the additional N input increased grain yield by an average of 6.4%(average grain yield difference of 712 kg ha− 1). Weight per kernel was the only yield component that respondedto N fertilization. Farmers’ N management did not affect N accumulation or growth-related variables such as leafarea index, green leaves per plant, PAR interception, nitrogen sufficiency index until flowering, but the farmers’N level reduced these variables during the grain filling period leading to differences in aerial biomass and Naccumulated at physiological maturity. Farmers’ N level led to decreased post-flowering N uptake during grainfilling period, which reduced the photosynthetic capacity of the canopy. These findings suggest that N management strategies and models need to be reviewed for high-tech maize systems.
EEA Balcarce
Fil: Moisés Domínguez, Clara. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; Argentina
Fil: Moisés Domínguez, Clara. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Andrade, Fernando Héctor. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina
Fil: Andrade, Fernando Héctor. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; Argentina
Fil: Andrade, Fernando Héctor. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Monzón, Juan Pablo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Monzón, Juan Pablo. University of Nebraska-Lincoln. Department of Agronomy and Horticulture; Estados Unidos
Fil: Reussi Calvo, Nahuel Ignacio. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; Argentina
Fil: Reussi Calvo, Nahuel Ignacio. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Cerrudo, Aníbal Alejandro. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina
Fil: Cerrudo, Aníbal Alejandro. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; Argentina
Fil: Cerrudo, Aníbal Alejandro. University of Minnesota. Department of Agronomy and Plant Genetics; Estados Unidos
description Nitrogen (N) requirement of maize has been increasing over the past decades, but there has been a lack ofadjustment in fertilization management practices across different regions in Argentina. The higher N requirementin modern hybrids is associated with a higher post-flowering N accumulation. Additionally, soil fertility in theArgentina Pampas has consistently decreased in recent years. Whether the effects of N deficiency are expressed inthe post-flowering period is still unclear at field level. The objective of this work was to quantify the yieldreduction attributed to N deficiency and to identify the physiological basis of this effect at the field level fortypical high-tech farms across the south-eastern Pampas of Argentina. Nineteen experiments were conductedduring the 2020/2021 growing season in the south-eastern Pampas, evaluating two N managements i) Farmers’N level; ii) High N input. Results showed that the additional N input increased grain yield by an average of 6.4%(average grain yield difference of 712 kg ha− 1). Weight per kernel was the only yield component that respondedto N fertilization. Farmers’ N management did not affect N accumulation or growth-related variables such as leafarea index, green leaves per plant, PAR interception, nitrogen sufficiency index until flowering, but the farmers’N level reduced these variables during the grain filling period leading to differences in aerial biomass and Naccumulated at physiological maturity. Farmers’ N level led to decreased post-flowering N uptake during grainfilling period, which reduced the photosynthetic capacity of the canopy. These findings suggest that N management strategies and models need to be reviewed for high-tech maize systems.
publishDate 2024
dc.date.none.fl_str_mv 2024-07-19T10:39:07Z
2024-07-19T10:39:07Z
2024-05
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/20.500.12123/18572
https://www.sciencedirect.com/science/article/abs/pii/S0378429024001473
0378-4290
https://doi.org/10.1016/j.fcr.2024.109394
url http://hdl.handle.net/20.500.12123/18572
https://www.sciencedirect.com/science/article/abs/pii/S0378429024001473
https://doi.org/10.1016/j.fcr.2024.109394
identifier_str_mv 0378-4290
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 Field Crops Research 312 : 109394 (May 2024)
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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