Maize management practices and its relationship with nitrogen indexes and yield

Autores
Martinez, Dionisio Roberto; Pietrobon, Marianela; Crespo, Cecilia; Stadler, Nicolás; Barbieri, Pablo
Año de publicación
2025
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Nitrogen fertilization usually increases maize yields, but its impact varies with water availability and plant density. Nitro¬gen indexes like chlorophyll meter readings may help to predict yield variations. Still, their effect has not been studied under contrasting plant densities, hybrids, and water availability conditions. This study aimed to analyze: (i) maize yield response to nitrogen fertilization across different planting densities and water conditions; (ii) the relationship between nitrogen indexes and yield and its components; and (iii) the effect of hybrids differing in their prolificacy on the relation¬ship between nitrogen indexes and yield. Two experiments (Exp A and Exp B) were conducted using nitrogen fertilization rates and plant densities, Exp A focused on water conditions (irrigation vs. rainfed), while Exp B compared three maize hybrids. The chlorophyll meter readings were determined at different stages. Also, biomass, grain yield, and its compo¬nents were assessed, and their nitrogen nutrition index was determined. Chlorophyll meter readings values were relativ¬ized to compare among the experiments to obtain nitrogen sufficiency index. Increased nitrogen availability consistently increased yield on average by 2599 kg ha− 1 across all plant densities. Changes in density affected nitrogen sufficiency indicators similarly to nitrogen rate variations and water conditions. Higher densities correlated with a 15% lower chloro¬phyll meter readings value. Nitrogen sufficiency index at R4 proved the best predictor of yield variations (R2 = 0.52) and showed a high correlation with nitrogen nutrition index (r = 0.90). Despite hybrids presenting yield differences in optimal densities, responses to nitrogen fertilization both in yield and its components were consistent across hybrids. Plant density induces variations in nitrogen sufficiency index of similar or greater magnitude than nitrogen rates towards. This trend is clearer at the end of the crop cycle that were reflected in similar trends in the nitrogen nutrition index at physiological maturity. Future nitrogen diagnostic methodologies should consider plant density effects on maize response to fertilization
EEA Balcarce
Fil: Martínez, Roberto Dionisio. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; Argentina
Fil: Pietrobon, Marianela. Universidad Nacional del Litoral. Facultad de Ciencias Agrarias; Argentina
Fil: Crespo, Cecilia. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; Argentina
Fil: Stadler, Nicolas. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; Argentina
Fil: Barbieri, Pablo Andrés. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce. Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible; Argentina.
Fil: Barbieri, Pablo Andrés. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible; Argentina
Fuente
Journal of Soil Science and Plant Nutrition (05 February 2025)
Materia
Maíz
Abonos Nitrogenados
Etapas de Desarrollo de la Planta
Rendimiento
Manejo del Cultivo
Disponibilidad del Agua
Maize
Nitrogen Fertilizers
Plant Developmental Stages
Yields
Water Availability
Crop Management
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:20.500.12123/21807
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oai_identifier_str oai:localhost:20.500.12123/21807
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network_name_str INTA Digital (INTA)
spelling Maize management practices and its relationship with nitrogen indexes and yieldMartinez, Dionisio RobertoPietrobon, MarianelaCrespo, CeciliaStadler, NicolásBarbieri, PabloMaízAbonos NitrogenadosEtapas de Desarrollo de la PlantaRendimientoManejo del CultivoDisponibilidad del AguaMaizeNitrogen FertilizersPlant Developmental StagesYieldsWater AvailabilityCrop ManagementNitrogen fertilization usually increases maize yields, but its impact varies with water availability and plant density. Nitro¬gen indexes like chlorophyll meter readings may help to predict yield variations. Still, their effect has not been studied under contrasting plant densities, hybrids, and water availability conditions. This study aimed to analyze: (i) maize yield response to nitrogen fertilization across different planting densities and water conditions; (ii) the relationship between nitrogen indexes and yield and its components; and (iii) the effect of hybrids differing in their prolificacy on the relation¬ship between nitrogen indexes and yield. Two experiments (Exp A and Exp B) were conducted using nitrogen fertilization rates and plant densities, Exp A focused on water conditions (irrigation vs. rainfed), while Exp B compared three maize hybrids. The chlorophyll meter readings were determined at different stages. Also, biomass, grain yield, and its compo¬nents were assessed, and their nitrogen nutrition index was determined. Chlorophyll meter readings values were relativ¬ized to compare among the experiments to obtain nitrogen sufficiency index. Increased nitrogen availability consistently increased yield on average by 2599 kg ha− 1 across all plant densities. Changes in density affected nitrogen sufficiency indicators similarly to nitrogen rate variations and water conditions. Higher densities correlated with a 15% lower chloro¬phyll meter readings value. Nitrogen sufficiency index at R4 proved the best predictor of yield variations (R2 = 0.52) and showed a high correlation with nitrogen nutrition index (r = 0.90). Despite hybrids presenting yield differences in optimal densities, responses to nitrogen fertilization both in yield and its components were consistent across hybrids. Plant density induces variations in nitrogen sufficiency index of similar or greater magnitude than nitrogen rates towards. This trend is clearer at the end of the crop cycle that were reflected in similar trends in the nitrogen nutrition index at physiological maturity. Future nitrogen diagnostic methodologies should consider plant density effects on maize response to fertilizationEEA BalcarceFil: Martínez, Roberto Dionisio. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; ArgentinaFil: Pietrobon, Marianela. Universidad Nacional del Litoral. Facultad de Ciencias Agrarias; ArgentinaFil: Crespo, Cecilia. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; ArgentinaFil: Stadler, Nicolas. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; ArgentinaFil: Barbieri, Pablo Andrés. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce. Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible; Argentina.Fil: Barbieri, Pablo Andrés. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible; ArgentinaSpinger2025-03-25T13:55:46Z2025-03-25T13:55:46Z2025-02-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://hdl.handle.net/20.500.12123/21807https://link.springer.com/article/10.1007/s42729-025-02282-60718-9516 (online)0718-9508 (print)https://doi.org/10.1007/s42729-025-02282-6Journal of Soil Science and Plant Nutrition (05 February 2025)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)2025-11-06T09:42:37Zoai:localhost:20.500.12123/21807instacron:INTAInstitucionalhttp://repositorio.inta.gob.ar/Organismo científico-tecnológicoNo correspondehttp://repositorio.inta.gob.ar/oai/requesttripaldi.nicolas@inta.gob.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:l2025-11-06 09:42:38.213INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuariafalse
dc.title.none.fl_str_mv Maize management practices and its relationship with nitrogen indexes and yield
title Maize management practices and its relationship with nitrogen indexes and yield
spellingShingle Maize management practices and its relationship with nitrogen indexes and yield
Martinez, Dionisio Roberto
Maíz
Abonos Nitrogenados
Etapas de Desarrollo de la Planta
Rendimiento
Manejo del Cultivo
Disponibilidad del Agua
Maize
Nitrogen Fertilizers
Plant Developmental Stages
Yields
Water Availability
Crop Management
title_short Maize management practices and its relationship with nitrogen indexes and yield
title_full Maize management practices and its relationship with nitrogen indexes and yield
title_fullStr Maize management practices and its relationship with nitrogen indexes and yield
title_full_unstemmed Maize management practices and its relationship with nitrogen indexes and yield
title_sort Maize management practices and its relationship with nitrogen indexes and yield
dc.creator.none.fl_str_mv Martinez, Dionisio Roberto
Pietrobon, Marianela
Crespo, Cecilia
Stadler, Nicolás
Barbieri, Pablo
author Martinez, Dionisio Roberto
author_facet Martinez, Dionisio Roberto
Pietrobon, Marianela
Crespo, Cecilia
Stadler, Nicolás
Barbieri, Pablo
author_role author
author2 Pietrobon, Marianela
Crespo, Cecilia
Stadler, Nicolás
Barbieri, Pablo
author2_role author
author
author
author
dc.subject.none.fl_str_mv Maíz
Abonos Nitrogenados
Etapas de Desarrollo de la Planta
Rendimiento
Manejo del Cultivo
Disponibilidad del Agua
Maize
Nitrogen Fertilizers
Plant Developmental Stages
Yields
Water Availability
Crop Management
topic Maíz
Abonos Nitrogenados
Etapas de Desarrollo de la Planta
Rendimiento
Manejo del Cultivo
Disponibilidad del Agua
Maize
Nitrogen Fertilizers
Plant Developmental Stages
Yields
Water Availability
Crop Management
dc.description.none.fl_txt_mv Nitrogen fertilization usually increases maize yields, but its impact varies with water availability and plant density. Nitro¬gen indexes like chlorophyll meter readings may help to predict yield variations. Still, their effect has not been studied under contrasting plant densities, hybrids, and water availability conditions. This study aimed to analyze: (i) maize yield response to nitrogen fertilization across different planting densities and water conditions; (ii) the relationship between nitrogen indexes and yield and its components; and (iii) the effect of hybrids differing in their prolificacy on the relation¬ship between nitrogen indexes and yield. Two experiments (Exp A and Exp B) were conducted using nitrogen fertilization rates and plant densities, Exp A focused on water conditions (irrigation vs. rainfed), while Exp B compared three maize hybrids. The chlorophyll meter readings were determined at different stages. Also, biomass, grain yield, and its compo¬nents were assessed, and their nitrogen nutrition index was determined. Chlorophyll meter readings values were relativ¬ized to compare among the experiments to obtain nitrogen sufficiency index. Increased nitrogen availability consistently increased yield on average by 2599 kg ha− 1 across all plant densities. Changes in density affected nitrogen sufficiency indicators similarly to nitrogen rate variations and water conditions. Higher densities correlated with a 15% lower chloro¬phyll meter readings value. Nitrogen sufficiency index at R4 proved the best predictor of yield variations (R2 = 0.52) and showed a high correlation with nitrogen nutrition index (r = 0.90). Despite hybrids presenting yield differences in optimal densities, responses to nitrogen fertilization both in yield and its components were consistent across hybrids. Plant density induces variations in nitrogen sufficiency index of similar or greater magnitude than nitrogen rates towards. This trend is clearer at the end of the crop cycle that were reflected in similar trends in the nitrogen nutrition index at physiological maturity. Future nitrogen diagnostic methodologies should consider plant density effects on maize response to fertilization
EEA Balcarce
Fil: Martínez, Roberto Dionisio. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; Argentina
Fil: Pietrobon, Marianela. Universidad Nacional del Litoral. Facultad de Ciencias Agrarias; Argentina
Fil: Crespo, Cecilia. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; Argentina
Fil: Stadler, Nicolas. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; Argentina
Fil: Barbieri, Pablo Andrés. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce. Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible; Argentina.
Fil: Barbieri, Pablo Andrés. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible; Argentina
description Nitrogen fertilization usually increases maize yields, but its impact varies with water availability and plant density. Nitro¬gen indexes like chlorophyll meter readings may help to predict yield variations. Still, their effect has not been studied under contrasting plant densities, hybrids, and water availability conditions. This study aimed to analyze: (i) maize yield response to nitrogen fertilization across different planting densities and water conditions; (ii) the relationship between nitrogen indexes and yield and its components; and (iii) the effect of hybrids differing in their prolificacy on the relation¬ship between nitrogen indexes and yield. Two experiments (Exp A and Exp B) were conducted using nitrogen fertilization rates and plant densities, Exp A focused on water conditions (irrigation vs. rainfed), while Exp B compared three maize hybrids. The chlorophyll meter readings were determined at different stages. Also, biomass, grain yield, and its compo¬nents were assessed, and their nitrogen nutrition index was determined. Chlorophyll meter readings values were relativ¬ized to compare among the experiments to obtain nitrogen sufficiency index. Increased nitrogen availability consistently increased yield on average by 2599 kg ha− 1 across all plant densities. Changes in density affected nitrogen sufficiency indicators similarly to nitrogen rate variations and water conditions. Higher densities correlated with a 15% lower chloro¬phyll meter readings value. Nitrogen sufficiency index at R4 proved the best predictor of yield variations (R2 = 0.52) and showed a high correlation with nitrogen nutrition index (r = 0.90). Despite hybrids presenting yield differences in optimal densities, responses to nitrogen fertilization both in yield and its components were consistent across hybrids. Plant density induces variations in nitrogen sufficiency index of similar or greater magnitude than nitrogen rates towards. This trend is clearer at the end of the crop cycle that were reflected in similar trends in the nitrogen nutrition index at physiological maturity. Future nitrogen diagnostic methodologies should consider plant density effects on maize response to fertilization
publishDate 2025
dc.date.none.fl_str_mv 2025-03-25T13:55:46Z
2025-03-25T13:55:46Z
2025-02-05
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/20.500.12123/21807
https://link.springer.com/article/10.1007/s42729-025-02282-6
0718-9516 (online)
0718-9508 (print)
https://doi.org/10.1007/s42729-025-02282-6
url http://hdl.handle.net/20.500.12123/21807
https://link.springer.com/article/10.1007/s42729-025-02282-6
https://doi.org/10.1007/s42729-025-02282-6
identifier_str_mv 0718-9516 (online)
0718-9508 (print)
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 Spinger
publisher.none.fl_str_mv Spinger
dc.source.none.fl_str_mv Journal of Soil Science and Plant Nutrition (05 February 2025)
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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