Regional model for nitrogen fertilization of site-specific rainfed corn in haplustolls of the central Pampas, Argentina

Autores
Gregoret, María Celeste; Diaz Zorita, Martin; Dardanelli, Julio Luis; Bongiovanni, Rodolfo
Año de publicación
2011
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
In semi-arid regions, soil water and nitrogen (N) are generally limiting factors for corn (Zea mays L.) production; hence, implementation of appropriate N fertilization strategies is needed. The use of precision agriculture practices based on specific site and crop properties may contribute to a better allocation of fertilizer among management zones (MZ). The aim of this study was to develop a model for diagnosis of N availability and recommendation of N fertilizer rates adjusted to MZ for dryland corn crops growing in Haplustolls. The model considered variability between MZ by including site-specific variables [soil available water content at sowing (SAW) and Available Nitrogen (soil available N-NO3 at planting + applied N, Nd)] using spatial statistical analysis. The study was conducted in Córdoba, Argentina in Haplustolls and consisted in four field trials of N fertilizer (range 0–161 kg N ha−1) in each MZ. The MZ were selected based on elevation maps analysis. Grain yields varied between MZ and increased with larger SAW and Nd at sowing. Grain responses to Nd and SAW in any MZ were not different between sites, allowing to fit a regional model whose parameters (Nd, Nd2, SAW, SAW2) contributed significantly (p < 0.001) to yield prediction. Agronomical and economically optimum N rates varied among MZs. However, the spatial variability of optimum N rates among MZs within sites was not enough to recommend variable N fertilizer rates instead of a uniform rate. Variable N fertilizer rates should be recommended only if variability in SAW and soil N among MZ is greater than that found in this work.
EEA Manfredi
Fil: Gregoret, María Celeste. Asociación Argentina de Consorcios Regionales de Experimentación Agrícola; Argentina
Fil: Diaz Zorita, Martin. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Agronomía; Argentina. Merck Crop Bioscience Argentina; Argentina
Fil: Dardanelli, Julio Luis. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Manfredi; Argentina
Fil: Bongiovanni, Rodolfo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Manfredi; Argentina
Fuente
Precision Agriculture 12 : 831 (December 2011)
Materia
Aplicación de Abonos
Abonos Nitrogenados
Tipos de Suelos
Maíz
Cultivo de Temporal
Fertilizer Application
Nitrogen Fertilizers
Soil Types
Site Specific Nutrient Management
Maize
Rainfed Farming
Haplustolls
Haplustoles
Fertilización NItrogenada
Región Pampeana
Nivel de accesibilidad
acceso restringido
Condiciones de uso
Repositorio
INTA Digital (INTA)
Institución
Instituto Nacional de Tecnología Agropecuaria
OAI Identificador
oai:localhost:20.500.12123/5641
Acceder
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oai_identifier_str oai:localhost:20.500.12123/5641
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network_name_str INTA Digital (INTA)
spelling Regional model for nitrogen fertilization of site-specific rainfed corn in haplustolls of the central Pampas, ArgentinaGregoret, María CelesteDiaz Zorita, MartinDardanelli, Julio LuisBongiovanni, RodolfoAplicación de AbonosAbonos NitrogenadosTipos de SuelosMaízCultivo de TemporalFertilizer ApplicationNitrogen FertilizersSoil TypesSite Specific Nutrient ManagementMaizeRainfed FarmingHaplustollsHaplustolesFertilización NItrogenadaRegión PampeanaIn semi-arid regions, soil water and nitrogen (N) are generally limiting factors for corn (Zea mays L.) production; hence, implementation of appropriate N fertilization strategies is needed. The use of precision agriculture practices based on specific site and crop properties may contribute to a better allocation of fertilizer among management zones (MZ). The aim of this study was to develop a model for diagnosis of N availability and recommendation of N fertilizer rates adjusted to MZ for dryland corn crops growing in Haplustolls. The model considered variability between MZ by including site-specific variables [soil available water content at sowing (SAW) and Available Nitrogen (soil available N-NO3 at planting + applied N, Nd)] using spatial statistical analysis. The study was conducted in Córdoba, Argentina in Haplustolls and consisted in four field trials of N fertilizer (range 0–161 kg N ha−1) in each MZ. The MZ were selected based on elevation maps analysis. Grain yields varied between MZ and increased with larger SAW and Nd at sowing. Grain responses to Nd and SAW in any MZ were not different between sites, allowing to fit a regional model whose parameters (Nd, Nd2, SAW, SAW2) contributed significantly (p < 0.001) to yield prediction. Agronomical and economically optimum N rates varied among MZs. However, the spatial variability of optimum N rates among MZs within sites was not enough to recommend variable N fertilizer rates instead of a uniform rate. Variable N fertilizer rates should be recommended only if variability in SAW and soil N among MZ is greater than that found in this work.EEA ManfrediFil: Gregoret, María Celeste. Asociación Argentina de Consorcios Regionales de Experimentación Agrícola; ArgentinaFil: Diaz Zorita, Martin. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Agronomía; Argentina. Merck Crop Bioscience Argentina; ArgentinaFil: Dardanelli, Julio Luis. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Manfredi; ArgentinaFil: Bongiovanni, Rodolfo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Manfredi; ArgentinaSpringer2019-08-16T13:43:00Z2019-08-16T13:43:00Z2011-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://hdl.handle.net/20.500.12123/5641https://link.springer.com/article/10.1007/s11119-011-9224-71385-22561573-1618https://doi.org/10.1007/s11119-011-9224-7Precision Agriculture 12 : 831 (December 2011)reponame:INTA Digital (INTA)instname:Instituto Nacional de Tecnología Agropecuariaenginfo:eu-repo/semantics/restrictedAccess2025-09-29T13:44:44Zoai:localhost:20.500.12123/5641instacron:INTAInstitucionalhttp://repositorio.inta.gob.ar/Organismo científico-tecnológicoNo correspondehttp://repositorio.inta.gob.ar/oai/requesttripaldi.nicolas@inta.gob.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:l2025-09-29 13:44:44.354INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuariafalse
dc.title.none.fl_str_mv Regional model for nitrogen fertilization of site-specific rainfed corn in haplustolls of the central Pampas, Argentina
title Regional model for nitrogen fertilization of site-specific rainfed corn in haplustolls of the central Pampas, Argentina
spellingShingle Regional model for nitrogen fertilization of site-specific rainfed corn in haplustolls of the central Pampas, Argentina
Gregoret, María Celeste
Aplicación de Abonos
Abonos Nitrogenados
Tipos de Suelos
Maíz
Cultivo de Temporal
Fertilizer Application
Nitrogen Fertilizers
Soil Types
Site Specific Nutrient Management
Maize
Rainfed Farming
Haplustolls
Haplustoles
Fertilización NItrogenada
Región Pampeana
title_short Regional model for nitrogen fertilization of site-specific rainfed corn in haplustolls of the central Pampas, Argentina
title_full Regional model for nitrogen fertilization of site-specific rainfed corn in haplustolls of the central Pampas, Argentina
title_fullStr Regional model for nitrogen fertilization of site-specific rainfed corn in haplustolls of the central Pampas, Argentina
title_full_unstemmed Regional model for nitrogen fertilization of site-specific rainfed corn in haplustolls of the central Pampas, Argentina
title_sort Regional model for nitrogen fertilization of site-specific rainfed corn in haplustolls of the central Pampas, Argentina
dc.creator.none.fl_str_mv Gregoret, María Celeste
Diaz Zorita, Martin
Dardanelli, Julio Luis
Bongiovanni, Rodolfo
author Gregoret, María Celeste
author_facet Gregoret, María Celeste
Diaz Zorita, Martin
Dardanelli, Julio Luis
Bongiovanni, Rodolfo
author_role author
author2 Diaz Zorita, Martin
Dardanelli, Julio Luis
Bongiovanni, Rodolfo
author2_role author
author
author
dc.subject.none.fl_str_mv Aplicación de Abonos
Abonos Nitrogenados
Tipos de Suelos
Maíz
Cultivo de Temporal
Fertilizer Application
Nitrogen Fertilizers
Soil Types
Site Specific Nutrient Management
Maize
Rainfed Farming
Haplustolls
Haplustoles
Fertilización NItrogenada
Región Pampeana
topic Aplicación de Abonos
Abonos Nitrogenados
Tipos de Suelos
Maíz
Cultivo de Temporal
Fertilizer Application
Nitrogen Fertilizers
Soil Types
Site Specific Nutrient Management
Maize
Rainfed Farming
Haplustolls
Haplustoles
Fertilización NItrogenada
Región Pampeana
dc.description.none.fl_txt_mv In semi-arid regions, soil water and nitrogen (N) are generally limiting factors for corn (Zea mays L.) production; hence, implementation of appropriate N fertilization strategies is needed. The use of precision agriculture practices based on specific site and crop properties may contribute to a better allocation of fertilizer among management zones (MZ). The aim of this study was to develop a model for diagnosis of N availability and recommendation of N fertilizer rates adjusted to MZ for dryland corn crops growing in Haplustolls. The model considered variability between MZ by including site-specific variables [soil available water content at sowing (SAW) and Available Nitrogen (soil available N-NO3 at planting + applied N, Nd)] using spatial statistical analysis. The study was conducted in Córdoba, Argentina in Haplustolls and consisted in four field trials of N fertilizer (range 0–161 kg N ha−1) in each MZ. The MZ were selected based on elevation maps analysis. Grain yields varied between MZ and increased with larger SAW and Nd at sowing. Grain responses to Nd and SAW in any MZ were not different between sites, allowing to fit a regional model whose parameters (Nd, Nd2, SAW, SAW2) contributed significantly (p < 0.001) to yield prediction. Agronomical and economically optimum N rates varied among MZs. However, the spatial variability of optimum N rates among MZs within sites was not enough to recommend variable N fertilizer rates instead of a uniform rate. Variable N fertilizer rates should be recommended only if variability in SAW and soil N among MZ is greater than that found in this work.
EEA Manfredi
Fil: Gregoret, María Celeste. Asociación Argentina de Consorcios Regionales de Experimentación Agrícola; Argentina
Fil: Diaz Zorita, Martin. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Agronomía; Argentina. Merck Crop Bioscience Argentina; Argentina
Fil: Dardanelli, Julio Luis. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Manfredi; Argentina
Fil: Bongiovanni, Rodolfo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Manfredi; Argentina
description In semi-arid regions, soil water and nitrogen (N) are generally limiting factors for corn (Zea mays L.) production; hence, implementation of appropriate N fertilization strategies is needed. The use of precision agriculture practices based on specific site and crop properties may contribute to a better allocation of fertilizer among management zones (MZ). The aim of this study was to develop a model for diagnosis of N availability and recommendation of N fertilizer rates adjusted to MZ for dryland corn crops growing in Haplustolls. The model considered variability between MZ by including site-specific variables [soil available water content at sowing (SAW) and Available Nitrogen (soil available N-NO3 at planting + applied N, Nd)] using spatial statistical analysis. The study was conducted in Córdoba, Argentina in Haplustolls and consisted in four field trials of N fertilizer (range 0–161 kg N ha−1) in each MZ. The MZ were selected based on elevation maps analysis. Grain yields varied between MZ and increased with larger SAW and Nd at sowing. Grain responses to Nd and SAW in any MZ were not different between sites, allowing to fit a regional model whose parameters (Nd, Nd2, SAW, SAW2) contributed significantly (p < 0.001) to yield prediction. Agronomical and economically optimum N rates varied among MZs. However, the spatial variability of optimum N rates among MZs within sites was not enough to recommend variable N fertilizer rates instead of a uniform rate. Variable N fertilizer rates should be recommended only if variability in SAW and soil N among MZ is greater than that found in this work.
publishDate 2011
dc.date.none.fl_str_mv 2011-12
2019-08-16T13:43:00Z
2019-08-16T13:43:00Z
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/20.500.12123/5641
https://link.springer.com/article/10.1007/s11119-011-9224-7
1385-2256
1573-1618
https://doi.org/10.1007/s11119-011-9224-7
url http://hdl.handle.net/20.500.12123/5641
https://link.springer.com/article/10.1007/s11119-011-9224-7
https://doi.org/10.1007/s11119-011-9224-7
identifier_str_mv 1385-2256
1573-1618
dc.language.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/restrictedAccess
eu_rights_str_mv restrictedAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Springer
publisher.none.fl_str_mv Springer
dc.source.none.fl_str_mv Precision Agriculture 12 : 831 (December 2011)
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
_version_ 1844619136414515200
score 12.559606

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