Contrasting effects of phosphorus and potassium deficiencies on leaf area development in maize

Autores
Arias Usandivaras, Luis María; Gutierrez Boem, Flavio Hernán; Salvagiotti, Fernando
Año de publicación
2018
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Management of P and K in agricultural systems is similar, since both move mainly by diffusion in soil. In maize (Zea mays L.), radiation capture is a consequence primarily of leaf area formation and senescence, but little is known about P and K interaction in determining both variables. The objective of this study was to assess the effects of P, K, and P × K interaction on (i) leaf appearance rate and final leaf number, (ii) individual leaf area, (iii) leaf senescence rate, and (iv) leaf area development in maize. Two field experiments were performed in the 2011–2012 and 2012–2013 growing seasons, under no water and N limitations. Treatments consisted of different levels of P and K fertilization. Differential effects of both nutrients occurred for leaf area formation and senescence. Phosphorus deficiencies decreased average leaf appearance rate by 10% and individual leaf area by 18%, whereas K deficiency reduction of individual leaf area was 14%. Final leaf number did not change under both P and K deficiency. Phosphorus deficiencies decreased leaf senescence rate by 2%, whereas K deficiencies accelerated this process by 12%. As the result of the counteracting processes of expansion and senescence, P deficiency effects on green leaf area index were larger at the beginning of the crop cycle and tended to attenuate after, whereas K deficiencies were more important in later stages. These results may help in modeling the effects of P and K shortage in maize.
EEA Oliveros
Fil: Usandivaras, Luis María Arias. Lares. Consultoría General de Cultivos; Argentina
Fil: Gutiérrez Boem, Flavio Hernán. Universidad de Buenos Aires. Facultad de Agronomía. Cátedra de Fertilidad y Fertilizantes; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Pque. Centenario. Instituto de Investigaciones En Biociencias Agrícolas y Ambientales. Universidad de Buenos Aires. Facultad de Agronomia. Instituto de Investigaciones En Biociencias Agrícolas y Ambientales; Argentina
Fil: Salvagiotti, Fernando. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Oliveros. Departamento de Agronomía; Argentina
Fuente
Crop Science 58 (5) : 2099-2109 (2018)
Materia
Maíz
Fósforo
Potasio
Superficie Foliar
Etapas de Desarrollo de la Planta
Maize
Phosphorus
Potassium
Leaf Area
Plant Developmental Stages
Nivel de accesibilidad
acceso restringido
Condiciones de uso
Repositorio
INTA Digital (INTA)
Institución
Instituto Nacional de Tecnología Agropecuaria
OAI Identificador
oai:localhost:20.500.12123/5463
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spelling Contrasting effects of phosphorus and potassium deficiencies on leaf area development in maizeArias Usandivaras, Luis MaríaGutierrez Boem, Flavio HernánSalvagiotti, FernandoMaízFósforoPotasioSuperficie FoliarEtapas de Desarrollo de la PlantaMaizePhosphorusPotassiumLeaf AreaPlant Developmental StagesManagement of P and K in agricultural systems is similar, since both move mainly by diffusion in soil. In maize (Zea mays L.), radiation capture is a consequence primarily of leaf area formation and senescence, but little is known about P and K interaction in determining both variables. The objective of this study was to assess the effects of P, K, and P × K interaction on (i) leaf appearance rate and final leaf number, (ii) individual leaf area, (iii) leaf senescence rate, and (iv) leaf area development in maize. Two field experiments were performed in the 2011–2012 and 2012–2013 growing seasons, under no water and N limitations. Treatments consisted of different levels of P and K fertilization. Differential effects of both nutrients occurred for leaf area formation and senescence. Phosphorus deficiencies decreased average leaf appearance rate by 10% and individual leaf area by 18%, whereas K deficiency reduction of individual leaf area was 14%. Final leaf number did not change under both P and K deficiency. Phosphorus deficiencies decreased leaf senescence rate by 2%, whereas K deficiencies accelerated this process by 12%. As the result of the counteracting processes of expansion and senescence, P deficiency effects on green leaf area index were larger at the beginning of the crop cycle and tended to attenuate after, whereas K deficiencies were more important in later stages. These results may help in modeling the effects of P and K shortage in maize.EEA OliverosFil: Usandivaras, Luis María Arias. Lares. Consultoría General de Cultivos; ArgentinaFil: Gutiérrez Boem, Flavio Hernán. Universidad de Buenos Aires. Facultad de Agronomía. Cátedra de Fertilidad y Fertilizantes; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Pque. Centenario. Instituto de Investigaciones En Biociencias Agrícolas y Ambientales. Universidad de Buenos Aires. Facultad de Agronomia. Instituto de Investigaciones En Biociencias Agrícolas y Ambientales; ArgentinaFil: Salvagiotti, Fernando. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Oliveros. Departamento de Agronomía; ArgentinaCrop Science Society of America2019-07-10T14:13:39Z2019-07-10T14:13:39Z2018-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttps://dl.sciencesocieties.org/publications/cs/abstracts/58/5/2099http://hdl.handle.net/20.500.12123/54630011-183X1435-0653https://doi.org/10.2135/cropsci2018.02.0092Crop Science 58 (5) : 2099-2109 (2018)reponame:INTA Digital (INTA)instname:Instituto Nacional de Tecnología Agropecuariaenginfo:eu-repo/semantics/restrictedAccess2025-10-23T11:17:00Zoai:localhost:20.500.12123/5463instacron:INTAInstitucionalhttp://repositorio.inta.gob.ar/Organismo científico-tecnológicoNo correspondehttp://repositorio.inta.gob.ar/oai/requesttripaldi.nicolas@inta.gob.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:l2025-10-23 11:17:00.632INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuariafalse
dc.title.none.fl_str_mv Contrasting effects of phosphorus and potassium deficiencies on leaf area development in maize
title Contrasting effects of phosphorus and potassium deficiencies on leaf area development in maize
spellingShingle Contrasting effects of phosphorus and potassium deficiencies on leaf area development in maize
Arias Usandivaras, Luis María
Maíz
Fósforo
Potasio
Superficie Foliar
Etapas de Desarrollo de la Planta
Maize
Phosphorus
Potassium
Leaf Area
Plant Developmental Stages
title_short Contrasting effects of phosphorus and potassium deficiencies on leaf area development in maize
title_full Contrasting effects of phosphorus and potassium deficiencies on leaf area development in maize
title_fullStr Contrasting effects of phosphorus and potassium deficiencies on leaf area development in maize
title_full_unstemmed Contrasting effects of phosphorus and potassium deficiencies on leaf area development in maize
title_sort Contrasting effects of phosphorus and potassium deficiencies on leaf area development in maize
dc.creator.none.fl_str_mv Arias Usandivaras, Luis María
Gutierrez Boem, Flavio Hernán
Salvagiotti, Fernando
author Arias Usandivaras, Luis María
author_facet Arias Usandivaras, Luis María
Gutierrez Boem, Flavio Hernán
Salvagiotti, Fernando
author_role author
author2 Gutierrez Boem, Flavio Hernán
Salvagiotti, Fernando
author2_role author
author
dc.subject.none.fl_str_mv Maíz
Fósforo
Potasio
Superficie Foliar
Etapas de Desarrollo de la Planta
Maize
Phosphorus
Potassium
Leaf Area
Plant Developmental Stages
topic Maíz
Fósforo
Potasio
Superficie Foliar
Etapas de Desarrollo de la Planta
Maize
Phosphorus
Potassium
Leaf Area
Plant Developmental Stages
dc.description.none.fl_txt_mv Management of P and K in agricultural systems is similar, since both move mainly by diffusion in soil. In maize (Zea mays L.), radiation capture is a consequence primarily of leaf area formation and senescence, but little is known about P and K interaction in determining both variables. The objective of this study was to assess the effects of P, K, and P × K interaction on (i) leaf appearance rate and final leaf number, (ii) individual leaf area, (iii) leaf senescence rate, and (iv) leaf area development in maize. Two field experiments were performed in the 2011–2012 and 2012–2013 growing seasons, under no water and N limitations. Treatments consisted of different levels of P and K fertilization. Differential effects of both nutrients occurred for leaf area formation and senescence. Phosphorus deficiencies decreased average leaf appearance rate by 10% and individual leaf area by 18%, whereas K deficiency reduction of individual leaf area was 14%. Final leaf number did not change under both P and K deficiency. Phosphorus deficiencies decreased leaf senescence rate by 2%, whereas K deficiencies accelerated this process by 12%. As the result of the counteracting processes of expansion and senescence, P deficiency effects on green leaf area index were larger at the beginning of the crop cycle and tended to attenuate after, whereas K deficiencies were more important in later stages. These results may help in modeling the effects of P and K shortage in maize.
EEA Oliveros
Fil: Usandivaras, Luis María Arias. Lares. Consultoría General de Cultivos; Argentina
Fil: Gutiérrez Boem, Flavio Hernán. Universidad de Buenos Aires. Facultad de Agronomía. Cátedra de Fertilidad y Fertilizantes; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Pque. Centenario. Instituto de Investigaciones En Biociencias Agrícolas y Ambientales. Universidad de Buenos Aires. Facultad de Agronomia. Instituto de Investigaciones En Biociencias Agrícolas y Ambientales; Argentina
Fil: Salvagiotti, Fernando. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Oliveros. Departamento de Agronomía; Argentina
description Management of P and K in agricultural systems is similar, since both move mainly by diffusion in soil. In maize (Zea mays L.), radiation capture is a consequence primarily of leaf area formation and senescence, but little is known about P and K interaction in determining both variables. The objective of this study was to assess the effects of P, K, and P × K interaction on (i) leaf appearance rate and final leaf number, (ii) individual leaf area, (iii) leaf senescence rate, and (iv) leaf area development in maize. Two field experiments were performed in the 2011–2012 and 2012–2013 growing seasons, under no water and N limitations. Treatments consisted of different levels of P and K fertilization. Differential effects of both nutrients occurred for leaf area formation and senescence. Phosphorus deficiencies decreased average leaf appearance rate by 10% and individual leaf area by 18%, whereas K deficiency reduction of individual leaf area was 14%. Final leaf number did not change under both P and K deficiency. Phosphorus deficiencies decreased leaf senescence rate by 2%, whereas K deficiencies accelerated this process by 12%. As the result of the counteracting processes of expansion and senescence, P deficiency effects on green leaf area index were larger at the beginning of the crop cycle and tended to attenuate after, whereas K deficiencies were more important in later stages. These results may help in modeling the effects of P and K shortage in maize.
publishDate 2018
dc.date.none.fl_str_mv 2018-10
2019-07-10T14:13:39Z
2019-07-10T14:13:39Z
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 https://dl.sciencesocieties.org/publications/cs/abstracts/58/5/2099
http://hdl.handle.net/20.500.12123/5463
0011-183X
1435-0653
https://doi.org/10.2135/cropsci2018.02.0092
url https://dl.sciencesocieties.org/publications/cs/abstracts/58/5/2099
http://hdl.handle.net/20.500.12123/5463
https://doi.org/10.2135/cropsci2018.02.0092
identifier_str_mv 0011-183X
1435-0653
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 Crop Science Society of America
publisher.none.fl_str_mv Crop Science Society of America
dc.source.none.fl_str_mv Crop Science 58 (5) : 2099-2109 (2018)
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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score 12.982451

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