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
- Institución
- Instituto Nacional de Tecnología Agropecuaria
- OAI Identificador
- oai:localhost:20.500.12123/5463
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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/restrictedAccess2025-09-29T13:44:43Zoai: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:l2025-09-29 13:44:43.341INTA 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 |
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INTA Digital (INTA) |
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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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12.559606 |