Leaf wettability is the main driver for foliar P uptake in P-deficient maize

Foliar fertilisation is an alternative form of nutrient application, which is of particular interest for phosphorus (P), where the efficiency of soil fertilisation is low. However, the uptake of foliar-applied nutrients is insuffi- ciently characterised. The aim of this study was to investigate the...

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Autores: Henningsen, Jon Niklas, Görlach, Bruno Maximilian, Quintero Ariza, José Manuel, Recena Garrido, Ramiro, Mühling, Karl Hermann, Fernández, Victoria
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2023
País:España
Institución:Universidad de Sevilla (US)
Repositorio:idUS. Depósito de Investigación de la Universidad de Sevilla
OAI Identifier:oai:idus.us.es:11441/166821
Acceso en línea:https://hdl.handle.net/11441/166821
https://doi.org/10.1016/j.plaphy.2023.108170
Access Level:acceso abierto
Palabra clave:Foliar P uptake
Leaf wettability
Maize cultivars
P deficiency
Point of efflorescence
Salt hygroscopicit
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spelling Leaf wettability is the main driver for foliar P uptake in P-deficient maizeHenningsen, Jon NiklasGörlach, Bruno MaximilianQuintero Ariza, José ManuelRecena Garrido, RamiroMühling, Karl HermannFernández, VictoriaFoliar P uptakeLeaf wettabilityMaize cultivarsP deficiencyPoint of efflorescenceSalt hygroscopicitFoliar fertilisation is an alternative form of nutrient application, which is of particular interest for phosphorus (P), where the efficiency of soil fertilisation is low. However, the uptake of foliar-applied nutrients is insuffi- ciently characterised. The aim of this study was to investigate the individual and combined significance of wettability, foliar fertiliser properties and surfactant on foliar P uptake in P-deficient maize (Zea mays L.). Sorption and desorption properties of two P salts used as foliar fertilisers (KH2PO4, K2HPO4) were determined with dynamic vapor sorption isotherms. Leaf surfaces and foliar spray depositions of two differently wettable maize cultivars were investigated by scanning electron microscopy and contact angle measurement. Phosphorus uptake was then linked to leaf and fertiliser solution properties and its effect on cell ultrastructure was char- acterised by transmission electron microscopy. Wettability was the key factor for P absorption, as all foliar fertilisers were taken up reaching a tissue-P level of adequately nourished plants. For unwettable leaves, only solutions with surfactant, especially the combination of surfactant and hygroscopic P salt (K2HPO4) were taken up. This study provides novel insights into the significance of leaf surface and fertiliser properties, which can thus contribute to an improvement of P fertilisation strategies.ElsevierAgronomíaIngeniería Aeroespacial y Mecánica de Fluidos2023info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/pdfhttps://hdl.handle.net/11441/166821https://doi.org/10.1016/j.plaphy.2023.108170reponame:idUS. Depósito de Investigación de la Universidad de Sevillainstname:Universidad de Sevilla (US)InglésPlant Physiology and Biochemistry, 205.info:eu-repo/semantics/openAccessoai:idus.us.es:11441/1668212026-06-17T12:51:07Z
dc.title.none.fl_str_mv Leaf wettability is the main driver for foliar P uptake in P-deficient maize
title Leaf wettability is the main driver for foliar P uptake in P-deficient maize
spellingShingle Leaf wettability is the main driver for foliar P uptake in P-deficient maize
Henningsen, Jon Niklas
Foliar P uptake
Leaf wettability
Maize cultivars
P deficiency
Point of efflorescence
Salt hygroscopicit
title_short Leaf wettability is the main driver for foliar P uptake in P-deficient maize
title_full Leaf wettability is the main driver for foliar P uptake in P-deficient maize
title_fullStr Leaf wettability is the main driver for foliar P uptake in P-deficient maize
title_full_unstemmed Leaf wettability is the main driver for foliar P uptake in P-deficient maize
title_sort Leaf wettability is the main driver for foliar P uptake in P-deficient maize
dc.creator.none.fl_str_mv Henningsen, Jon Niklas
Görlach, Bruno Maximilian
Quintero Ariza, José Manuel
Recena Garrido, Ramiro
Mühling, Karl Hermann
Fernández, Victoria
author Henningsen, Jon Niklas
author_facet Henningsen, Jon Niklas
Görlach, Bruno Maximilian
Quintero Ariza, José Manuel
Recena Garrido, Ramiro
Mühling, Karl Hermann
Fernández, Victoria
author_role author
author2 Görlach, Bruno Maximilian
Quintero Ariza, José Manuel
Recena Garrido, Ramiro
Mühling, Karl Hermann
Fernández, Victoria
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Agronomía
Ingeniería Aeroespacial y Mecánica de Fluidos
dc.subject.none.fl_str_mv Foliar P uptake
Leaf wettability
Maize cultivars
P deficiency
Point of efflorescence
Salt hygroscopicit
topic Foliar P uptake
Leaf wettability
Maize cultivars
P deficiency
Point of efflorescence
Salt hygroscopicit
description Foliar fertilisation is an alternative form of nutrient application, which is of particular interest for phosphorus (P), where the efficiency of soil fertilisation is low. However, the uptake of foliar-applied nutrients is insuffi- ciently characterised. The aim of this study was to investigate the individual and combined significance of wettability, foliar fertiliser properties and surfactant on foliar P uptake in P-deficient maize (Zea mays L.). Sorption and desorption properties of two P salts used as foliar fertilisers (KH2PO4, K2HPO4) were determined with dynamic vapor sorption isotherms. Leaf surfaces and foliar spray depositions of two differently wettable maize cultivars were investigated by scanning electron microscopy and contact angle measurement. Phosphorus uptake was then linked to leaf and fertiliser solution properties and its effect on cell ultrastructure was char- acterised by transmission electron microscopy. Wettability was the key factor for P absorption, as all foliar fertilisers were taken up reaching a tissue-P level of adequately nourished plants. For unwettable leaves, only solutions with surfactant, especially the combination of surfactant and hygroscopic P salt (K2HPO4) were taken up. This study provides novel insights into the significance of leaf surface and fertiliser properties, which can thus contribute to an improvement of P fertilisation strategies.
publishDate 2023
dc.date.none.fl_str_mv 2023
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/11441/166821
https://doi.org/10.1016/j.plaphy.2023.108170
url https://hdl.handle.net/11441/166821
https://doi.org/10.1016/j.plaphy.2023.108170
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Plant Physiology and Biochemistry, 205.
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:idUS. Depósito de Investigación de la Universidad de Sevilla
instname:Universidad de Sevilla (US)
instname_str Universidad de Sevilla (US)
reponame_str idUS. Depósito de Investigación de la Universidad de Sevilla
collection idUS. Depósito de Investigación de la Universidad de Sevilla
repository.name.fl_str_mv
repository.mail.fl_str_mv
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