Evaluation of near infrared spectroscopy (NIRS) for estimating soil organic matter and phosphorous in Mediterranean montado ecosystems

Detalhes bibliográficos
Autor(a) principal: Serrano, João
Data de Publicação: 2021
Outros Autores: Shahidian, Shakib, Silva, José Marques, Paixão, Luís, Carvalho, Mário, Moral, Francisco, Nogales-Bueno, Julio, Teixeira, Ricardo F.M., Jongen, Marjan, Domingos, Tiago, Rato, Ana Elisa
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.5/21357
Resumo: The Montado is an agro-silvo-pastoral ecosystem characteristic of the Mediterranean region. Pasture productivity and, consequently, the possibilities for intensifying livestock production depend on soil fertility. Soil organic matter (SOM) and phosphorus (P2O5) are two indicators of the evolution of soil fertility in this ecosystem. However, their conventional analytical determination by reference laboratory methods is costly, time consuming, and laborious and, thus, does not meet the needs of current production systems. The aim of this study was to evaluate an alternative approach to estimate SOM and soil P2O5 based on near infrared spectroscopy (NIRS) combined with multivariate data analysis. For this purpose, 242 topsoil samples were collected in 2019 in eleven fields. These samples were subjected to reference laboratory analysis and NIRS analysis. For NIRS, 165 samples were used during the calibration phase and 77 samples were used during the external validation phase. The results of this study showed significant correlation between NIRS calibration models and reference methods for quantification of these soil parameters. The coefficient of determination (R2, 0.85 for SOM and 0.76 for P2O5) and the residual predictive deviation (RPD, 2.7 for SOM and 2.2 for P2O5) obtained in external validation indicated the potential of NIRS to estimate SOM and P2O5, which can facilitate farm managers’ decision making in terms of dynamic management of animal grazing and differential fertilizer application
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spelling Evaluation of near infrared spectroscopy (NIRS) for estimating soil organic matter and phosphorous in Mediterranean montado ecosystemsspectrometrysoil fertilitysoil organic matterphosphorusprecision agricultureThe Montado is an agro-silvo-pastoral ecosystem characteristic of the Mediterranean region. Pasture productivity and, consequently, the possibilities for intensifying livestock production depend on soil fertility. Soil organic matter (SOM) and phosphorus (P2O5) are two indicators of the evolution of soil fertility in this ecosystem. However, their conventional analytical determination by reference laboratory methods is costly, time consuming, and laborious and, thus, does not meet the needs of current production systems. The aim of this study was to evaluate an alternative approach to estimate SOM and soil P2O5 based on near infrared spectroscopy (NIRS) combined with multivariate data analysis. For this purpose, 242 topsoil samples were collected in 2019 in eleven fields. These samples were subjected to reference laboratory analysis and NIRS analysis. For NIRS, 165 samples were used during the calibration phase and 77 samples were used during the external validation phase. The results of this study showed significant correlation between NIRS calibration models and reference methods for quantification of these soil parameters. The coefficient of determination (R2, 0.85 for SOM and 0.76 for P2O5) and the residual predictive deviation (RPD, 2.7 for SOM and 2.2 for P2O5) obtained in external validation indicated the potential of NIRS to estimate SOM and P2O5, which can facilitate farm managers’ decision making in terms of dynamic management of animal grazing and differential fertilizer applicationMDPIRepositório da Universidade de LisboaSerrano, JoãoShahidian, ShakibSilva, José MarquesPaixão, LuísCarvalho, MárioMoral, FranciscoNogales-Bueno, JulioTeixeira, Ricardo F.M.Jongen, MarjanDomingos, TiagoRato, Ana Elisa2021-05-26T13:55:57Z20212021-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.5/21357engSerrano, J.; Shahidian, S.; Marques da Silva, J.; Paixão, L.; de Carvalho, M.; Moral, F.; Nogales-Bueno, J.; Teixeira, R.F.M.; Jongen, M.; Domingos, T.; et al. Evaluation of Near Infrared Spectroscopy (NIRS) for Estimating Soil Organic Matter and Phosphorus in Mediterranean Montado Ecosystem. Sustainability 2021, 13, 2734https://doi.org/ 10.3390/su13052734info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-03-06T14:50:48Zoai:www.repository.utl.pt:10400.5/21357Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T17:05:57.544009Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Evaluation of near infrared spectroscopy (NIRS) for estimating soil organic matter and phosphorous in Mediterranean montado ecosystems
title Evaluation of near infrared spectroscopy (NIRS) for estimating soil organic matter and phosphorous in Mediterranean montado ecosystems
spellingShingle Evaluation of near infrared spectroscopy (NIRS) for estimating soil organic matter and phosphorous in Mediterranean montado ecosystems
Serrano, João
spectrometry
soil fertility
soil organic matter
phosphorus
precision agriculture
title_short Evaluation of near infrared spectroscopy (NIRS) for estimating soil organic matter and phosphorous in Mediterranean montado ecosystems
title_full Evaluation of near infrared spectroscopy (NIRS) for estimating soil organic matter and phosphorous in Mediterranean montado ecosystems
title_fullStr Evaluation of near infrared spectroscopy (NIRS) for estimating soil organic matter and phosphorous in Mediterranean montado ecosystems
title_full_unstemmed Evaluation of near infrared spectroscopy (NIRS) for estimating soil organic matter and phosphorous in Mediterranean montado ecosystems
title_sort Evaluation of near infrared spectroscopy (NIRS) for estimating soil organic matter and phosphorous in Mediterranean montado ecosystems
author Serrano, João
author_facet Serrano, João
Shahidian, Shakib
Silva, José Marques
Paixão, Luís
Carvalho, Mário
Moral, Francisco
Nogales-Bueno, Julio
Teixeira, Ricardo F.M.
Jongen, Marjan
Domingos, Tiago
Rato, Ana Elisa
author_role author
author2 Shahidian, Shakib
Silva, José Marques
Paixão, Luís
Carvalho, Mário
Moral, Francisco
Nogales-Bueno, Julio
Teixeira, Ricardo F.M.
Jongen, Marjan
Domingos, Tiago
Rato, Ana Elisa
author2_role author
author
author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Repositório da Universidade de Lisboa
dc.contributor.author.fl_str_mv Serrano, João
Shahidian, Shakib
Silva, José Marques
Paixão, Luís
Carvalho, Mário
Moral, Francisco
Nogales-Bueno, Julio
Teixeira, Ricardo F.M.
Jongen, Marjan
Domingos, Tiago
Rato, Ana Elisa
dc.subject.por.fl_str_mv spectrometry
soil fertility
soil organic matter
phosphorus
precision agriculture
topic spectrometry
soil fertility
soil organic matter
phosphorus
precision agriculture
description The Montado is an agro-silvo-pastoral ecosystem characteristic of the Mediterranean region. Pasture productivity and, consequently, the possibilities for intensifying livestock production depend on soil fertility. Soil organic matter (SOM) and phosphorus (P2O5) are two indicators of the evolution of soil fertility in this ecosystem. However, their conventional analytical determination by reference laboratory methods is costly, time consuming, and laborious and, thus, does not meet the needs of current production systems. The aim of this study was to evaluate an alternative approach to estimate SOM and soil P2O5 based on near infrared spectroscopy (NIRS) combined with multivariate data analysis. For this purpose, 242 topsoil samples were collected in 2019 in eleven fields. These samples were subjected to reference laboratory analysis and NIRS analysis. For NIRS, 165 samples were used during the calibration phase and 77 samples were used during the external validation phase. The results of this study showed significant correlation between NIRS calibration models and reference methods for quantification of these soil parameters. The coefficient of determination (R2, 0.85 for SOM and 0.76 for P2O5) and the residual predictive deviation (RPD, 2.7 for SOM and 2.2 for P2O5) obtained in external validation indicated the potential of NIRS to estimate SOM and P2O5, which can facilitate farm managers’ decision making in terms of dynamic management of animal grazing and differential fertilizer application
publishDate 2021
dc.date.none.fl_str_mv 2021-05-26T13:55:57Z
2021
2021-01-01T00:00:00Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10400.5/21357
url http://hdl.handle.net/10400.5/21357
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Serrano, J.; Shahidian, S.; Marques da Silva, J.; Paixão, L.; de Carvalho, M.; Moral, F.; Nogales-Bueno, J.; Teixeira, R.F.M.; Jongen, M.; Domingos, T.; et al. Evaluation of Near Infrared Spectroscopy (NIRS) for Estimating Soil Organic Matter and Phosphorus in Mediterranean Montado Ecosystem. Sustainability 2021, 13, 2734
https://doi.org/ 10.3390/su13052734
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv MDPI
publisher.none.fl_str_mv MDPI
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
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repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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