Evaluation of near infrared spectroscopy (NIRS) for estimating soil organic matter and phosphorous in Mediterranean montado ecosystems
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , , , , , , , , |
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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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 |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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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1799131152093544448 |