Effect of organic compost and inorganic nitrogen fertigation on spinach growth, phytochemical accumulation and antioxidant
Autor(a) principal: | |
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Data de Publicação: | 2020 |
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/10174/28468 https://doi.org/10.1016/j.heliyon.2020.e05085 |
Resumo: | The aim of this study was to evaluate the effect of the addition of organic compost in combination with the inorganic nitrogen fertigation on growth, phytochemical accumulation, and antioxidant activity of spinach (Spinacia oleracea L. cv. Manatee). Soil blocked spinach seedlings (six seedlings per block), three blocks per pot (316 plants m-2) were transplanted after 18 days after emergence into to 12 L pots. The treatments were: unfertilized soil, organic compost, organic compost + 75 kg of N ha-1, applied as ammonium sulfate; and organic compost + 75kg N ha-1, applied as ammonium nitrate. The addition of organic compost to unfertilized soil increased the fresh yield. The application of inorganic N from the two sources in relation to organic compost treatment increased spinach fresh yield from 2.3 to 4.81 kg m-2 and shoot dry weight from 0.60 to 1,31 g plant-1. Levels of carotenoids also increased with inorganic N addition, producing higher values in plants grown with organic compost + ammonium nitrate (31.14 mg/ 100 g fresh weight). However, the addition of N led to a decrease in leaf-blade total phenols from 75 to 56 mg gallic acid equivalents /100mg fresh weight. The addition of inorganic N led to a dramatic decrease in leaf-blade ferric reducing antioxidant activity. This effect was higher with ammonium sulfate application. The application of organic compost and inorganic nitrogen had no influence on the petiole’s phytochemical accumulation and antioxidant activity. |
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Effect of organic compost and inorganic nitrogen fertigation on spinach growth, phytochemical accumulation and antioxidantSpinachOrganic compostAscorbatAntioxidant activityThe aim of this study was to evaluate the effect of the addition of organic compost in combination with the inorganic nitrogen fertigation on growth, phytochemical accumulation, and antioxidant activity of spinach (Spinacia oleracea L. cv. Manatee). Soil blocked spinach seedlings (six seedlings per block), three blocks per pot (316 plants m-2) were transplanted after 18 days after emergence into to 12 L pots. The treatments were: unfertilized soil, organic compost, organic compost + 75 kg of N ha-1, applied as ammonium sulfate; and organic compost + 75kg N ha-1, applied as ammonium nitrate. The addition of organic compost to unfertilized soil increased the fresh yield. The application of inorganic N from the two sources in relation to organic compost treatment increased spinach fresh yield from 2.3 to 4.81 kg m-2 and shoot dry weight from 0.60 to 1,31 g plant-1. Levels of carotenoids also increased with inorganic N addition, producing higher values in plants grown with organic compost + ammonium nitrate (31.14 mg/ 100 g fresh weight). However, the addition of N led to a decrease in leaf-blade total phenols from 75 to 56 mg gallic acid equivalents /100mg fresh weight. The addition of inorganic N led to a dramatic decrease in leaf-blade ferric reducing antioxidant activity. This effect was higher with ammonium sulfate application. The application of organic compost and inorganic nitrogen had no influence on the petiole’s phytochemical accumulation and antioxidant activity.Elsevier2020-12-03T15:22:46Z2020-12-032020-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10174/28468https://doi.org/10.1016/j.heliyon.2020.e05085http://hdl.handle.net/10174/28468https://doi.org/10.1016/j.heliyon.2020.e05085engMachado, R. M. A., Alves-Pereira, I., Lourenço, D., Ferreira, R. M. A. (2020). Effect of organic compost and inorganic nitrogen fertigation on spinach growth, phytochemical accumulation and antioxidant activity. Heliyon 6 (2020) e05085. doi: 10.1016/j.heliyon.2020.e05085QUI - Publicações - Artigos em Revistas Internacionais Com Arbitragem Científicarmam@uevora.ptiap@uevora.ptndraf@uevora.pt365Machado, R. M. A.Alves-Pereira, I.Lourenço, D.Ferreira, R. M. A.info: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:RCAAP2024-01-03T19:24:38Zoai:dspace.uevora.pt:10174/28468Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T01:18:18.024911Repositório 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 |
Effect of organic compost and inorganic nitrogen fertigation on spinach growth, phytochemical accumulation and antioxidant |
title |
Effect of organic compost and inorganic nitrogen fertigation on spinach growth, phytochemical accumulation and antioxidant |
spellingShingle |
Effect of organic compost and inorganic nitrogen fertigation on spinach growth, phytochemical accumulation and antioxidant Machado, R. M. A. Spinach Organic compost Ascorbat Antioxidant activity |
title_short |
Effect of organic compost and inorganic nitrogen fertigation on spinach growth, phytochemical accumulation and antioxidant |
title_full |
Effect of organic compost and inorganic nitrogen fertigation on spinach growth, phytochemical accumulation and antioxidant |
title_fullStr |
Effect of organic compost and inorganic nitrogen fertigation on spinach growth, phytochemical accumulation and antioxidant |
title_full_unstemmed |
Effect of organic compost and inorganic nitrogen fertigation on spinach growth, phytochemical accumulation and antioxidant |
title_sort |
Effect of organic compost and inorganic nitrogen fertigation on spinach growth, phytochemical accumulation and antioxidant |
author |
Machado, R. M. A. |
author_facet |
Machado, R. M. A. Alves-Pereira, I. Lourenço, D. Ferreira, R. M. A. |
author_role |
author |
author2 |
Alves-Pereira, I. Lourenço, D. Ferreira, R. M. A. |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Machado, R. M. A. Alves-Pereira, I. Lourenço, D. Ferreira, R. M. A. |
dc.subject.por.fl_str_mv |
Spinach Organic compost Ascorbat Antioxidant activity |
topic |
Spinach Organic compost Ascorbat Antioxidant activity |
description |
The aim of this study was to evaluate the effect of the addition of organic compost in combination with the inorganic nitrogen fertigation on growth, phytochemical accumulation, and antioxidant activity of spinach (Spinacia oleracea L. cv. Manatee). Soil blocked spinach seedlings (six seedlings per block), three blocks per pot (316 plants m-2) were transplanted after 18 days after emergence into to 12 L pots. The treatments were: unfertilized soil, organic compost, organic compost + 75 kg of N ha-1, applied as ammonium sulfate; and organic compost + 75kg N ha-1, applied as ammonium nitrate. The addition of organic compost to unfertilized soil increased the fresh yield. The application of inorganic N from the two sources in relation to organic compost treatment increased spinach fresh yield from 2.3 to 4.81 kg m-2 and shoot dry weight from 0.60 to 1,31 g plant-1. Levels of carotenoids also increased with inorganic N addition, producing higher values in plants grown with organic compost + ammonium nitrate (31.14 mg/ 100 g fresh weight). However, the addition of N led to a decrease in leaf-blade total phenols from 75 to 56 mg gallic acid equivalents /100mg fresh weight. The addition of inorganic N led to a dramatic decrease in leaf-blade ferric reducing antioxidant activity. This effect was higher with ammonium sulfate application. The application of organic compost and inorganic nitrogen had no influence on the petiole’s phytochemical accumulation and antioxidant activity. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-12-03T15:22:46Z 2020-12-03 2020-01-01T00:00:00Z |
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/10174/28468 https://doi.org/10.1016/j.heliyon.2020.e05085 http://hdl.handle.net/10174/28468 https://doi.org/10.1016/j.heliyon.2020.e05085 |
url |
http://hdl.handle.net/10174/28468 https://doi.org/10.1016/j.heliyon.2020.e05085 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Machado, R. M. A., Alves-Pereira, I., Lourenço, D., Ferreira, R. M. A. (2020). Effect of organic compost and inorganic nitrogen fertigation on spinach growth, phytochemical accumulation and antioxidant activity. Heliyon 6 (2020) e05085. doi: 10.1016/j.heliyon.2020.e05085 QUI - Publicações - Artigos em Revistas Internacionais Com Arbitragem Científica rmam@uevora.pt iap@uevora.pt nd raf@uevora.pt 365 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Elsevier |
publisher.none.fl_str_mv |
Elsevier |
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 |
instacron_str |
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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1799136664905318400 |