Biofertilizers and Silicon Fertilization as a Sustainable Option for Maize Production
Autor(a) principal: | |
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Data de Publicação: | 2023 |
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/10451/61727 |
Resumo: | Due to the rapid growth of human population and increasing living standards, there is a continuous increase in the gap between food productivity and demand. At the same time there is a global reduction in freshwater availability for agriculture. Several options have been proposed along the way to increase water use efficiency in the field. One promising possibility is the adoption of fertilization with silicon (Si) combined with biofertilizers (microorganisms). Si is estimated to impact on the root volume and distribution, while microorganisms added to the soil in the rhizosphere also impact directly on root growth. In this work we have tested the influence of Si fertilization (magnesium silicate + diatomaceous earth) combined with biofertilizers and 20% reduction in NPK fertilization in the growth of maize and the soil water balance on a field trial located in Companhia das Lezírias (Portugal). Data on soil water content was collected regularly and root analysis was performed at harvest. The water balance was calculated through the model HYDRUS, using root growth model calibrated for maize in the present conditions. Results showed that using an alternative source of fertilization (Si+microbes) while reducing NPK fertilization impacted on root growth development, with roots growing more horizontally, while conventional NPK fertilization resulted in deeper roots. As a consequence,, root water uptake increased and evaporation losses were lower in the treatment supplemented compared to the conventional, without compromising the yield obtained. Using biofertilizers combined with Si sources resulted in higher water use efficiency (2.64 kg m −3 ) than the NPK fertilization, normally applied for maize growth (2.56 kg m−3 ). The results imply that the supplementation+biofertilization allows a potential saving of 206 m 3 ha −1 water and 157 kg NPK ha −1 fertilization in a growing season assuring the same yield as obtained with the conventional NPK fertilization (18.64 ton ha −1 ). Implications are important for Portuguese agriculture, where maize is one of the most important cereals cultivated, especially in Centre and Southern part of the country where water is a scarce resource. |
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Biofertilizers and Silicon Fertilization as a Sustainable Option for Maize ProductionFertilization · Microorganisms · Root growth · Water balanceDue to the rapid growth of human population and increasing living standards, there is a continuous increase in the gap between food productivity and demand. At the same time there is a global reduction in freshwater availability for agriculture. Several options have been proposed along the way to increase water use efficiency in the field. One promising possibility is the adoption of fertilization with silicon (Si) combined with biofertilizers (microorganisms). Si is estimated to impact on the root volume and distribution, while microorganisms added to the soil in the rhizosphere also impact directly on root growth. In this work we have tested the influence of Si fertilization (magnesium silicate + diatomaceous earth) combined with biofertilizers and 20% reduction in NPK fertilization in the growth of maize and the soil water balance on a field trial located in Companhia das Lezírias (Portugal). Data on soil water content was collected regularly and root analysis was performed at harvest. The water balance was calculated through the model HYDRUS, using root growth model calibrated for maize in the present conditions. Results showed that using an alternative source of fertilization (Si+microbes) while reducing NPK fertilization impacted on root growth development, with roots growing more horizontally, while conventional NPK fertilization resulted in deeper roots. As a consequence,, root water uptake increased and evaporation losses were lower in the treatment supplemented compared to the conventional, without compromising the yield obtained. Using biofertilizers combined with Si sources resulted in higher water use efficiency (2.64 kg m −3 ) than the NPK fertilization, normally applied for maize growth (2.56 kg m−3 ). The results imply that the supplementation+biofertilization allows a potential saving of 206 m 3 ha −1 water and 157 kg NPK ha −1 fertilization in a growing season assuring the same yield as obtained with the conventional NPK fertilization (18.64 ton ha −1 ). Implications are important for Portuguese agriculture, where maize is one of the most important cereals cultivated, especially in Centre and Southern part of the country where water is a scarce resource.SpringerRepositório da Universidade de LisboaBesharat, SinaPinto, João CastroFernandes, ManuelaMiguel, AndreiaCruz, CristinaBarão, Lúcia2023-102024-10-01T00:00:00Z2023-10-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10451/61727eng10.1007/s12633-023-02713-yinfo:eu-repo/semantics/embargoedAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-01-15T01:18:35Zoai:repositorio.ul.pt:10451/61727Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T01:44:33.954532Repositório 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 |
Biofertilizers and Silicon Fertilization as a Sustainable Option for Maize Production |
title |
Biofertilizers and Silicon Fertilization as a Sustainable Option for Maize Production |
spellingShingle |
Biofertilizers and Silicon Fertilization as a Sustainable Option for Maize Production Besharat, Sina Fertilization · Microorganisms · Root growth · Water balance |
title_short |
Biofertilizers and Silicon Fertilization as a Sustainable Option for Maize Production |
title_full |
Biofertilizers and Silicon Fertilization as a Sustainable Option for Maize Production |
title_fullStr |
Biofertilizers and Silicon Fertilization as a Sustainable Option for Maize Production |
title_full_unstemmed |
Biofertilizers and Silicon Fertilization as a Sustainable Option for Maize Production |
title_sort |
Biofertilizers and Silicon Fertilization as a Sustainable Option for Maize Production |
author |
Besharat, Sina |
author_facet |
Besharat, Sina Pinto, João Castro Fernandes, Manuela Miguel, Andreia Cruz, Cristina Barão, Lúcia |
author_role |
author |
author2 |
Pinto, João Castro Fernandes, Manuela Miguel, Andreia Cruz, Cristina Barão, Lúcia |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Repositório da Universidade de Lisboa |
dc.contributor.author.fl_str_mv |
Besharat, Sina Pinto, João Castro Fernandes, Manuela Miguel, Andreia Cruz, Cristina Barão, Lúcia |
dc.subject.por.fl_str_mv |
Fertilization · Microorganisms · Root growth · Water balance |
topic |
Fertilization · Microorganisms · Root growth · Water balance |
description |
Due to the rapid growth of human population and increasing living standards, there is a continuous increase in the gap between food productivity and demand. At the same time there is a global reduction in freshwater availability for agriculture. Several options have been proposed along the way to increase water use efficiency in the field. One promising possibility is the adoption of fertilization with silicon (Si) combined with biofertilizers (microorganisms). Si is estimated to impact on the root volume and distribution, while microorganisms added to the soil in the rhizosphere also impact directly on root growth. In this work we have tested the influence of Si fertilization (magnesium silicate + diatomaceous earth) combined with biofertilizers and 20% reduction in NPK fertilization in the growth of maize and the soil water balance on a field trial located in Companhia das Lezírias (Portugal). Data on soil water content was collected regularly and root analysis was performed at harvest. The water balance was calculated through the model HYDRUS, using root growth model calibrated for maize in the present conditions. Results showed that using an alternative source of fertilization (Si+microbes) while reducing NPK fertilization impacted on root growth development, with roots growing more horizontally, while conventional NPK fertilization resulted in deeper roots. As a consequence,, root water uptake increased and evaporation losses were lower in the treatment supplemented compared to the conventional, without compromising the yield obtained. Using biofertilizers combined with Si sources resulted in higher water use efficiency (2.64 kg m −3 ) than the NPK fertilization, normally applied for maize growth (2.56 kg m−3 ). The results imply that the supplementation+biofertilization allows a potential saving of 206 m 3 ha −1 water and 157 kg NPK ha −1 fertilization in a growing season assuring the same yield as obtained with the conventional NPK fertilization (18.64 ton ha −1 ). Implications are important for Portuguese agriculture, where maize is one of the most important cereals cultivated, especially in Centre and Southern part of the country where water is a scarce resource. |
publishDate |
2023 |
dc.date.none.fl_str_mv |
2023-10 2023-10-01T00:00:00Z 2024-10-01T00:00:00Z |
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/10451/61727 |
url |
http://hdl.handle.net/10451/61727 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1007/s12633-023-02713-y |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/embargoedAccess |
eu_rights_str_mv |
embargoedAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Springer |
publisher.none.fl_str_mv |
Springer |
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 |
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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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1799136941465141248 |