THE POTENTIAL OF NO-TILL AND RESIDUE MANAGEMENT TO SEQUESTER
Autor(a) principal: | |
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Data de Publicação: | 2008 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10174/5187 |
Resumo: | Soil organic matter contents under Mediterranean climatic conditions frequently are low to very low, especially where extensive land use and thus low biomass production is predominant. Reducing tillage intensity and maintaining crop residues in the field are considered to be promising agricultural practices to counteract the decline in soil organic carbon. The objectives of this work were to study the combination of no-till and the use of different crops and amounts of residues and their management on the evolution of soil organic matter. In two trials, crops were established under no-till over 3 years using different levels of wheat straw and their management and one treatment with residues of chickpea. Initial and final soil organic matter contents were analysed. The results indicate that the higher the amount of residues returned to the field the higher the increase of soil organic matter. Maintenance of straw compared to in situ feeding enhances the build-up of soil organic matter. Chickpea as a low biomass producing crop with a low C/N ratio of its residues showed no positive effect in terms of soil organic matter improvement. The results suggest that the return of cereal residues instead of its removal or grazing in combination with no-till for crop establishment can contribute considerably to improve the low soil organic matter levels found in Mediterranean environments. |
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THE POTENTIAL OF NO-TILL AND RESIDUE MANAGEMENT TO SEQUESTERSoil organic matter contents under Mediterranean climatic conditions frequently are low to very low, especially where extensive land use and thus low biomass production is predominant. Reducing tillage intensity and maintaining crop residues in the field are considered to be promising agricultural practices to counteract the decline in soil organic carbon. The objectives of this work were to study the combination of no-till and the use of different crops and amounts of residues and their management on the evolution of soil organic matter. In two trials, crops were established under no-till over 3 years using different levels of wheat straw and their management and one treatment with residues of chickpea. Initial and final soil organic matter contents were analysed. The results indicate that the higher the amount of residues returned to the field the higher the increase of soil organic matter. Maintenance of straw compared to in situ feeding enhances the build-up of soil organic matter. Chickpea as a low biomass producing crop with a low C/N ratio of its residues showed no positive effect in terms of soil organic matter improvement. The results suggest that the return of cereal residues instead of its removal or grazing in combination with no-till for crop establishment can contribute considerably to improve the low soil organic matter levels found in Mediterranean environments.Slovak Association for Sustainable Agriculture, c/o Slovak Agricultural2012-07-13T15:06:39Z2012-07-132008-11-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10174/5187http://hdl.handle.net/10174/5187por978-80-969603-1-6Departamento de Fitotecniagb@uevora.ptjfcb@uevora.ptjcalado@uevora.ptmb@uevora.ptE C O M I T - Proceedings of the 5th International Scientific Conference, November 5−7, 2008 in Piešťany, Slovakia577Basch, G.Barros, JoséCalado, JoséBrandão, Manuelinfo: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:RCAAP2024-01-03T18:43:34Zoai:dspace.uevora.pt:10174/5187Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T01:00:11.846918Repositório 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 |
THE POTENTIAL OF NO-TILL AND RESIDUE MANAGEMENT TO SEQUESTER |
title |
THE POTENTIAL OF NO-TILL AND RESIDUE MANAGEMENT TO SEQUESTER |
spellingShingle |
THE POTENTIAL OF NO-TILL AND RESIDUE MANAGEMENT TO SEQUESTER Basch, G. |
title_short |
THE POTENTIAL OF NO-TILL AND RESIDUE MANAGEMENT TO SEQUESTER |
title_full |
THE POTENTIAL OF NO-TILL AND RESIDUE MANAGEMENT TO SEQUESTER |
title_fullStr |
THE POTENTIAL OF NO-TILL AND RESIDUE MANAGEMENT TO SEQUESTER |
title_full_unstemmed |
THE POTENTIAL OF NO-TILL AND RESIDUE MANAGEMENT TO SEQUESTER |
title_sort |
THE POTENTIAL OF NO-TILL AND RESIDUE MANAGEMENT TO SEQUESTER |
author |
Basch, G. |
author_facet |
Basch, G. Barros, José Calado, José Brandão, Manuel |
author_role |
author |
author2 |
Barros, José Calado, José Brandão, Manuel |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Basch, G. Barros, José Calado, José Brandão, Manuel |
description |
Soil organic matter contents under Mediterranean climatic conditions frequently are low to very low, especially where extensive land use and thus low biomass production is predominant. Reducing tillage intensity and maintaining crop residues in the field are considered to be promising agricultural practices to counteract the decline in soil organic carbon. The objectives of this work were to study the combination of no-till and the use of different crops and amounts of residues and their management on the evolution of soil organic matter. In two trials, crops were established under no-till over 3 years using different levels of wheat straw and their management and one treatment with residues of chickpea. Initial and final soil organic matter contents were analysed. The results indicate that the higher the amount of residues returned to the field the higher the increase of soil organic matter. Maintenance of straw compared to in situ feeding enhances the build-up of soil organic matter. Chickpea as a low biomass producing crop with a low C/N ratio of its residues showed no positive effect in terms of soil organic matter improvement. The results suggest that the return of cereal residues instead of its removal or grazing in combination with no-till for crop establishment can contribute considerably to improve the low soil organic matter levels found in Mediterranean environments. |
publishDate |
2008 |
dc.date.none.fl_str_mv |
2008-11-01T00:00:00Z 2012-07-13T15:06:39Z 2012-07-13 |
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/10174/5187 http://hdl.handle.net/10174/5187 |
url |
http://hdl.handle.net/10174/5187 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
978-80-969603-1-6 Departamento de Fitotecnia gb@uevora.pt jfcb@uevora.pt jcalado@uevora.pt mb@uevora.pt E C O M I T - Proceedings of the 5th International Scientific Conference, November 5−7, 2008 in Piešťany, Slovakia 577 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Slovak Association for Sustainable Agriculture, c/o Slovak Agricultural |
publisher.none.fl_str_mv |
Slovak Association for Sustainable Agriculture, c/o Slovak Agricultural |
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 |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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1799136484533469184 |