Effects of soil tillage and mulching on thermal performance of a Luvisol topsoil layer
Autor(a) principal: | |
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Data de Publicação: | 2010 |
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/10174/3180 |
Resumo: | Important energy exchanges at soil surface regulate the thermal environment within top soil layer and the boundary layer above it. By this reason, the application of mulches or the modelling of micro relief by soil tillage are common practises to modify the thermal regime of a soil. The aim of this study is to compare the effect on thermal behaviour of a Luvisol resulting of soil tillage and the application of stubble mulch and, different amounts of straw mulch. For this purpose, experiments were performed from January to May 2007 in a field sowed with winter wheat. Temperatures were measured with copper-constantan (Type T) thermocouples placed over straw and over stubble, at soil surface and at 2, 4 and 8 cm depth. Temperatures above canopy were also recorded. Daily mean temperatures and temperature amplitudes in the top soil layer covered by straw mulch were smaller than those verified either by stubble mulch or with soil tillage. Daily minimum temperatures in mobilized plots or covered by stubble mulch were smaller than those verified in plots covered by straw mulch, therefore being the former treatments more susceptible to frost than the later ones. Thermal differences between the four plots decreased significantly with wheat growth. Implications of these techniques of soil temperature control for crop growth are also discussed. |
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Effects of soil tillage and mulching on thermal performance of a Luvisol topsoil layermulchingsoil tillagethermal behaviourImportant energy exchanges at soil surface regulate the thermal environment within top soil layer and the boundary layer above it. By this reason, the application of mulches or the modelling of micro relief by soil tillage are common practises to modify the thermal regime of a soil. The aim of this study is to compare the effect on thermal behaviour of a Luvisol resulting of soil tillage and the application of stubble mulch and, different amounts of straw mulch. For this purpose, experiments were performed from January to May 2007 in a field sowed with winter wheat. Temperatures were measured with copper-constantan (Type T) thermocouples placed over straw and over stubble, at soil surface and at 2, 4 and 8 cm depth. Temperatures above canopy were also recorded. Daily mean temperatures and temperature amplitudes in the top soil layer covered by straw mulch were smaller than those verified either by stubble mulch or with soil tillage. Daily minimum temperatures in mobilized plots or covered by stubble mulch were smaller than those verified in plots covered by straw mulch, therefore being the former treatments more susceptible to frost than the later ones. Thermal differences between the four plots decreased significantly with wheat growth. Implications of these techniques of soil temperature control for crop growth are also discussed.Institute of Forest Ecology Slovak Academy of Sciences2012-01-10T11:25:19Z2012-01-102010-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10174/3180http://hdl.handle.net/10174/3180engAndrade, J. A., Alexandre, C. A., & Basch, G. (2010): Effects of soil tillage and mulching on thermal performance of a Luvisol topsoil layer. Foliae Oecologicae 37(1): 1-7.1-7Foliae Oecologicae37(1)Deptº de Fitotecniazalex@uevora.ptndgb@uevora.pt577Andrade, J.A,Alexandre, C.A.Basch, G.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:RCAAP2023-08-08T03:48:01ZPortal AgregadorONG |
dc.title.none.fl_str_mv |
Effects of soil tillage and mulching on thermal performance of a Luvisol topsoil layer |
title |
Effects of soil tillage and mulching on thermal performance of a Luvisol topsoil layer |
spellingShingle |
Effects of soil tillage and mulching on thermal performance of a Luvisol topsoil layer Andrade, J.A, mulching soil tillage thermal behaviour |
title_short |
Effects of soil tillage and mulching on thermal performance of a Luvisol topsoil layer |
title_full |
Effects of soil tillage and mulching on thermal performance of a Luvisol topsoil layer |
title_fullStr |
Effects of soil tillage and mulching on thermal performance of a Luvisol topsoil layer |
title_full_unstemmed |
Effects of soil tillage and mulching on thermal performance of a Luvisol topsoil layer |
title_sort |
Effects of soil tillage and mulching on thermal performance of a Luvisol topsoil layer |
author |
Andrade, J.A, |
author_facet |
Andrade, J.A, Alexandre, C.A. Basch, G. |
author_role |
author |
author2 |
Alexandre, C.A. Basch, G. |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Andrade, J.A, Alexandre, C.A. Basch, G. |
dc.subject.por.fl_str_mv |
mulching soil tillage thermal behaviour |
topic |
mulching soil tillage thermal behaviour |
description |
Important energy exchanges at soil surface regulate the thermal environment within top soil layer and the boundary layer above it. By this reason, the application of mulches or the modelling of micro relief by soil tillage are common practises to modify the thermal regime of a soil. The aim of this study is to compare the effect on thermal behaviour of a Luvisol resulting of soil tillage and the application of stubble mulch and, different amounts of straw mulch. For this purpose, experiments were performed from January to May 2007 in a field sowed with winter wheat. Temperatures were measured with copper-constantan (Type T) thermocouples placed over straw and over stubble, at soil surface and at 2, 4 and 8 cm depth. Temperatures above canopy were also recorded. Daily mean temperatures and temperature amplitudes in the top soil layer covered by straw mulch were smaller than those verified either by stubble mulch or with soil tillage. Daily minimum temperatures in mobilized plots or covered by stubble mulch were smaller than those verified in plots covered by straw mulch, therefore being the former treatments more susceptible to frost than the later ones. Thermal differences between the four plots decreased significantly with wheat growth. Implications of these techniques of soil temperature control for crop growth are also discussed. |
publishDate |
2010 |
dc.date.none.fl_str_mv |
2010-01-01T00:00:00Z 2012-01-10T11:25:19Z 2012-01-10 |
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/10174/3180 http://hdl.handle.net/10174/3180 |
url |
http://hdl.handle.net/10174/3180 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Andrade, J. A., Alexandre, C. A., & Basch, G. (2010): Effects of soil tillage and mulching on thermal performance of a Luvisol topsoil layer. Foliae Oecologicae 37(1): 1-7. 1-7 Foliae Oecologicae 37(1) Deptº de Fitotecnia zalex@uevora.pt nd gb@uevora.pt 577 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Institute of Forest Ecology Slovak Academy of Sciences |
publisher.none.fl_str_mv |
Institute of Forest Ecology Slovak Academy of Sciences |
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 |
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repository.mail.fl_str_mv |
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_version_ |
1777304573060317184 |