Biochar increases plant-available water in a sandy loam soil under an aerobic rice crop system.

Detalhes bibliográficos
Autor(a) principal: CARVALHO, M. T. de M.
Data de Publicação: 2014
Outros Autores: MAIA, A. de H. N., MADARI, B. E., BASTIAANS, L., VAN OORT, P. A. J., HEINEMANN, A. B., SILVA, M. A. S. da, PETTER, F. A., MARIMON JUNIOR, B. H., MEINKE, H.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
Texto Completo: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1011709
Resumo: The main objective of this study was to assess the impact of biochar rate (0, 8, 16 and 32 Mg ha-1) on the water retention capacity (WRC) of a sandy loam Dystric Plinthosol. The applied biochar was a by-product of slow pyrolysis (~450 °C) of eucalyptus wood, milled to pass through a 2000 micrometers sieve that resulted in a material with an intrinsic porosity less than or equal to 10 micrometers and a specific surface area of ~3.2 m2 g-1. The biochar was incorporated into the top 15 cm of the soil under an aerobic rice system. Our study focused on both the effects on WRC and rice yields 2 and 3 years after its application. Undisturbed soil samples were collected from 16 plots in two soil layers (5-10 and 15-20 cm). Soil water retention curves were modelled using a nonlinear mixed model which appropriately accounts for uncertainties inherent of spatial variability and repeated measurements taken within a specific soil sample. We found an increase in plant-available water in the upper soil layer proportional to the rate of biochar, with about 0.8% for each Mg ha-1 biochar amendment 2 and 3 years after its application. The impact of biochar on soil WRC was most likely related to an effect in overall porosity of the sandy loam soil, which was evident from an increase in saturated soil moisture and macro porosity with 0.5 and 1.6% for each Mg ha-1 of biochar applied, respectively. The increment in soil WRC did not translate into an increase in rice yield, essentially because in both seasons the amount of rainfall during the critical period for rice production exceeded 650 mm. The use of biochar as a soil amendment can be a worthy strategy to guarantee yield stability under short-term water-limited conditions. Our findings raise the importance of assessing the feasibility of very high application rates of biochar and the inclusion of a detailed analysis of its physical and chemical properties as part of future investigations.
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spelling Biochar increases plant-available water in a sandy loam soil under an aerobic rice crop system.BiocarvãoCarvãoArrozRetenção de água no soloSolo arenosoOryza SativaBiocharRiceSoil water retentionSandy loam soilsThe main objective of this study was to assess the impact of biochar rate (0, 8, 16 and 32 Mg ha-1) on the water retention capacity (WRC) of a sandy loam Dystric Plinthosol. The applied biochar was a by-product of slow pyrolysis (~450 °C) of eucalyptus wood, milled to pass through a 2000 micrometers sieve that resulted in a material with an intrinsic porosity less than or equal to 10 micrometers and a specific surface area of ~3.2 m2 g-1. The biochar was incorporated into the top 15 cm of the soil under an aerobic rice system. Our study focused on both the effects on WRC and rice yields 2 and 3 years after its application. Undisturbed soil samples were collected from 16 plots in two soil layers (5-10 and 15-20 cm). Soil water retention curves were modelled using a nonlinear mixed model which appropriately accounts for uncertainties inherent of spatial variability and repeated measurements taken within a specific soil sample. We found an increase in plant-available water in the upper soil layer proportional to the rate of biochar, with about 0.8% for each Mg ha-1 biochar amendment 2 and 3 years after its application. The impact of biochar on soil WRC was most likely related to an effect in overall porosity of the sandy loam soil, which was evident from an increase in saturated soil moisture and macro porosity with 0.5 and 1.6% for each Mg ha-1 of biochar applied, respectively. The increment in soil WRC did not translate into an increase in rice yield, essentially because in both seasons the amount of rainfall during the critical period for rice production exceeded 650 mm. The use of biochar as a soil amendment can be a worthy strategy to guarantee yield stability under short-term water-limited conditions. Our findings raise the importance of assessing the feasibility of very high application rates of biochar and the inclusion of a detailed analysis of its physical and chemical properties as part of future investigations.MARCIA THAIS DE MELO CARVALHO, CNPAF; ALINE DE HOLANDA NUNES MAIA, CNPMA; BEATA EMOKE MADARI, CNPAF; LAMMERT BASTIAANS, Wageningen University; PEPIJN A J VAN OORT, Wageningen University; ALEXANDRE BRYAN HEINEMANN, CNPAF; MELLISSA ANANIAS SOLER DA SILVA, CNPAF; FABIANO ANDRE PETTER, UFMT; B H MARIMON JUNIOR, UFMT; H MEINKE, Wageningen University.CARVALHO, M. T. de M.MAIA, A. de H. N.MADARI, B. E.BASTIAANS, L.VAN OORT, P. A. J.HEINEMANN, A. B.SILVA, M. A. S. daPETTER, F. A.MARIMON JUNIOR, B. H.MEINKE, H.2015-03-18T11:11:11Z2015-03-18T11:11:11Z2015-03-1820142015-03-18T11:11:11Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleSolid Earth, Göttingen, v. 5, p. 939-952, 2014.http://www.alice.cnptia.embrapa.br/alice/handle/doc/101170910.5194/se-5-939-2014enginfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPA2017-08-16T02:08:57Zoai:www.alice.cnptia.embrapa.br:doc/1011709Repositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestopendoar:21542017-08-16T02:08:57falseRepositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestcg-riaa@embrapa.bropendoar:21542017-08-16T02:08:57Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Biochar increases plant-available water in a sandy loam soil under an aerobic rice crop system.
title Biochar increases plant-available water in a sandy loam soil under an aerobic rice crop system.
spellingShingle Biochar increases plant-available water in a sandy loam soil under an aerobic rice crop system.
CARVALHO, M. T. de M.
Biocarvão
Carvão
Arroz
Retenção de água no solo
Solo arenoso
Oryza Sativa
Biochar
Rice
Soil water retention
Sandy loam soils
title_short Biochar increases plant-available water in a sandy loam soil under an aerobic rice crop system.
title_full Biochar increases plant-available water in a sandy loam soil under an aerobic rice crop system.
title_fullStr Biochar increases plant-available water in a sandy loam soil under an aerobic rice crop system.
title_full_unstemmed Biochar increases plant-available water in a sandy loam soil under an aerobic rice crop system.
title_sort Biochar increases plant-available water in a sandy loam soil under an aerobic rice crop system.
author CARVALHO, M. T. de M.
author_facet CARVALHO, M. T. de M.
MAIA, A. de H. N.
MADARI, B. E.
BASTIAANS, L.
VAN OORT, P. A. J.
HEINEMANN, A. B.
SILVA, M. A. S. da
PETTER, F. A.
MARIMON JUNIOR, B. H.
MEINKE, H.
author_role author
author2 MAIA, A. de H. N.
MADARI, B. E.
BASTIAANS, L.
VAN OORT, P. A. J.
HEINEMANN, A. B.
SILVA, M. A. S. da
PETTER, F. A.
MARIMON JUNIOR, B. H.
MEINKE, H.
author2_role author
author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv MARCIA THAIS DE MELO CARVALHO, CNPAF; ALINE DE HOLANDA NUNES MAIA, CNPMA; BEATA EMOKE MADARI, CNPAF; LAMMERT BASTIAANS, Wageningen University; PEPIJN A J VAN OORT, Wageningen University; ALEXANDRE BRYAN HEINEMANN, CNPAF; MELLISSA ANANIAS SOLER DA SILVA, CNPAF; FABIANO ANDRE PETTER, UFMT; B H MARIMON JUNIOR, UFMT; H MEINKE, Wageningen University.
dc.contributor.author.fl_str_mv CARVALHO, M. T. de M.
MAIA, A. de H. N.
MADARI, B. E.
BASTIAANS, L.
VAN OORT, P. A. J.
HEINEMANN, A. B.
SILVA, M. A. S. da
PETTER, F. A.
MARIMON JUNIOR, B. H.
MEINKE, H.
dc.subject.por.fl_str_mv Biocarvão
Carvão
Arroz
Retenção de água no solo
Solo arenoso
Oryza Sativa
Biochar
Rice
Soil water retention
Sandy loam soils
topic Biocarvão
Carvão
Arroz
Retenção de água no solo
Solo arenoso
Oryza Sativa
Biochar
Rice
Soil water retention
Sandy loam soils
description The main objective of this study was to assess the impact of biochar rate (0, 8, 16 and 32 Mg ha-1) on the water retention capacity (WRC) of a sandy loam Dystric Plinthosol. The applied biochar was a by-product of slow pyrolysis (~450 °C) of eucalyptus wood, milled to pass through a 2000 micrometers sieve that resulted in a material with an intrinsic porosity less than or equal to 10 micrometers and a specific surface area of ~3.2 m2 g-1. The biochar was incorporated into the top 15 cm of the soil under an aerobic rice system. Our study focused on both the effects on WRC and rice yields 2 and 3 years after its application. Undisturbed soil samples were collected from 16 plots in two soil layers (5-10 and 15-20 cm). Soil water retention curves were modelled using a nonlinear mixed model which appropriately accounts for uncertainties inherent of spatial variability and repeated measurements taken within a specific soil sample. We found an increase in plant-available water in the upper soil layer proportional to the rate of biochar, with about 0.8% for each Mg ha-1 biochar amendment 2 and 3 years after its application. The impact of biochar on soil WRC was most likely related to an effect in overall porosity of the sandy loam soil, which was evident from an increase in saturated soil moisture and macro porosity with 0.5 and 1.6% for each Mg ha-1 of biochar applied, respectively. The increment in soil WRC did not translate into an increase in rice yield, essentially because in both seasons the amount of rainfall during the critical period for rice production exceeded 650 mm. The use of biochar as a soil amendment can be a worthy strategy to guarantee yield stability under short-term water-limited conditions. Our findings raise the importance of assessing the feasibility of very high application rates of biochar and the inclusion of a detailed analysis of its physical and chemical properties as part of future investigations.
publishDate 2014
dc.date.none.fl_str_mv 2014
2015-03-18T11:11:11Z
2015-03-18T11:11:11Z
2015-03-18
2015-03-18T11:11:11Z
dc.type.driver.fl_str_mv info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv Solid Earth, Göttingen, v. 5, p. 939-952, 2014.
http://www.alice.cnptia.embrapa.br/alice/handle/doc/1011709
10.5194/se-5-939-2014
identifier_str_mv Solid Earth, Göttingen, v. 5, p. 939-952, 2014.
10.5194/se-5-939-2014
url http://www.alice.cnptia.embrapa.br/alice/handle/doc/1011709
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.source.none.fl_str_mv reponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron:EMBRAPA
instname_str Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron_str EMBRAPA
institution EMBRAPA
reponame_str Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
collection Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
repository.name.fl_str_mv Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
repository.mail.fl_str_mv cg-riaa@embrapa.br
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