Influence of the particle size and animal slurry type on the potential of nitrogen mineralization after soil incorporation

Bibliographic Details
Main Author: Fangueiro, D.
Publication Date: 2010
Other Authors: Gusmão, M., Grilo, J., Vasconcelos, E., Cabral, F.
Language: eng
Source: Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
Download full: http://hdl.handle.net/10400.5/2618
Summary: RAMIRAN International Conference
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spelling Influence of the particle size and animal slurry type on the potential of nitrogen mineralization after soil incorporationanimal slurrynitrogen mineralizationsoil incorporationparticle sizeRAMIRAN International ConferenceAnimal manures are rich in organic matter and nutrients, namely nitrogen (N) and, consequently, widely applied to soil as organic fertilizers. However, a large part of the nitrogen contained in animal manures is in the organic form and so not directly available for plants. Indeed, organic N has to be mineralized prior to plant uptake (Rees and Castle, 2002). Several manure characteristics as the C:N ratio (Chadwick et al., 2000), the lignin content (Kristensen, 1996) and the NH4 +/organic N ratio (Beauchamp and Paul, 1989) have been suggested as indicators of the plant-available N. More recently, Fangueiro et al. (2008) showed that the potential of N mineralization (PNM) of cattle slurry is inversely correlated with slurry particle size: finest fractions are the particle-size fractions from which N mineralization occurs in slurries whereas coarser fractions are associated with immobilization. Furthermore, Moller et al. (2002) reported that animal diet and anaerobic decomposition during storage in slurry channels and stores affect the slurry particle size distribution. Such information is of great interest since the finest slurry particle size should infiltrate the soil more easily and quickly relative to the coarser slurry particle size that should remain close to soil surface. Furthermore, mechanical slurry separation is now performed in many pig and dairy farms in order to improve slurry management in terms of nutrients utilization and reducing costs related to slurry storage. Slurry separation by screw press leads to a nutrient rich organic solid fraction (0.7– 3.2 mm particles) that may be composted and a liquid fraction that can be used for fertigation. In the present study, three types of slurry (pig, duck and cattle) were separated into 4 slurry particle size fractions (>2000 um, 2000-500 um, 500-100 um, <100 um) in order to assess the influence of the type of slurry and slurry particle size on the PNM after soil incorporation.Cordovil, C. e Ferreira, L.Repositório da Universidade de LisboaFangueiro, D.Gusmão, M.Grilo, J.Vasconcelos, E.Cabral, F.2010-12-07T14:24:04Z2010-092010-09-01T00:00:00Zconference objectinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://hdl.handle.net/10400.5/2618eng978-972-8669-47-8info:eu-repo/semantics/openAccessreponame:Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)instname:FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologiainstacron:RCAAP2025-03-17T16:02:11Zoai:repositorio.ulisboa.pt:10400.5/2618Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireinfo@rcaap.ptopendoar:https://opendoar.ac.uk/repository/71602025-05-29T04:00:33.170926Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) - FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologiafalse
dc.title.none.fl_str_mv Influence of the particle size and animal slurry type on the potential of nitrogen mineralization after soil incorporation
title Influence of the particle size and animal slurry type on the potential of nitrogen mineralization after soil incorporation
spellingShingle Influence of the particle size and animal slurry type on the potential of nitrogen mineralization after soil incorporation
Fangueiro, D.
animal slurry
nitrogen mineralization
soil incorporation
particle size
title_short Influence of the particle size and animal slurry type on the potential of nitrogen mineralization after soil incorporation
title_full Influence of the particle size and animal slurry type on the potential of nitrogen mineralization after soil incorporation
title_fullStr Influence of the particle size and animal slurry type on the potential of nitrogen mineralization after soil incorporation
title_full_unstemmed Influence of the particle size and animal slurry type on the potential of nitrogen mineralization after soil incorporation
title_sort Influence of the particle size and animal slurry type on the potential of nitrogen mineralization after soil incorporation
author Fangueiro, D.
author_facet Fangueiro, D.
Gusmão, M.
Grilo, J.
Vasconcelos, E.
Cabral, F.
author_role author
author2 Gusmão, M.
Grilo, J.
Vasconcelos, E.
Cabral, F.
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Repositório da Universidade de Lisboa
dc.contributor.author.fl_str_mv Fangueiro, D.
Gusmão, M.
Grilo, J.
Vasconcelos, E.
Cabral, F.
dc.subject.por.fl_str_mv animal slurry
nitrogen mineralization
soil incorporation
particle size
topic animal slurry
nitrogen mineralization
soil incorporation
particle size
description RAMIRAN International Conference
publishDate 2010
dc.date.none.fl_str_mv 2010-12-07T14:24:04Z
2010-09
2010-09-01T00:00:00Z
dc.type.driver.fl_str_mv conference object
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10400.5/2618
url http://hdl.handle.net/10400.5/2618
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 978-972-8669-47-8
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Cordovil, C. e Ferreira, L.
publisher.none.fl_str_mv Cordovil, C. e Ferreira, L.
dc.source.none.fl_str_mv reponame:Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
instname:FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
instacron:RCAAP
instname_str FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
instacron_str RCAAP
institution RCAAP
reponame_str Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
collection Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
repository.name.fl_str_mv Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) - FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
repository.mail.fl_str_mv info@rcaap.pt
_version_ 1833601910494461952

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