Phosphorus cycling in dry and rewet incubated soils subjected to different fertilization histories

Detalhes bibliográficos
Autor(a) principal: Silva, Ana Beatriz de Albuquerque Morais
Data de Publicação: 2011
Tipo de documento: Dissertação
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.5/3919
Resumo: Mestrado em Engenharia do Ambiente - Instituto Superior de Agronomia
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spelling Phosphorus cycling in dry and rewet incubated soils subjected to different fertilization historiesphosphorusfertilizationdrying and rewettingsoilseutrophicationMestrado em Engenharia do Ambiente - Instituto Superior de AgronomiaPhosphorus continuous application in fertilizers, in quantities superior to those required by plants causes a P buildup in soils, potentially increasing nutrient losses and compromising water quality by eutrophication process. This work was aimed at assessing the effect of DRW cycles, in two soils with different fertilization histories subjected to organic and mineral fertilization, over P availability. Soils were collected from a long-term fertilizer management platform (NW Italy) divided in two plots experiencing since 1996 different fertilization management (one plot fertilized with low N and K levels and no P and another with fertilization high on N and P levels), and each was divided in 3 subplots treated with mineral, compost and without fertilization, since 2010. The soils were subjected, under laboratory conditions, to four DRW cycles and compared with another set at constant moisture. Weekly the soils were sampled and analyzed for some of their P forms. Soluble P increased in compost fertilized soil, especially after the third dry and rewet cycle, following microbial decay. Yet, this was more pronounced in the overfertilized soils. From these findings it is possible to conclude that the availability of P may be further enhanced by water content variations as by compost addition.ISA/UTLCordovil, Cláudia Marques dos SantosRepositório da Universidade de LisboaSilva, Ana Beatriz de Albuquerque Morais2012-03-06T14:30:10Z20112011-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisapplication/pdfhttp://hdl.handle.net/10400.5/3919engSilva, Ana Beatriz de Albuquerque Morais - Phosphorus cycling in dry and rewet incubated soils subjected to different fertilization histories. Lisboa: ISA, 2011info: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:RCAAP2023-03-06T14:34:59Zoai:www.repository.utl.pt:10400.5/3919Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T16:51:42.533961Repositório 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 Phosphorus cycling in dry and rewet incubated soils subjected to different fertilization histories
title Phosphorus cycling in dry and rewet incubated soils subjected to different fertilization histories
spellingShingle Phosphorus cycling in dry and rewet incubated soils subjected to different fertilization histories
Silva, Ana Beatriz de Albuquerque Morais
phosphorus
fertilization
drying and rewetting
soils
eutrophication
title_short Phosphorus cycling in dry and rewet incubated soils subjected to different fertilization histories
title_full Phosphorus cycling in dry and rewet incubated soils subjected to different fertilization histories
title_fullStr Phosphorus cycling in dry and rewet incubated soils subjected to different fertilization histories
title_full_unstemmed Phosphorus cycling in dry and rewet incubated soils subjected to different fertilization histories
title_sort Phosphorus cycling in dry and rewet incubated soils subjected to different fertilization histories
author Silva, Ana Beatriz de Albuquerque Morais
author_facet Silva, Ana Beatriz de Albuquerque Morais
author_role author
dc.contributor.none.fl_str_mv Cordovil, Cláudia Marques dos Santos
Repositório da Universidade de Lisboa
dc.contributor.author.fl_str_mv Silva, Ana Beatriz de Albuquerque Morais
dc.subject.por.fl_str_mv phosphorus
fertilization
drying and rewetting
soils
eutrophication
topic phosphorus
fertilization
drying and rewetting
soils
eutrophication
description Mestrado em Engenharia do Ambiente - Instituto Superior de Agronomia
publishDate 2011
dc.date.none.fl_str_mv 2011
2011-01-01T00:00:00Z
2012-03-06T14:30:10Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/masterThesis
format masterThesis
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10400.5/3919
url http://hdl.handle.net/10400.5/3919
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Silva, Ana Beatriz de Albuquerque Morais - Phosphorus cycling in dry and rewet incubated soils subjected to different fertilization histories. Lisboa: ISA, 2011
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 ISA/UTL
publisher.none.fl_str_mv ISA/UTL
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 Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
repository.mail.fl_str_mv
_version_ 1799130993375838208

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