Effectiveness of Extractants for Bioavailable Phosphorus in Tropical Soils Amended with Sewage Sludge
Autor(a) principal: | |
---|---|
Data de Publicação: | 2015 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1155/2015/720167 http://hdl.handle.net/11449/232404 |
Resumo: | Urban wastes such as sewage sludge can be an economically viable alternative source for providing macro- and micronutrients to plants in tropical conditions. Sewage sludge is normally rich in phosphorus (P), which is present in soils mainly in organic forms, so that it is very important to establish methods for estimating its availability to plants. This study aimed to test three extractants that simulate P-uptake by maize (Zea mays) cropped in plots after 13 consecutive years of fertilization with sewage sludge, in a cycle of fertilized sugarcane (Saccharum L.) amended with sewage sludge and organic compost. Soil samples were collected at depths of 0-10, 10-20, and 20-40 cm in March 2010 from the two experimental areas. Soil P was extracted via ion exchange resin, Mehlich-I, and 0.025 M HOand determined via colorimetry. Maize and sugarcane diagnostic leaves were collected in the experiments, subjected to nitric-perchloric digestion, and the leaf-P content was determined via colorimetry. No significant correlations were found between phosphorus extracted from soils and phosphorus concentrations in diagnostic leaves. Resin extracted larger amounts of P in the short-term experiment, while acidic extractants yielded larger amounts in the long-term experiment. |
id |
UNSP_d37bc621fcb57d90125d57e5e0a8ffe5 |
---|---|
oai_identifier_str |
oai:repositorio.unesp.br:11449/232404 |
network_acronym_str |
UNSP |
network_name_str |
Repositório Institucional da UNESP |
repository_id_str |
2946 |
spelling |
Effectiveness of Extractants for Bioavailable Phosphorus in Tropical Soils Amended with Sewage SludgeUrban wastes such as sewage sludge can be an economically viable alternative source for providing macro- and micronutrients to plants in tropical conditions. Sewage sludge is normally rich in phosphorus (P), which is present in soils mainly in organic forms, so that it is very important to establish methods for estimating its availability to plants. This study aimed to test three extractants that simulate P-uptake by maize (Zea mays) cropped in plots after 13 consecutive years of fertilization with sewage sludge, in a cycle of fertilized sugarcane (Saccharum L.) amended with sewage sludge and organic compost. Soil samples were collected at depths of 0-10, 10-20, and 20-40 cm in March 2010 from the two experimental areas. Soil P was extracted via ion exchange resin, Mehlich-I, and 0.025 M HOand determined via colorimetry. Maize and sugarcane diagnostic leaves were collected in the experiments, subjected to nitric-perchloric digestion, and the leaf-P content was determined via colorimetry. No significant correlations were found between phosphorus extracted from soils and phosphorus concentrations in diagnostic leaves. Resin extracted larger amounts of P in the short-term experiment, while acidic extractants yielded larger amounts in the long-term experiment.Department of Soil Science, University of São Paulo (ESALQ/USP), P.O. Box 9Department of Technology, São Paulo State UniversitySão Paulo State Agribusiness Technology AgencyDepartment of Soil Science, ESALQ/USPDepartment of Technology, São Paulo State UniversityUniversidade de São Paulo (USP)Universidade Estadual Paulista (UNESP)São Paulo State Agribusiness Technology AgencyNogueirol, Roberta CorraMelo, Wanderley José De [UNESP]Bertoncini, Edna IvaniAlleoni, Lus Reynaldo Ferracci2022-04-29T15:03:57Z2022-04-29T15:03:57Z2015-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1155/2015/720167Applied and Environmental Soil Science, v. 2015.1687-76751687-7667http://hdl.handle.net/11449/23240410.1155/2015/7201672-s2.0-84929649000Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengApplied and Environmental Soil Scienceinfo:eu-repo/semantics/openAccess2024-06-07T15:31:33Zoai:repositorio.unesp.br:11449/232404Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T15:05:09.792611Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Effectiveness of Extractants for Bioavailable Phosphorus in Tropical Soils Amended with Sewage Sludge |
title |
Effectiveness of Extractants for Bioavailable Phosphorus in Tropical Soils Amended with Sewage Sludge |
spellingShingle |
Effectiveness of Extractants for Bioavailable Phosphorus in Tropical Soils Amended with Sewage Sludge Nogueirol, Roberta Corra |
title_short |
Effectiveness of Extractants for Bioavailable Phosphorus in Tropical Soils Amended with Sewage Sludge |
title_full |
Effectiveness of Extractants for Bioavailable Phosphorus in Tropical Soils Amended with Sewage Sludge |
title_fullStr |
Effectiveness of Extractants for Bioavailable Phosphorus in Tropical Soils Amended with Sewage Sludge |
title_full_unstemmed |
Effectiveness of Extractants for Bioavailable Phosphorus in Tropical Soils Amended with Sewage Sludge |
title_sort |
Effectiveness of Extractants for Bioavailable Phosphorus in Tropical Soils Amended with Sewage Sludge |
author |
Nogueirol, Roberta Corra |
author_facet |
Nogueirol, Roberta Corra Melo, Wanderley José De [UNESP] Bertoncini, Edna Ivani Alleoni, Lus Reynaldo Ferracci |
author_role |
author |
author2 |
Melo, Wanderley José De [UNESP] Bertoncini, Edna Ivani Alleoni, Lus Reynaldo Ferracci |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade de São Paulo (USP) Universidade Estadual Paulista (UNESP) São Paulo State Agribusiness Technology Agency |
dc.contributor.author.fl_str_mv |
Nogueirol, Roberta Corra Melo, Wanderley José De [UNESP] Bertoncini, Edna Ivani Alleoni, Lus Reynaldo Ferracci |
description |
Urban wastes such as sewage sludge can be an economically viable alternative source for providing macro- and micronutrients to plants in tropical conditions. Sewage sludge is normally rich in phosphorus (P), which is present in soils mainly in organic forms, so that it is very important to establish methods for estimating its availability to plants. This study aimed to test three extractants that simulate P-uptake by maize (Zea mays) cropped in plots after 13 consecutive years of fertilization with sewage sludge, in a cycle of fertilized sugarcane (Saccharum L.) amended with sewage sludge and organic compost. Soil samples were collected at depths of 0-10, 10-20, and 20-40 cm in March 2010 from the two experimental areas. Soil P was extracted via ion exchange resin, Mehlich-I, and 0.025 M HOand determined via colorimetry. Maize and sugarcane diagnostic leaves were collected in the experiments, subjected to nitric-perchloric digestion, and the leaf-P content was determined via colorimetry. No significant correlations were found between phosphorus extracted from soils and phosphorus concentrations in diagnostic leaves. Resin extracted larger amounts of P in the short-term experiment, while acidic extractants yielded larger amounts in the long-term experiment. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-01-01 2022-04-29T15:03:57Z 2022-04-29T15:03:57Z |
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://dx.doi.org/10.1155/2015/720167 Applied and Environmental Soil Science, v. 2015. 1687-7675 1687-7667 http://hdl.handle.net/11449/232404 10.1155/2015/720167 2-s2.0-84929649000 |
url |
http://dx.doi.org/10.1155/2015/720167 http://hdl.handle.net/11449/232404 |
identifier_str_mv |
Applied and Environmental Soil Science, v. 2015. 1687-7675 1687-7667 10.1155/2015/720167 2-s2.0-84929649000 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Applied and Environmental Soil Science |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808128457051209728 |