Nitrogen mineralization in soils amended with sunnhemp, velvet bean and common bean residues

Detalhes bibliográficos
Autor(a) principal: Ambrosano,Edmilson José
Data de Publicação: 2003
Outros Autores: Trivelin,Paulo Cesar Ocheuze, Cantarella,Heitor, Ambrosano,Gláucia Maria Bovi, Muraoka,Takashi
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Scientia Agrícola (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162003000100020
Resumo: Nitrogen (15N) released from sunnhemp (Crotalaria juncea), velvet bean (Mucuna aterrima) and from Phaseolus bean residues was evaluated after incubation of the plant material in an Eutrudox and a Paleudalf, in a greenhouse experiment with pots containing 6 kg of air dried soil. Dry matter equivalent to 13 Mg ha-1 of Phaseolus bean residues and the same amount of above ground parts of the leguminous species, associated to 2.7 and 2.2 Mg ha-1 of roots of sunnhemp and velvet bean respectively, were incorporated into the soil. A completely randomized experimental design was adopted, with treatments arranged in a 2 <FONT FACE=Symbol>´</FONT> 3 + 1 factorial, replicated three times. The treatments were the following: two soils (Eutrudox and Paleudalf) and three plant materials: two green-manures (sunnhemp or velvet bean), and Phaseolus bean residues, besides one control without plant incorporation into the soil. For the green-manure treatments there were two sub-treatments for each legume species, with 15N labeling of either shoots or roots. Soil moisture was maintained relatively constant during the experiment al period and the treatments were sampled weekly during 49 days. Total mineral nitrogen in the soil, as well as that derived from the legume plants were determined by isotope dilution. Nitrogen from the velvet bean accounted for a greater proportion of the soil inorganic N; shoots were responsible for most of N accumulated. Dry bean residues caused immobilization of inorganic N. The leguminous species added were intensively and promptly mineralized preserving the soil native nitrogen. Mineralization of the legume plant N was greater in the Paleudalf soil than in the Eutrudox.
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spelling Nitrogen mineralization in soils amended with sunnhemp, velvet bean and common bean residuesmineral nitrogengreen manurenitrogen-15N-mineralizationNitrogen (15N) released from sunnhemp (Crotalaria juncea), velvet bean (Mucuna aterrima) and from Phaseolus bean residues was evaluated after incubation of the plant material in an Eutrudox and a Paleudalf, in a greenhouse experiment with pots containing 6 kg of air dried soil. Dry matter equivalent to 13 Mg ha-1 of Phaseolus bean residues and the same amount of above ground parts of the leguminous species, associated to 2.7 and 2.2 Mg ha-1 of roots of sunnhemp and velvet bean respectively, were incorporated into the soil. A completely randomized experimental design was adopted, with treatments arranged in a 2 <FONT FACE=Symbol>´</FONT> 3 + 1 factorial, replicated three times. The treatments were the following: two soils (Eutrudox and Paleudalf) and three plant materials: two green-manures (sunnhemp or velvet bean), and Phaseolus bean residues, besides one control without plant incorporation into the soil. For the green-manure treatments there were two sub-treatments for each legume species, with 15N labeling of either shoots or roots. Soil moisture was maintained relatively constant during the experiment al period and the treatments were sampled weekly during 49 days. Total mineral nitrogen in the soil, as well as that derived from the legume plants were determined by isotope dilution. Nitrogen from the velvet bean accounted for a greater proportion of the soil inorganic N; shoots were responsible for most of N accumulated. Dry bean residues caused immobilization of inorganic N. The leguminous species added were intensively and promptly mineralized preserving the soil native nitrogen. Mineralization of the legume plant N was greater in the Paleudalf soil than in the Eutrudox.Escola Superior de Agricultura "Luiz de Queiroz"2003-02-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162003000100020Scientia Agricola v.60 n.1 2003reponame:Scientia Agrícola (Online)instname:Universidade de São Paulo (USP)instacron:USP10.1590/S0103-90162003000100020info:eu-repo/semantics/openAccessAmbrosano,Edmilson JoséTrivelin,Paulo Cesar OcheuzeCantarella,HeitorAmbrosano,Gláucia Maria BoviMuraoka,Takashieng2003-03-20T00:00:00Zoai:scielo:S0103-90162003000100020Revistahttp://revistas.usp.br/sa/indexPUBhttps://old.scielo.br/oai/scielo-oai.phpscientia@usp.br||alleoni@usp.br1678-992X0103-9016opendoar:2003-03-20T00:00Scientia Agrícola (Online) - Universidade de São Paulo (USP)false
dc.title.none.fl_str_mv Nitrogen mineralization in soils amended with sunnhemp, velvet bean and common bean residues
title Nitrogen mineralization in soils amended with sunnhemp, velvet bean and common bean residues
spellingShingle Nitrogen mineralization in soils amended with sunnhemp, velvet bean and common bean residues
Ambrosano,Edmilson José
mineral nitrogen
green manure
nitrogen-15
N-mineralization
title_short Nitrogen mineralization in soils amended with sunnhemp, velvet bean and common bean residues
title_full Nitrogen mineralization in soils amended with sunnhemp, velvet bean and common bean residues
title_fullStr Nitrogen mineralization in soils amended with sunnhemp, velvet bean and common bean residues
title_full_unstemmed Nitrogen mineralization in soils amended with sunnhemp, velvet bean and common bean residues
title_sort Nitrogen mineralization in soils amended with sunnhemp, velvet bean and common bean residues
author Ambrosano,Edmilson José
author_facet Ambrosano,Edmilson José
Trivelin,Paulo Cesar Ocheuze
Cantarella,Heitor
Ambrosano,Gláucia Maria Bovi
Muraoka,Takashi
author_role author
author2 Trivelin,Paulo Cesar Ocheuze
Cantarella,Heitor
Ambrosano,Gláucia Maria Bovi
Muraoka,Takashi
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Ambrosano,Edmilson José
Trivelin,Paulo Cesar Ocheuze
Cantarella,Heitor
Ambrosano,Gláucia Maria Bovi
Muraoka,Takashi
dc.subject.por.fl_str_mv mineral nitrogen
green manure
nitrogen-15
N-mineralization
topic mineral nitrogen
green manure
nitrogen-15
N-mineralization
description Nitrogen (15N) released from sunnhemp (Crotalaria juncea), velvet bean (Mucuna aterrima) and from Phaseolus bean residues was evaluated after incubation of the plant material in an Eutrudox and a Paleudalf, in a greenhouse experiment with pots containing 6 kg of air dried soil. Dry matter equivalent to 13 Mg ha-1 of Phaseolus bean residues and the same amount of above ground parts of the leguminous species, associated to 2.7 and 2.2 Mg ha-1 of roots of sunnhemp and velvet bean respectively, were incorporated into the soil. A completely randomized experimental design was adopted, with treatments arranged in a 2 <FONT FACE=Symbol>´</FONT> 3 + 1 factorial, replicated three times. The treatments were the following: two soils (Eutrudox and Paleudalf) and three plant materials: two green-manures (sunnhemp or velvet bean), and Phaseolus bean residues, besides one control without plant incorporation into the soil. For the green-manure treatments there were two sub-treatments for each legume species, with 15N labeling of either shoots or roots. Soil moisture was maintained relatively constant during the experiment al period and the treatments were sampled weekly during 49 days. Total mineral nitrogen in the soil, as well as that derived from the legume plants were determined by isotope dilution. Nitrogen from the velvet bean accounted for a greater proportion of the soil inorganic N; shoots were responsible for most of N accumulated. Dry bean residues caused immobilization of inorganic N. The leguminous species added were intensively and promptly mineralized preserving the soil native nitrogen. Mineralization of the legume plant N was greater in the Paleudalf soil than in the Eutrudox.
publishDate 2003
dc.date.none.fl_str_mv 2003-02-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162003000100020
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162003000100020
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0103-90162003000100020
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Escola Superior de Agricultura "Luiz de Queiroz"
publisher.none.fl_str_mv Escola Superior de Agricultura "Luiz de Queiroz"
dc.source.none.fl_str_mv Scientia Agricola v.60 n.1 2003
reponame:Scientia Agrícola (Online)
instname:Universidade de São Paulo (USP)
instacron:USP
instname_str Universidade de São Paulo (USP)
instacron_str USP
institution USP
reponame_str Scientia Agrícola (Online)
collection Scientia Agrícola (Online)
repository.name.fl_str_mv Scientia Agrícola (Online) - Universidade de São Paulo (USP)
repository.mail.fl_str_mv scientia@usp.br||alleoni@usp.br
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