Soil microbial response to glucose and phosphorus addition under agricultural systems in the Brazilian Cerrado

Detalhes bibliográficos
Autor(a) principal: FERREIRA,ADÃO S.
Data de Publicação: 2013
Outros Autores: SANTOS,MARIA AMELIA DOS, CORRÊA,GILBERTO F.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Anais da Academia Brasileira de Ciências (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652013000100395
Resumo: Conventional tillage (CT) and no-tillage (NT) management systems alter soil nutrient availability and consequently modify soil microbial response to nutrient additions such as carbon (C) and phosphorus (P). The objective of this study is to evaluate microbial response to the addition of C (glucose) and P (Na2HPO4.7H2O) under CT and NT in the brazilian Cerrado. In response to glucose addition, the NT system yielded higher microbial respiration rates and glucose consumption than the CT system. The best microbial response to C addition was after 0 - 12 h incubation in NT and 0 - 24 h in CT. The addition of P produced higher demand under CT than NT. After incubation, biochemical indicators such as microbial respiration, glucose consumption, dehydrogenase activity and metabolic yield confirmed the higher glucose demands under NT and higher phosphorus demands under CT. These results demonstrate that C and P addition alter significantly the microbial response, suggesting that soil microorganisms present nutrient differential demands between CT and NT management systems.
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spelling Soil microbial response to glucose and phosphorus addition under agricultural systems in the Brazilian Cerradodehydrogenaseglucose assayMichaelis-Menten equationnutrient demandsincubationConventional tillage (CT) and no-tillage (NT) management systems alter soil nutrient availability and consequently modify soil microbial response to nutrient additions such as carbon (C) and phosphorus (P). The objective of this study is to evaluate microbial response to the addition of C (glucose) and P (Na2HPO4.7H2O) under CT and NT in the brazilian Cerrado. In response to glucose addition, the NT system yielded higher microbial respiration rates and glucose consumption than the CT system. The best microbial response to C addition was after 0 - 12 h incubation in NT and 0 - 24 h in CT. The addition of P produced higher demand under CT than NT. After incubation, biochemical indicators such as microbial respiration, glucose consumption, dehydrogenase activity and metabolic yield confirmed the higher glucose demands under NT and higher phosphorus demands under CT. These results demonstrate that C and P addition alter significantly the microbial response, suggesting that soil microorganisms present nutrient differential demands between CT and NT management systems.Academia Brasileira de Ciências2013-03-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652013000100395Anais da Academia Brasileira de Ciências v.85 n.1 2013reponame:Anais da Academia Brasileira de Ciências (Online)instname:Academia Brasileira de Ciências (ABC)instacron:ABC10.1590/S0001-37652013005000021info:eu-repo/semantics/openAccessFERREIRA,ADÃO S.SANTOS,MARIA AMELIA DOSCORRÊA,GILBERTO F.eng2015-10-19T00:00:00Zoai:scielo:S0001-37652013000100395Revistahttp://www.scielo.br/aabchttps://old.scielo.br/oai/scielo-oai.php||aabc@abc.org.br1678-26900001-3765opendoar:2015-10-19T00:00Anais da Academia Brasileira de Ciências (Online) - Academia Brasileira de Ciências (ABC)false
dc.title.none.fl_str_mv Soil microbial response to glucose and phosphorus addition under agricultural systems in the Brazilian Cerrado
title Soil microbial response to glucose and phosphorus addition under agricultural systems in the Brazilian Cerrado
spellingShingle Soil microbial response to glucose and phosphorus addition under agricultural systems in the Brazilian Cerrado
FERREIRA,ADÃO S.
dehydrogenase
glucose assay
Michaelis-Menten equation
nutrient demands
incubation
title_short Soil microbial response to glucose and phosphorus addition under agricultural systems in the Brazilian Cerrado
title_full Soil microbial response to glucose and phosphorus addition under agricultural systems in the Brazilian Cerrado
title_fullStr Soil microbial response to glucose and phosphorus addition under agricultural systems in the Brazilian Cerrado
title_full_unstemmed Soil microbial response to glucose and phosphorus addition under agricultural systems in the Brazilian Cerrado
title_sort Soil microbial response to glucose and phosphorus addition under agricultural systems in the Brazilian Cerrado
author FERREIRA,ADÃO S.
author_facet FERREIRA,ADÃO S.
SANTOS,MARIA AMELIA DOS
CORRÊA,GILBERTO F.
author_role author
author2 SANTOS,MARIA AMELIA DOS
CORRÊA,GILBERTO F.
author2_role author
author
dc.contributor.author.fl_str_mv FERREIRA,ADÃO S.
SANTOS,MARIA AMELIA DOS
CORRÊA,GILBERTO F.
dc.subject.por.fl_str_mv dehydrogenase
glucose assay
Michaelis-Menten equation
nutrient demands
incubation
topic dehydrogenase
glucose assay
Michaelis-Menten equation
nutrient demands
incubation
description Conventional tillage (CT) and no-tillage (NT) management systems alter soil nutrient availability and consequently modify soil microbial response to nutrient additions such as carbon (C) and phosphorus (P). The objective of this study is to evaluate microbial response to the addition of C (glucose) and P (Na2HPO4.7H2O) under CT and NT in the brazilian Cerrado. In response to glucose addition, the NT system yielded higher microbial respiration rates and glucose consumption than the CT system. The best microbial response to C addition was after 0 - 12 h incubation in NT and 0 - 24 h in CT. The addition of P produced higher demand under CT than NT. After incubation, biochemical indicators such as microbial respiration, glucose consumption, dehydrogenase activity and metabolic yield confirmed the higher glucose demands under NT and higher phosphorus demands under CT. These results demonstrate that C and P addition alter significantly the microbial response, suggesting that soil microorganisms present nutrient differential demands between CT and NT management systems.
publishDate 2013
dc.date.none.fl_str_mv 2013-03-01
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=S0001-37652013000100395
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652013000100395
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0001-37652013005000021
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 Academia Brasileira de Ciências
publisher.none.fl_str_mv Academia Brasileira de Ciências
dc.source.none.fl_str_mv Anais da Academia Brasileira de Ciências v.85 n.1 2013
reponame:Anais da Academia Brasileira de Ciências (Online)
instname:Academia Brasileira de Ciências (ABC)
instacron:ABC
instname_str Academia Brasileira de Ciências (ABC)
instacron_str ABC
institution ABC
reponame_str Anais da Academia Brasileira de Ciências (Online)
collection Anais da Academia Brasileira de Ciências (Online)
repository.name.fl_str_mv Anais da Academia Brasileira de Ciências (Online) - Academia Brasileira de Ciências (ABC)
repository.mail.fl_str_mv ||aabc@abc.org.br
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