How different soil moisture levels affect the microbial activity
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Ciência Rural |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000600252 |
Resumo: | ABSTRACT: The lowland soils are characterized by high susceptibility to water saturation. This anaerobic condition is usually reported in paddy fields and alters the decomposition process of soil organic compounds. The aim of this study was to evaluate the soil microbial and enzymatic activity of a lowland soil at different soil moisture contents. A poorly drained Albaqualf cultivated with irrigated rice was used to evaluate microbial and enzymatic activity in treatments with different levels of soil moisture, being: i) 60% of field capacity (FC) (60%FC); ii) 100% of FC (100%FC); iii) flooded soil with a 2 cm water layer above soil surface, and iv) soil kept at 60%FC with late flood after 29 days the incubation. The greater soil microbial activity was observed in the 100%FC treatment, being 41% greater than 60%FC treatment and only 2% higher than flooded treatment. The enzymatic activity data by fluorescein diacetate (FDA) hydrolysis corroborated the higher CO2 release in treatments with higher soil moisture content. Differently from the results reported, the main methodologies to evaluate microbial activity still recommend maintenance of the soil with a moisture content close to 60% of the FC. However, in lowland soil with history of frequent paddy fields, the maintenance of moisture close to 60% of the FC can limit the microbial activity. The soil respiration technique can be used to evaluate the microbial activity in flooded soil conditions. However, further studies should be conducted to understand the effect of the cultivation history on the microbial community of these environments. |
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How different soil moisture levels affect the microbial activityflooded riceenzymatic activityFDA hydrolysissoil respiration.ABSTRACT: The lowland soils are characterized by high susceptibility to water saturation. This anaerobic condition is usually reported in paddy fields and alters the decomposition process of soil organic compounds. The aim of this study was to evaluate the soil microbial and enzymatic activity of a lowland soil at different soil moisture contents. A poorly drained Albaqualf cultivated with irrigated rice was used to evaluate microbial and enzymatic activity in treatments with different levels of soil moisture, being: i) 60% of field capacity (FC) (60%FC); ii) 100% of FC (100%FC); iii) flooded soil with a 2 cm water layer above soil surface, and iv) soil kept at 60%FC with late flood after 29 days the incubation. The greater soil microbial activity was observed in the 100%FC treatment, being 41% greater than 60%FC treatment and only 2% higher than flooded treatment. The enzymatic activity data by fluorescein diacetate (FDA) hydrolysis corroborated the higher CO2 release in treatments with higher soil moisture content. Differently from the results reported, the main methodologies to evaluate microbial activity still recommend maintenance of the soil with a moisture content close to 60% of the FC. However, in lowland soil with history of frequent paddy fields, the maintenance of moisture close to 60% of the FC can limit the microbial activity. The soil respiration technique can be used to evaluate the microbial activity in flooded soil conditions. However, further studies should be conducted to understand the effect of the cultivation history on the microbial community of these environments.Universidade Federal de Santa Maria2020-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000600252Ciência Rural v.50 n.6 2020reponame:Ciência Ruralinstname:Universidade Federal de Santa Maria (UFSM)instacron:UFSM10.1590/0103-8478cr20190831info:eu-repo/semantics/openAccessDenardin,Luiz Gustavo de OliveiraAlves,Lucas AquinoOrtigara,CíceroWinck,BrunaCoblinski,João AugustoSchmidt,Marcelo RaulCarlos,Filipe SelauToni,Cézar Augusto Gama deCamargo,Flávio Anastácio de OliveiraAnghinoni,IbanorClay,Davideng2020-05-07T00:00:00ZRevista |
dc.title.none.fl_str_mv |
How different soil moisture levels affect the microbial activity |
title |
How different soil moisture levels affect the microbial activity |
spellingShingle |
How different soil moisture levels affect the microbial activity Denardin,Luiz Gustavo de Oliveira flooded rice enzymatic activity FDA hydrolysis soil respiration. |
title_short |
How different soil moisture levels affect the microbial activity |
title_full |
How different soil moisture levels affect the microbial activity |
title_fullStr |
How different soil moisture levels affect the microbial activity |
title_full_unstemmed |
How different soil moisture levels affect the microbial activity |
title_sort |
How different soil moisture levels affect the microbial activity |
author |
Denardin,Luiz Gustavo de Oliveira |
author_facet |
Denardin,Luiz Gustavo de Oliveira Alves,Lucas Aquino Ortigara,Cícero Winck,Bruna Coblinski,João Augusto Schmidt,Marcelo Raul Carlos,Filipe Selau Toni,Cézar Augusto Gama de Camargo,Flávio Anastácio de Oliveira Anghinoni,Ibanor Clay,David |
author_role |
author |
author2 |
Alves,Lucas Aquino Ortigara,Cícero Winck,Bruna Coblinski,João Augusto Schmidt,Marcelo Raul Carlos,Filipe Selau Toni,Cézar Augusto Gama de Camargo,Flávio Anastácio de Oliveira Anghinoni,Ibanor Clay,David |
author2_role |
author author author author author author author author author author |
dc.contributor.author.fl_str_mv |
Denardin,Luiz Gustavo de Oliveira Alves,Lucas Aquino Ortigara,Cícero Winck,Bruna Coblinski,João Augusto Schmidt,Marcelo Raul Carlos,Filipe Selau Toni,Cézar Augusto Gama de Camargo,Flávio Anastácio de Oliveira Anghinoni,Ibanor Clay,David |
dc.subject.por.fl_str_mv |
flooded rice enzymatic activity FDA hydrolysis soil respiration. |
topic |
flooded rice enzymatic activity FDA hydrolysis soil respiration. |
description |
ABSTRACT: The lowland soils are characterized by high susceptibility to water saturation. This anaerobic condition is usually reported in paddy fields and alters the decomposition process of soil organic compounds. The aim of this study was to evaluate the soil microbial and enzymatic activity of a lowland soil at different soil moisture contents. A poorly drained Albaqualf cultivated with irrigated rice was used to evaluate microbial and enzymatic activity in treatments with different levels of soil moisture, being: i) 60% of field capacity (FC) (60%FC); ii) 100% of FC (100%FC); iii) flooded soil with a 2 cm water layer above soil surface, and iv) soil kept at 60%FC with late flood after 29 days the incubation. The greater soil microbial activity was observed in the 100%FC treatment, being 41% greater than 60%FC treatment and only 2% higher than flooded treatment. The enzymatic activity data by fluorescein diacetate (FDA) hydrolysis corroborated the higher CO2 release in treatments with higher soil moisture content. Differently from the results reported, the main methodologies to evaluate microbial activity still recommend maintenance of the soil with a moisture content close to 60% of the FC. However, in lowland soil with history of frequent paddy fields, the maintenance of moisture close to 60% of the FC can limit the microbial activity. The soil respiration technique can be used to evaluate the microbial activity in flooded soil conditions. However, further studies should be conducted to understand the effect of the cultivation history on the microbial community of these environments. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-01-01 |
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=S0103-84782020000600252 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000600252 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/0103-8478cr20190831 |
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 |
Universidade Federal de Santa Maria |
publisher.none.fl_str_mv |
Universidade Federal de Santa Maria |
dc.source.none.fl_str_mv |
Ciência Rural v.50 n.6 2020 reponame:Ciência Rural instname:Universidade Federal de Santa Maria (UFSM) instacron:UFSM |
instname_str |
Universidade Federal de Santa Maria (UFSM) |
instacron_str |
UFSM |
institution |
UFSM |
reponame_str |
Ciência Rural |
collection |
Ciência Rural |
repository.name.fl_str_mv |
|
repository.mail.fl_str_mv |
|
_version_ |
1749140554775527424 |