Greenhouse gas emission, water quality and straw decomposition as a function of rice postharvest field management
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Bragantia |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052020000300305 |
Resumo: | ABSTRACT The objective of this paper was to evaluate the quality of water drained after the use of the knife-roller (an implement used to incorporate rice residues after harvest), the partial global warming potential (pGWP) and straw decomposition as a result of postharvest field management of irrigated rice. The experiments were conducted during the 2018 and 2019 offseason and the treatments consisted of several water drainage periods (0, 3, 6, 9 and 12 days) after a field pass with a knife-roller. In addition, a nonflooded harvest treatment without straw management was included. Analysis of drainage water three days after a pass with the kniferoller showed a reduction in total soluble solids by 94% compared to zero days. Nitrogen and soluble phosphorus were not influenced by the treatments. However, potassium levels increased as the drainage period increased, which is related to the period between harvest and drainage. As the electrical conductivity is influenced by the concentration of ions, it showed the same response curve as the potassium levels and, for pH, there were small oscillations influenced by the temperature. The total CH4 emission and the pGWP were higher when the water depth remained for a longer period. However, the N2O emissions were higher in the absence of soil submersion. Water should be drained three days after a pass with the knife-roller in order to reduce potassium loss and suspended solids as well as pGWP. The use of the knife-roller accelerated the process of straw decomposition in relation to the unmanaged straw treatment. |
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Greenhouse gas emission, water quality and straw decomposition as a function of rice postharvest field managementglobal warmingknife-rollermethanenitrous oxideOryza sativaABSTRACT The objective of this paper was to evaluate the quality of water drained after the use of the knife-roller (an implement used to incorporate rice residues after harvest), the partial global warming potential (pGWP) and straw decomposition as a result of postharvest field management of irrigated rice. The experiments were conducted during the 2018 and 2019 offseason and the treatments consisted of several water drainage periods (0, 3, 6, 9 and 12 days) after a field pass with a knife-roller. In addition, a nonflooded harvest treatment without straw management was included. Analysis of drainage water three days after a pass with the kniferoller showed a reduction in total soluble solids by 94% compared to zero days. Nitrogen and soluble phosphorus were not influenced by the treatments. However, potassium levels increased as the drainage period increased, which is related to the period between harvest and drainage. As the electrical conductivity is influenced by the concentration of ions, it showed the same response curve as the potassium levels and, for pH, there were small oscillations influenced by the temperature. The total CH4 emission and the pGWP were higher when the water depth remained for a longer period. However, the N2O emissions were higher in the absence of soil submersion. Water should be drained three days after a pass with the knife-roller in order to reduce potassium loss and suspended solids as well as pGWP. The use of the knife-roller accelerated the process of straw decomposition in relation to the unmanaged straw treatment.Instituto Agronômico de Campinas2020-09-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052020000300305Bragantia v.79 n.3 2020reponame:Bragantiainstname:Instituto Agronômico de Campinas (IAC)instacron:IAC10.1590/1678-4499.20190526info:eu-repo/semantics/openAccessSoares,Camille FloresMarchesan,EnioProchnow,Matias HenriqueFleck,Alisson GuilhermeOliveira,Daivyd Silva deRiste,Uashington da SilvaMinella,Jean Paolo GomesLúcio,Alessandro Dal’Coleng2020-08-31T00:00:00Zoai:scielo:S0006-87052020000300305Revistahttps://www.scielo.br/j/brag/https://old.scielo.br/oai/scielo-oai.phpbragantia@iac.sp.gov.br||bragantia@iac.sp.gov.br1678-44990006-8705opendoar:2020-08-31T00:00Bragantia - Instituto Agronômico de Campinas (IAC)false |
dc.title.none.fl_str_mv |
Greenhouse gas emission, water quality and straw decomposition as a function of rice postharvest field management |
title |
Greenhouse gas emission, water quality and straw decomposition as a function of rice postharvest field management |
spellingShingle |
Greenhouse gas emission, water quality and straw decomposition as a function of rice postharvest field management Soares,Camille Flores global warming knife-roller methane nitrous oxide Oryza sativa |
title_short |
Greenhouse gas emission, water quality and straw decomposition as a function of rice postharvest field management |
title_full |
Greenhouse gas emission, water quality and straw decomposition as a function of rice postharvest field management |
title_fullStr |
Greenhouse gas emission, water quality and straw decomposition as a function of rice postharvest field management |
title_full_unstemmed |
Greenhouse gas emission, water quality and straw decomposition as a function of rice postharvest field management |
title_sort |
Greenhouse gas emission, water quality and straw decomposition as a function of rice postharvest field management |
author |
Soares,Camille Flores |
author_facet |
Soares,Camille Flores Marchesan,Enio Prochnow,Matias Henrique Fleck,Alisson Guilherme Oliveira,Daivyd Silva de Riste,Uashington da Silva Minella,Jean Paolo Gomes Lúcio,Alessandro Dal’Col |
author_role |
author |
author2 |
Marchesan,Enio Prochnow,Matias Henrique Fleck,Alisson Guilherme Oliveira,Daivyd Silva de Riste,Uashington da Silva Minella,Jean Paolo Gomes Lúcio,Alessandro Dal’Col |
author2_role |
author author author author author author author |
dc.contributor.author.fl_str_mv |
Soares,Camille Flores Marchesan,Enio Prochnow,Matias Henrique Fleck,Alisson Guilherme Oliveira,Daivyd Silva de Riste,Uashington da Silva Minella,Jean Paolo Gomes Lúcio,Alessandro Dal’Col |
dc.subject.por.fl_str_mv |
global warming knife-roller methane nitrous oxide Oryza sativa |
topic |
global warming knife-roller methane nitrous oxide Oryza sativa |
description |
ABSTRACT The objective of this paper was to evaluate the quality of water drained after the use of the knife-roller (an implement used to incorporate rice residues after harvest), the partial global warming potential (pGWP) and straw decomposition as a result of postharvest field management of irrigated rice. The experiments were conducted during the 2018 and 2019 offseason and the treatments consisted of several water drainage periods (0, 3, 6, 9 and 12 days) after a field pass with a knife-roller. In addition, a nonflooded harvest treatment without straw management was included. Analysis of drainage water three days after a pass with the kniferoller showed a reduction in total soluble solids by 94% compared to zero days. Nitrogen and soluble phosphorus were not influenced by the treatments. However, potassium levels increased as the drainage period increased, which is related to the period between harvest and drainage. As the electrical conductivity is influenced by the concentration of ions, it showed the same response curve as the potassium levels and, for pH, there were small oscillations influenced by the temperature. The total CH4 emission and the pGWP were higher when the water depth remained for a longer period. However, the N2O emissions were higher in the absence of soil submersion. Water should be drained three days after a pass with the knife-roller in order to reduce potassium loss and suspended solids as well as pGWP. The use of the knife-roller accelerated the process of straw decomposition in relation to the unmanaged straw treatment. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-09-01 |
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=S0006-87052020000300305 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052020000300305 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/1678-4499.20190526 |
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 |
Instituto Agronômico de Campinas |
publisher.none.fl_str_mv |
Instituto Agronômico de Campinas |
dc.source.none.fl_str_mv |
Bragantia v.79 n.3 2020 reponame:Bragantia instname:Instituto Agronômico de Campinas (IAC) instacron:IAC |
instname_str |
Instituto Agronômico de Campinas (IAC) |
instacron_str |
IAC |
institution |
IAC |
reponame_str |
Bragantia |
collection |
Bragantia |
repository.name.fl_str_mv |
Bragantia - Instituto Agronômico de Campinas (IAC) |
repository.mail.fl_str_mv |
bragantia@iac.sp.gov.br||bragantia@iac.sp.gov.br |
_version_ |
1754193307853914112 |