Nitrogen dynamics in flooded soil resulting from the application of urea and poultry litter in the presence and absence of rice plants
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Agropecuária Catarinense (Online) |
Texto Completo: | https://publicacoes.epagri.sc.gov.br/rac/article/view/613 |
Resumo: | The objective of this study was to monitor the formation of ammonium (NH4 + ) and nitrate (NO3 - ) in flooded soil and to measure N recovery by rice plants after the application of urea and poultry litter in pots in a greenhouse with the use of an Entisol Aeric. The treatments were: poultry litter incorporated into the soil 10 days before flooding, and urea in two forms of application: a) the whole dose in the formation of the mudding, before rice sowing; and b) the dose split in three times (30, 50 and 70 days after rice sowing) and a control (no N). The dose of N was equivalent to 200mg/kg of soil in all treatments. To each treatment four buckets were cultivated with rice and four remained without plants. After flooding, the N-NH4 + concentration in the soil increased in all treatments, including control (no N), being higher when the urea was incorporated into the soil followed by poultry litter. However, throughout the experimental period the highest N-NH4 + concentration occurred when urea was applied in split form. The N-NO3 - present in the soil was completely lost in less than a week after soil flooding. The highest rates of N recovery by plants occurred when the urea was applied in split form with 62% followed by poultry litter, and incorporated urea with 22% and 20% respectively. N-fertilizers applied before rice sowing are less efficient than split N to supply N demands by rice plants. |
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Agropecuária Catarinense (Online) |
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Nitrogen dynamics in flooded soil resulting from the application of urea and poultry litter in the presence and absence of rice plantsDinâmica do nitrogênio em solo alagado decorrente da aplicação de ureia e cama de aves na presença e na ausência de plantas de arrozArroz irrigadoOryza sativaadubaçãofertilizantes nitrogenadosThe objective of this study was to monitor the formation of ammonium (NH4 + ) and nitrate (NO3 - ) in flooded soil and to measure N recovery by rice plants after the application of urea and poultry litter in pots in a greenhouse with the use of an Entisol Aeric. The treatments were: poultry litter incorporated into the soil 10 days before flooding, and urea in two forms of application: a) the whole dose in the formation of the mudding, before rice sowing; and b) the dose split in three times (30, 50 and 70 days after rice sowing) and a control (no N). The dose of N was equivalent to 200mg/kg of soil in all treatments. To each treatment four buckets were cultivated with rice and four remained without plants. After flooding, the N-NH4 + concentration in the soil increased in all treatments, including control (no N), being higher when the urea was incorporated into the soil followed by poultry litter. However, throughout the experimental period the highest N-NH4 + concentration occurred when urea was applied in split form. The N-NO3 - present in the soil was completely lost in less than a week after soil flooding. The highest rates of N recovery by plants occurred when the urea was applied in split form with 62% followed by poultry litter, and incorporated urea with 22% and 20% respectively. N-fertilizers applied before rice sowing are less efficient than split N to supply N demands by rice plants.O objetivo deste trabalho foi monitorar a formação de amônio (NH4+) e nitrato (NO3-) em solo alagado e mensurar a recuperação do N pelas plantas de arroz após a aplicação de ureia e de cama de aves, em vasos, em um Gleissolo Háplico distrófco. Utlizou-se cama de aves incorporada ao solo 10 dias antes da semeadura do arroz, e a dose de ureia em duas formas de aplicação: a) toda a dose na formação da lama antes da semeadura do arroz; e b) dose parcelada em três coberturas aos 20, 45 e 70 dias após a semeadura do arroz, além de uma testemunha sem N. A dose de N foi equivalente a 200mg/kg de solo em todos os tratamentos. Para cada tratamento, quatro vasos foram cultvados com arroz e quatro permaneceram sem plantas. Os teores de N-NH4+ no solo, após o alagamento, aumentaram em todos os tratamentos, inclusive na testemunha (sem N), sendo maiores nos tratamentos com ureia incorporada ao solo seguido pela cama de aves. Todavia, ao longo do tempo, maiores concentrações de N-NH4+ ocorreram quando a ureia foi parcelada. A quantdade de N-NO3- presente no solo foi totalmenteperdida em menos de uma semana após o alagamento. Os maiores índices de recuperação de N pelas plantas ocorreram quando a ureia foi aplicada de forma parcelada (62%), seguido pela cama de aves e pela ureia incorporada ao solo com 22% e 20% respectvamente. Os fertilizantes nitrogenados, aplicados antes da semeadura do arroz são menos efcientes do que o N parcelado para suprir a demanda de N pelas plantas. Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina - Epagri2020-04-28info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://publicacoes.epagri.sc.gov.br/rac/article/view/613Agropecuária Catarinense Journal; Vol. 26 No. 2 (2013); 79-84Agropecuária Catarinense; v. 26 n. 2 (2013); 79-842525-60760103-0779reponame:Agropecuária Catarinense (Online)instname:Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina (Epagri)instacron:EPAGRIporhttps://publicacoes.epagri.sc.gov.br/rac/article/view/613/515Copyright (c) 2020 Revista Agropecuária Catarinenseinfo:eu-repo/semantics/openAccessKnoblauch, RonaldirErnani, Paulo RobertiGatiboni, Luciano ColpoAlbuquerque, Jackson AdrianoLourenço, Késia SilvaMartins, Acácio Agostinho2021-02-17T13:28:28Zoai:ojs.publicacoes.epagri.sc.gov.br:article/613Revistahttps://publicacoes.epagri.sc.gov.br/RAC/indexPUBhttps://publicacoes.epagri.sc.gov.br/index.php/RAC/oaieditoriarac@epagri.sc.gov.br || lamperuch@epagri.sc.gov.br2525-60760103-0779opendoar:2021-02-17T13:28:28Agropecuária Catarinense (Online) - Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina (Epagri)false |
dc.title.none.fl_str_mv |
Nitrogen dynamics in flooded soil resulting from the application of urea and poultry litter in the presence and absence of rice plants Dinâmica do nitrogênio em solo alagado decorrente da aplicação de ureia e cama de aves na presença e na ausência de plantas de arroz |
title |
Nitrogen dynamics in flooded soil resulting from the application of urea and poultry litter in the presence and absence of rice plants |
spellingShingle |
Nitrogen dynamics in flooded soil resulting from the application of urea and poultry litter in the presence and absence of rice plants Knoblauch, Ronaldir Arroz irrigado Oryza sativa adubação fertilizantes nitrogenados |
title_short |
Nitrogen dynamics in flooded soil resulting from the application of urea and poultry litter in the presence and absence of rice plants |
title_full |
Nitrogen dynamics in flooded soil resulting from the application of urea and poultry litter in the presence and absence of rice plants |
title_fullStr |
Nitrogen dynamics in flooded soil resulting from the application of urea and poultry litter in the presence and absence of rice plants |
title_full_unstemmed |
Nitrogen dynamics in flooded soil resulting from the application of urea and poultry litter in the presence and absence of rice plants |
title_sort |
Nitrogen dynamics in flooded soil resulting from the application of urea and poultry litter in the presence and absence of rice plants |
author |
Knoblauch, Ronaldir |
author_facet |
Knoblauch, Ronaldir Ernani, Paulo Roberti Gatiboni, Luciano Colpo Albuquerque, Jackson Adriano Lourenço, Késia Silva Martins, Acácio Agostinho |
author_role |
author |
author2 |
Ernani, Paulo Roberti Gatiboni, Luciano Colpo Albuquerque, Jackson Adriano Lourenço, Késia Silva Martins, Acácio Agostinho |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Knoblauch, Ronaldir Ernani, Paulo Roberti Gatiboni, Luciano Colpo Albuquerque, Jackson Adriano Lourenço, Késia Silva Martins, Acácio Agostinho |
dc.subject.por.fl_str_mv |
Arroz irrigado Oryza sativa adubação fertilizantes nitrogenados |
topic |
Arroz irrigado Oryza sativa adubação fertilizantes nitrogenados |
description |
The objective of this study was to monitor the formation of ammonium (NH4 + ) and nitrate (NO3 - ) in flooded soil and to measure N recovery by rice plants after the application of urea and poultry litter in pots in a greenhouse with the use of an Entisol Aeric. The treatments were: poultry litter incorporated into the soil 10 days before flooding, and urea in two forms of application: a) the whole dose in the formation of the mudding, before rice sowing; and b) the dose split in three times (30, 50 and 70 days after rice sowing) and a control (no N). The dose of N was equivalent to 200mg/kg of soil in all treatments. To each treatment four buckets were cultivated with rice and four remained without plants. After flooding, the N-NH4 + concentration in the soil increased in all treatments, including control (no N), being higher when the urea was incorporated into the soil followed by poultry litter. However, throughout the experimental period the highest N-NH4 + concentration occurred when urea was applied in split form. The N-NO3 - present in the soil was completely lost in less than a week after soil flooding. The highest rates of N recovery by plants occurred when the urea was applied in split form with 62% followed by poultry litter, and incorporated urea with 22% and 20% respectively. N-fertilizers applied before rice sowing are less efficient than split N to supply N demands by rice plants. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-04-28 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://publicacoes.epagri.sc.gov.br/rac/article/view/613 |
url |
https://publicacoes.epagri.sc.gov.br/rac/article/view/613 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://publicacoes.epagri.sc.gov.br/rac/article/view/613/515 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2020 Revista Agropecuária Catarinense info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2020 Revista Agropecuária Catarinense |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina - Epagri |
publisher.none.fl_str_mv |
Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina - Epagri |
dc.source.none.fl_str_mv |
Agropecuária Catarinense Journal; Vol. 26 No. 2 (2013); 79-84 Agropecuária Catarinense; v. 26 n. 2 (2013); 79-84 2525-6076 0103-0779 reponame:Agropecuária Catarinense (Online) instname:Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina (Epagri) instacron:EPAGRI |
instname_str |
Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina (Epagri) |
instacron_str |
EPAGRI |
institution |
EPAGRI |
reponame_str |
Agropecuária Catarinense (Online) |
collection |
Agropecuária Catarinense (Online) |
repository.name.fl_str_mv |
Agropecuária Catarinense (Online) - Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina (Epagri) |
repository.mail.fl_str_mv |
editoriarac@epagri.sc.gov.br || lamperuch@epagri.sc.gov.br |
_version_ |
1754917259386552320 |