Nitrogen dynamics in flooded soils, contamination of irrigation water, and yield of rice grains as a result of the applicaton of organic and chemical nitrogen fertilizers
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/667 |
Resumo: | This study aimed to monitor the formation and mobility of mineral N in the soils and to evaluate the effect of these fertilizers on rice yield and contamination of water with ammonium and nitrate. The experiment was carried out in the field at Epagri Experiment Station in Itajaí, SC, southern Brazil, during the 2008/09 and 2009/10 crop seasons. Poultry liter wasapplied in two forms: a) incorporated 30 days before sowing; b) on mudding, just before rice sowing. The urea was applied in two forms: a) urea in total dose incorporated on mudding just before sowing; b) urea split in three tmes (25, 50 and 80 days afer sowing). Also, we applied Entec 26® with half the dose incorporated on mudding and half 80 days afer sowing. The concentration of N-NH4+ in the soil reached high values in the frst weeks afer fertilizer applicaton and fell down 50 days afer sowing. The highest grain yield occurred in treatments with split urea and Entec 26® in the first season and with split urea and poultry liter in the last season. There was no contaminaton of the water by ammonium or nitrate. The early incorporation of nitrogen fertlizers tested is less efcient than split urea applicatons for the demand of N by rice plants. |
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Nitrogen dynamics in flooded soils, contamination of irrigation water, and yield of rice grains as a result of the applicaton of organic and chemical nitrogen fertilizersDinâmica do nitrogênio em solos alagados, contaminação da água de irrigação e rendimento de grãos de arroz em decorrência da aplicação de fertilizantes nitrogenados químicos e orgânicosNitrogen sourcesfertilizaton methodspaddy ricewater-sowing systemFontes de nitrogênioformas de adubaçãoarroz em sistema pré-germinadosolos inundadosThis study aimed to monitor the formation and mobility of mineral N in the soils and to evaluate the effect of these fertilizers on rice yield and contamination of water with ammonium and nitrate. The experiment was carried out in the field at Epagri Experiment Station in Itajaí, SC, southern Brazil, during the 2008/09 and 2009/10 crop seasons. Poultry liter wasapplied in two forms: a) incorporated 30 days before sowing; b) on mudding, just before rice sowing. The urea was applied in two forms: a) urea in total dose incorporated on mudding just before sowing; b) urea split in three tmes (25, 50 and 80 days afer sowing). Also, we applied Entec 26® with half the dose incorporated on mudding and half 80 days afer sowing. The concentration of N-NH4+ in the soil reached high values in the frst weeks afer fertilizer applicaton and fell down 50 days afer sowing. The highest grain yield occurred in treatments with split urea and Entec 26® in the first season and with split urea and poultry liter in the last season. There was no contaminaton of the water by ammonium or nitrate. The early incorporation of nitrogen fertlizers tested is less efcient than split urea applicatons for the demand of N by rice plants. Este trabalho teve por objetivo monitorar a formação e a mobilidade do N mineral no solo e avaliar o efeito dos fertilizantes no rendimento de grãos e na contaminação das águas por amônio e nitrato. O experimento foi conduzido no campo, na Epagri/Estação Experimental de Itajaí, nos anos agrícolas 2008/09 e 2009/10. Utilizou-se cama de aves em duasformas de aplicação: a) incorporada 30 dias antes da semeadura; b) incorporada na lama, na véspera da semeadura. Utilizou-se, também, ureia na dose total incorporada, na lama, na véspera da semeadura ou em três coberturas aos 25, 50 e 80 dias após a semeadura. Além desses, utilizou-se um tratamento com Entec 26®, sendo metade da dose incorporada na lama e metade aos 80 dias após a semeadura. A concentração de N-NH4+ no solo atingiu altos valores nas primeiras semanas após a incorporação dos fertlizantes, diminuindo para valores considerados irrisórios a partr dos 50 dias da semeadura. A maiorprodutvidade de grãos ocorreu nos tratamentos com ureia parcelada e Entec 26® na primeira safra, e com ureia parcelada e cama de aves na últma safra. Não houve contaminação das águas por amônio nem por nitrato. A incorporação antecipada dos fertilizantes nitrogenados testados é menos efciente do que as aplicações em cobertura para atender 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/667Agropecuária Catarinense Journal; Vol. 25 No. 3 (2012); 67-72Agropecuária Catarinense; v. 25 n. 3 (2012); 67-722525-60760103-0779reponame: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/667/568Copyright (c) 2020 Revista Agropecuária Catarinenseinfo:eu-repo/semantics/openAccessKnoblauch, RonaldirErnani, Paulo RobertoDeschamps, Francisco CarlosGatiboni, Luciano ColpoEberhardt, Domingos SávioStucker, Henri2021-02-17T14:31:52Zoai:ojs.publicacoes.epagri.sc.gov.br:article/667Revistahttps://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:2021-02-17T14:31:52Agropecuária Catarinense (Online) - Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina (Epagri)false |
dc.title.none.fl_str_mv |
Nitrogen dynamics in flooded soils, contamination of irrigation water, and yield of rice grains as a result of the applicaton of organic and chemical nitrogen fertilizers Dinâmica do nitrogênio em solos alagados, contaminação da água de irrigação e rendimento de grãos de arroz em decorrência da aplicação de fertilizantes nitrogenados químicos e orgânicos |
title |
Nitrogen dynamics in flooded soils, contamination of irrigation water, and yield of rice grains as a result of the applicaton of organic and chemical nitrogen fertilizers |
spellingShingle |
Nitrogen dynamics in flooded soils, contamination of irrigation water, and yield of rice grains as a result of the applicaton of organic and chemical nitrogen fertilizers Knoblauch, Ronaldir Nitrogen sources fertilizaton methods paddy rice water-sowing system Fontes de nitrogênio formas de adubação arroz em sistema pré-germinado solos inundados |
title_short |
Nitrogen dynamics in flooded soils, contamination of irrigation water, and yield of rice grains as a result of the applicaton of organic and chemical nitrogen fertilizers |
title_full |
Nitrogen dynamics in flooded soils, contamination of irrigation water, and yield of rice grains as a result of the applicaton of organic and chemical nitrogen fertilizers |
title_fullStr |
Nitrogen dynamics in flooded soils, contamination of irrigation water, and yield of rice grains as a result of the applicaton of organic and chemical nitrogen fertilizers |
title_full_unstemmed |
Nitrogen dynamics in flooded soils, contamination of irrigation water, and yield of rice grains as a result of the applicaton of organic and chemical nitrogen fertilizers |
title_sort |
Nitrogen dynamics in flooded soils, contamination of irrigation water, and yield of rice grains as a result of the applicaton of organic and chemical nitrogen fertilizers |
author |
Knoblauch, Ronaldir |
author_facet |
Knoblauch, Ronaldir Ernani, Paulo Roberto Deschamps, Francisco Carlos Gatiboni, Luciano Colpo Eberhardt, Domingos Sávio Stucker, Henri |
author_role |
author |
author2 |
Ernani, Paulo Roberto Deschamps, Francisco Carlos Gatiboni, Luciano Colpo Eberhardt, Domingos Sávio Stucker, Henri |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Knoblauch, Ronaldir Ernani, Paulo Roberto Deschamps, Francisco Carlos Gatiboni, Luciano Colpo Eberhardt, Domingos Sávio Stucker, Henri |
dc.subject.por.fl_str_mv |
Nitrogen sources fertilizaton methods paddy rice water-sowing system Fontes de nitrogênio formas de adubação arroz em sistema pré-germinado solos inundados |
topic |
Nitrogen sources fertilizaton methods paddy rice water-sowing system Fontes de nitrogênio formas de adubação arroz em sistema pré-germinado solos inundados |
description |
This study aimed to monitor the formation and mobility of mineral N in the soils and to evaluate the effect of these fertilizers on rice yield and contamination of water with ammonium and nitrate. The experiment was carried out in the field at Epagri Experiment Station in Itajaí, SC, southern Brazil, during the 2008/09 and 2009/10 crop seasons. Poultry liter wasapplied in two forms: a) incorporated 30 days before sowing; b) on mudding, just before rice sowing. The urea was applied in two forms: a) urea in total dose incorporated on mudding just before sowing; b) urea split in three tmes (25, 50 and 80 days afer sowing). Also, we applied Entec 26® with half the dose incorporated on mudding and half 80 days afer sowing. The concentration of N-NH4+ in the soil reached high values in the frst weeks afer fertilizer applicaton and fell down 50 days afer sowing. The highest grain yield occurred in treatments with split urea and Entec 26® in the first season and with split urea and poultry liter in the last season. There was no contaminaton of the water by ammonium or nitrate. The early incorporation of nitrogen fertlizers tested is less efcient than split urea applicatons for the demand of N 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/667 |
url |
https://publicacoes.epagri.sc.gov.br/rac/article/view/667 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://publicacoes.epagri.sc.gov.br/rac/article/view/667/568 |
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. 25 No. 3 (2012); 67-72 Agropecuária Catarinense; v. 25 n. 3 (2012); 67-72 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_ |
1754917259467292672 |