Performance of paddy rice in response to the use of nitrogen-fixing cyanobacteria - DOI: 10.4025/actasciagron.v29i1.67

Detalhes bibliográficos
Autor(a) principal: Marchesan, Enio
Data de Publicação: 2007
Outros Autores: Santos, Fernando Machado dos, Avila, Luis Antonio de, Camargo, Edinalvo Rabaioli, Martin, Thomas Newton, Brenzoni, Edgardo Oscar
Tipo de documento: Artigo
Idioma: por
Título da fonte: Acta Scientiarum. Agronomy (Online)
Texto Completo: http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/67
Resumo: A four-year experiment irrigated rice was carried out in order to evaluate the performance of Nostoc sp. and Tolypothrix sp. nitrogen-fixing cyanobacteria strains (Rizogram™), as an alternative to chemical nitrogen fertilization in irrigated rice. The treatments evaluated in the experiments included: control without top dressing N application; top dressing application of 20, 40 and 90 kg ha-1; 50 g ha-1 of Rizogram™, and 100 g ha-1 of Rizogram™. It was verified interaction between the years of the study and the treatments, which may have affected the performance of these treatments. Moreover, it was observed that, for the number of grains per panicle, the use of cyanobacteria in two studied rates (50 e 100 g ha-1) produced the same results as the nitrogen fertilization (90 kg ha-1), showing potential reduction of sterile spikelets. However, the treatments did not affected rice grain yield.
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spelling Performance of paddy rice in response to the use of nitrogen-fixing cyanobacteria - DOI: 10.4025/actasciagron.v29i1.67Desempenho do arroz irrigado em resposta à utilização de cianobactérias fixadoras de nitrogênio - DOI: 10.4025/actasciagron.v29i1.67Oryza sativa L.biofertilizantefixação biológica de nitrogênioA four-year experiment irrigated rice was carried out in order to evaluate the performance of Nostoc sp. and Tolypothrix sp. nitrogen-fixing cyanobacteria strains (Rizogram™), as an alternative to chemical nitrogen fertilization in irrigated rice. The treatments evaluated in the experiments included: control without top dressing N application; top dressing application of 20, 40 and 90 kg ha-1; 50 g ha-1 of Rizogram™, and 100 g ha-1 of Rizogram™. It was verified interaction between the years of the study and the treatments, which may have affected the performance of these treatments. Moreover, it was observed that, for the number of grains per panicle, the use of cyanobacteria in two studied rates (50 e 100 g ha-1) produced the same results as the nitrogen fertilization (90 kg ha-1), showing potential reduction of sterile spikelets. However, the treatments did not affected rice grain yield.O objetivo do presente estudo foi avaliar a utilização de inóculos de cianobactérias fixadoras de nitrogênio como alternativa à adubação química de nitrogênio na cultura do arroz irrigado. Para tanto, foram conduzidos quatro experimentos, nos anos agrícolas de 1999/00 a 2002/03, avaliando os tratamentos: testemunha sem aplicação de N em cobertura; 20 kg ha-1 de N aplicado em cobertura; 40 kg ha-1 de N aplicado em cobertura; 90 kg ha-1 de N aplicado em cobertura; 50 g ha-1 de Rizogram®; 100 g ha-1 de Rizogram®. Verificou-se interação dos tratamentos com os anos avaliados, o que pode ter ocultado o desempenho destes. Além disso, verificou-se que, para a variável “número de grãos por panícula”, a utilização de cianobactérias nas duas dosagens estudadas (50 e 100 g ha-1) produziu resultados semelhantes à adubação nitrogenada (90 kg ha-1), com potencial redução do número porcentual de espiguetas estéreis. Os tratamentos não afetaram o rendimento de grãos do arroz irrigado, devido às variações ambientais dos anos avaliados.Universidade Estadual de Maringá2007-08-20info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/6710.4025/actasciagron.v29i1.67Acta Scientiarum. Agronomy; Vol 29 No 1 (2007); 63-68Acta Scientiarum. Agronomy; v. 29 n. 1 (2007); 63-681807-86211679-9275reponame:Acta Scientiarum. Agronomy (Online)instname:Universidade Estadual de Maringá (UEM)instacron:UEMporhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/67/30Marchesan, EnioSantos, Fernando Machado dosAvila, Luis Antonio deCamargo, Edinalvo RabaioliMartin, Thomas NewtonBrenzoni, Edgardo Oscarinfo:eu-repo/semantics/openAccess2022-11-23T18:37:00Zoai:periodicos.uem.br/ojs:article/67Revistahttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgronPUBhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/oaiactaagron@uem.br||actaagron@uem.br|| edamasio@uem.br1807-86211679-9275opendoar:2022-11-23T18:37Acta Scientiarum. Agronomy (Online) - Universidade Estadual de Maringá (UEM)false
dc.title.none.fl_str_mv Performance of paddy rice in response to the use of nitrogen-fixing cyanobacteria - DOI: 10.4025/actasciagron.v29i1.67
Desempenho do arroz irrigado em resposta à utilização de cianobactérias fixadoras de nitrogênio - DOI: 10.4025/actasciagron.v29i1.67
title Performance of paddy rice in response to the use of nitrogen-fixing cyanobacteria - DOI: 10.4025/actasciagron.v29i1.67
spellingShingle Performance of paddy rice in response to the use of nitrogen-fixing cyanobacteria - DOI: 10.4025/actasciagron.v29i1.67
Marchesan, Enio
Oryza sativa L.
biofertilizante
fixação biológica de nitrogênio
title_short Performance of paddy rice in response to the use of nitrogen-fixing cyanobacteria - DOI: 10.4025/actasciagron.v29i1.67
title_full Performance of paddy rice in response to the use of nitrogen-fixing cyanobacteria - DOI: 10.4025/actasciagron.v29i1.67
title_fullStr Performance of paddy rice in response to the use of nitrogen-fixing cyanobacteria - DOI: 10.4025/actasciagron.v29i1.67
title_full_unstemmed Performance of paddy rice in response to the use of nitrogen-fixing cyanobacteria - DOI: 10.4025/actasciagron.v29i1.67
title_sort Performance of paddy rice in response to the use of nitrogen-fixing cyanobacteria - DOI: 10.4025/actasciagron.v29i1.67
author Marchesan, Enio
author_facet Marchesan, Enio
Santos, Fernando Machado dos
Avila, Luis Antonio de
Camargo, Edinalvo Rabaioli
Martin, Thomas Newton
Brenzoni, Edgardo Oscar
author_role author
author2 Santos, Fernando Machado dos
Avila, Luis Antonio de
Camargo, Edinalvo Rabaioli
Martin, Thomas Newton
Brenzoni, Edgardo Oscar
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Marchesan, Enio
Santos, Fernando Machado dos
Avila, Luis Antonio de
Camargo, Edinalvo Rabaioli
Martin, Thomas Newton
Brenzoni, Edgardo Oscar
dc.subject.por.fl_str_mv Oryza sativa L.
biofertilizante
fixação biológica de nitrogênio
topic Oryza sativa L.
biofertilizante
fixação biológica de nitrogênio
description A four-year experiment irrigated rice was carried out in order to evaluate the performance of Nostoc sp. and Tolypothrix sp. nitrogen-fixing cyanobacteria strains (Rizogram™), as an alternative to chemical nitrogen fertilization in irrigated rice. The treatments evaluated in the experiments included: control without top dressing N application; top dressing application of 20, 40 and 90 kg ha-1; 50 g ha-1 of Rizogram™, and 100 g ha-1 of Rizogram™. It was verified interaction between the years of the study and the treatments, which may have affected the performance of these treatments. Moreover, it was observed that, for the number of grains per panicle, the use of cyanobacteria in two studied rates (50 e 100 g ha-1) produced the same results as the nitrogen fertilization (90 kg ha-1), showing potential reduction of sterile spikelets. However, the treatments did not affected rice grain yield.
publishDate 2007
dc.date.none.fl_str_mv 2007-08-20
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
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dc.identifier.uri.fl_str_mv http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/67
10.4025/actasciagron.v29i1.67
url http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/67
identifier_str_mv 10.4025/actasciagron.v29i1.67
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/67/30
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade Estadual de Maringá
publisher.none.fl_str_mv Universidade Estadual de Maringá
dc.source.none.fl_str_mv Acta Scientiarum. Agronomy; Vol 29 No 1 (2007); 63-68
Acta Scientiarum. Agronomy; v. 29 n. 1 (2007); 63-68
1807-8621
1679-9275
reponame:Acta Scientiarum. Agronomy (Online)
instname:Universidade Estadual de Maringá (UEM)
instacron:UEM
instname_str Universidade Estadual de Maringá (UEM)
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reponame_str Acta Scientiarum. Agronomy (Online)
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repository.name.fl_str_mv Acta Scientiarum. Agronomy (Online) - Universidade Estadual de Maringá (UEM)
repository.mail.fl_str_mv actaagron@uem.br||actaagron@uem.br|| edamasio@uem.br
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