Root extracts of Bracchiaria humidicola andSaccharum spontaneum to increase N use by sugarcane
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Scientia Agrícola (Online) |
Texto Completo: | https://www.revistas.usp.br/sa/article/view/108532 |
Resumo: | Retaining the mineral N in the form of NH4+ in the soil for a lengthy period is desirable for reducing losses. Furthermore, there is evidence that sugarcane prefers NH4+-N in place of NO3−-N. This study aimed firstly, to evaluate the potential of root extracts of Bracchiaria humidicola andSaccharum spontaneum, in contrast with the DCD (Dicyandiamide) inhibitor, to increase absorption of N by plants fertilized with ammonium sulfate, and secondly, to quantify the emission of N2O fluxes with the use of this inhibitor. The experiment was developed in a glasshouse in an entirely randomized design where four treatments were applied: AS) ammonium sulfate (control); AS+DCD) ammonium sulfate associated with dicyandiamide; AS+BCH) ammonium sulfate associated with root extracts ofBrachiaria humidicola; and AS+SCS) ammonium sulfate associated with root extracts of Saccharum spontaneum. Differences were observed in biomass production in plants 45 and 60 days after fertilization (DAF) and 15 and 60 days in biomass accumulation of roots. The application of AS associated with DCD synthetic inhibitor kept NO3−-N values low throughout the evaluation period, while in other treatments the concentration increased right up to the second evaluation 15 DAF. Sugarcane plants did not benefit from the increased presence of ammoniacal N promoted by DCD. The use of DCD reduced the average flux of N2O during the evaluation period compared to plants receiving AS treatments only, which was not observed when root extracts of B. humidicola and S. spontaneum were used. |
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Scientia Agrícola (Online) |
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Root extracts of Bracchiaria humidicola andSaccharum spontaneum to increase N use by sugarcane Retaining the mineral N in the form of NH4+ in the soil for a lengthy period is desirable for reducing losses. Furthermore, there is evidence that sugarcane prefers NH4+-N in place of NO3−-N. This study aimed firstly, to evaluate the potential of root extracts of Bracchiaria humidicola andSaccharum spontaneum, in contrast with the DCD (Dicyandiamide) inhibitor, to increase absorption of N by plants fertilized with ammonium sulfate, and secondly, to quantify the emission of N2O fluxes with the use of this inhibitor. The experiment was developed in a glasshouse in an entirely randomized design where four treatments were applied: AS) ammonium sulfate (control); AS+DCD) ammonium sulfate associated with dicyandiamide; AS+BCH) ammonium sulfate associated with root extracts ofBrachiaria humidicola; and AS+SCS) ammonium sulfate associated with root extracts of Saccharum spontaneum. Differences were observed in biomass production in plants 45 and 60 days after fertilization (DAF) and 15 and 60 days in biomass accumulation of roots. The application of AS associated with DCD synthetic inhibitor kept NO3−-N values low throughout the evaluation period, while in other treatments the concentration increased right up to the second evaluation 15 DAF. Sugarcane plants did not benefit from the increased presence of ammoniacal N promoted by DCD. The use of DCD reduced the average flux of N2O during the evaluation period compared to plants receiving AS treatments only, which was not observed when root extracts of B. humidicola and S. spontaneum were used. Universidade de São Paulo. Escola Superior de Agricultura Luiz de Queiroz2016-02-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://www.revistas.usp.br/sa/article/view/10853210.1590/0103-9016-2015-0093Scientia Agricola; v. 73 n. 1 (2016); 34-42Scientia Agricola; Vol. 73 Núm. 1 (2016); 34-42Scientia Agricola; Vol. 73 No. 1 (2016); 34-421678-992X0103-9016reponame:Scientia Agrícola (Online)instname:Universidade de São Paulo (USP)instacron:USPenghttps://www.revistas.usp.br/sa/article/view/108532/106849Copyright (c) 2015 Scientia Agricolainfo:eu-repo/semantics/openAccessKölln, Oriel TiagoFranco, Henrique Coutinho JunqueiraFerreira, Danilo AlvesVargas, Vitor PauloCastro, Saulo Augusto de QuassiCantarella, HeitorCaldana, CamilaTrivelin, Paulo Cesar Ocheuze2015-12-16T11:23:23Zoai:revistas.usp.br:article/108532Revistahttp://revistas.usp.br/sa/indexPUBhttps://old.scielo.br/oai/scielo-oai.phpscientia@usp.br||alleoni@usp.br1678-992X0103-9016opendoar:2015-12-16T11:23:23Scientia Agrícola (Online) - Universidade de São Paulo (USP)false |
dc.title.none.fl_str_mv |
Root extracts of Bracchiaria humidicola andSaccharum spontaneum to increase N use by sugarcane |
title |
Root extracts of Bracchiaria humidicola andSaccharum spontaneum to increase N use by sugarcane |
spellingShingle |
Root extracts of Bracchiaria humidicola andSaccharum spontaneum to increase N use by sugarcane Kölln, Oriel Tiago |
title_short |
Root extracts of Bracchiaria humidicola andSaccharum spontaneum to increase N use by sugarcane |
title_full |
Root extracts of Bracchiaria humidicola andSaccharum spontaneum to increase N use by sugarcane |
title_fullStr |
Root extracts of Bracchiaria humidicola andSaccharum spontaneum to increase N use by sugarcane |
title_full_unstemmed |
Root extracts of Bracchiaria humidicola andSaccharum spontaneum to increase N use by sugarcane |
title_sort |
Root extracts of Bracchiaria humidicola andSaccharum spontaneum to increase N use by sugarcane |
author |
Kölln, Oriel Tiago |
author_facet |
Kölln, Oriel Tiago Franco, Henrique Coutinho Junqueira Ferreira, Danilo Alves Vargas, Vitor Paulo Castro, Saulo Augusto de Quassi Cantarella, Heitor Caldana, Camila Trivelin, Paulo Cesar Ocheuze |
author_role |
author |
author2 |
Franco, Henrique Coutinho Junqueira Ferreira, Danilo Alves Vargas, Vitor Paulo Castro, Saulo Augusto de Quassi Cantarella, Heitor Caldana, Camila Trivelin, Paulo Cesar Ocheuze |
author2_role |
author author author author author author author |
dc.contributor.author.fl_str_mv |
Kölln, Oriel Tiago Franco, Henrique Coutinho Junqueira Ferreira, Danilo Alves Vargas, Vitor Paulo Castro, Saulo Augusto de Quassi Cantarella, Heitor Caldana, Camila Trivelin, Paulo Cesar Ocheuze |
description |
Retaining the mineral N in the form of NH4+ in the soil for a lengthy period is desirable for reducing losses. Furthermore, there is evidence that sugarcane prefers NH4+-N in place of NO3−-N. This study aimed firstly, to evaluate the potential of root extracts of Bracchiaria humidicola andSaccharum spontaneum, in contrast with the DCD (Dicyandiamide) inhibitor, to increase absorption of N by plants fertilized with ammonium sulfate, and secondly, to quantify the emission of N2O fluxes with the use of this inhibitor. The experiment was developed in a glasshouse in an entirely randomized design where four treatments were applied: AS) ammonium sulfate (control); AS+DCD) ammonium sulfate associated with dicyandiamide; AS+BCH) ammonium sulfate associated with root extracts ofBrachiaria humidicola; and AS+SCS) ammonium sulfate associated with root extracts of Saccharum spontaneum. Differences were observed in biomass production in plants 45 and 60 days after fertilization (DAF) and 15 and 60 days in biomass accumulation of roots. The application of AS associated with DCD synthetic inhibitor kept NO3−-N values low throughout the evaluation period, while in other treatments the concentration increased right up to the second evaluation 15 DAF. Sugarcane plants did not benefit from the increased presence of ammoniacal N promoted by DCD. The use of DCD reduced the average flux of N2O during the evaluation period compared to plants receiving AS treatments only, which was not observed when root extracts of B. humidicola and S. spontaneum were used. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-02-01 |
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://www.revistas.usp.br/sa/article/view/108532 10.1590/0103-9016-2015-0093 |
url |
https://www.revistas.usp.br/sa/article/view/108532 |
identifier_str_mv |
10.1590/0103-9016-2015-0093 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://www.revistas.usp.br/sa/article/view/108532/106849 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2015 Scientia Agricola info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2015 Scientia Agricola |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade de São Paulo. Escola Superior de Agricultura Luiz de Queiroz |
publisher.none.fl_str_mv |
Universidade de São Paulo. Escola Superior de Agricultura Luiz de Queiroz |
dc.source.none.fl_str_mv |
Scientia Agricola; v. 73 n. 1 (2016); 34-42 Scientia Agricola; Vol. 73 Núm. 1 (2016); 34-42 Scientia Agricola; Vol. 73 No. 1 (2016); 34-42 1678-992X 0103-9016 reponame:Scientia Agrícola (Online) instname:Universidade de São Paulo (USP) instacron:USP |
instname_str |
Universidade de São Paulo (USP) |
instacron_str |
USP |
institution |
USP |
reponame_str |
Scientia Agrícola (Online) |
collection |
Scientia Agrícola (Online) |
repository.name.fl_str_mv |
Scientia Agrícola (Online) - Universidade de São Paulo (USP) |
repository.mail.fl_str_mv |
scientia@usp.br||alleoni@usp.br |
_version_ |
1800222792793194496 |