Nitrogen application in the maize, under no tillage system: effects in the soil physical quality and agronomics characteristics
Autor(a) principal: | |
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Data de Publicação: | 2013 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Semina. Ciências Agrárias (Online) |
Texto Completo: | https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/12904 |
Resumo: | This research was developed in the experimental area of ESALQ-USP, city of Piracicaba , state of Sao Paulo, in a soil of sandy-clay texture and aimed to evaluate the soil physical quality and maize agronomic characteristics with maize crop under different N doses and different tillage systems. The experimental design consisted of randomized blocks with four replicates. Treatments consisted of three nitrogen doses (N) (60, 120, and 180 kg ha-1) and a control. The ammonium sulfate fertilizer was applied at 30 kg ha-1 N during seeding, and the rest was applied as sidedressing when the plants had between six and eight leaves. Were determined the bulk density, microporosity, macroporosity and total porosity of soil, at depths of 0.05, 0.15, 0.25, 0.35 m, and the maize components yield. The soil physical properties tend to change over time and N levels, especially with regard to soil macroporosity and microporosity, conditioned by the structural change of the soil. |
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Nitrogen application in the maize, under no tillage system: effects in the soil physical quality and agronomics characteristicsAplicação de nitrogênio no cultivo de milho, sob sistema plantio direto: efeitos na qualidade física do solo e características agronômicasSoil managementCrop successionFertilizationSoil physical properties.Solos e Nutrição de PlantasManejo do soloSucessão de culturasAdubaçãoPropriedades físicas.Solos e Nutrição de PlantasThis research was developed in the experimental area of ESALQ-USP, city of Piracicaba , state of Sao Paulo, in a soil of sandy-clay texture and aimed to evaluate the soil physical quality and maize agronomic characteristics with maize crop under different N doses and different tillage systems. The experimental design consisted of randomized blocks with four replicates. Treatments consisted of three nitrogen doses (N) (60, 120, and 180 kg ha-1) and a control. The ammonium sulfate fertilizer was applied at 30 kg ha-1 N during seeding, and the rest was applied as sidedressing when the plants had between six and eight leaves. Were determined the bulk density, microporosity, macroporosity and total porosity of soil, at depths of 0.05, 0.15, 0.25, 0.35 m, and the maize components yield. The soil physical properties tend to change over time and N levels, especially with regard to soil macroporosity and microporosity, conditioned by the structural change of the soil.O presente trabalho foi desenvolvido em área experimental da ESALQ-USP, município de Piracicaba/ SP, em um solo de textura areno-argilosa e teve por objetivo avaliar a qualidade física do solo e características agronômicas do milho submetido a diferentes doses de nitrogênio (N), sob sistema de plantio direto. O delineamento experimental foi em blocos casualizados com quatro tratamentos e quatro repetições. Os tratamentos constaram de doses de N, na forma de sulfato de amônio (0, 60, 120 e 180 kg ha-1 de N), sendo 30 kg ha-1 de N na semeadura e o restante em cobertura, no estádio de 6 a 8 folhas, aplicados no milho e 1 sucessão de cultura (aveia preta-milho-tremoço branco-milho). Foram avaliados após os cultivos, densidade, microporosidade, macroporosidade e porosidade total do solo, nas camadas de 0,05, 0,15, 0,25, 0,35 m; altura de plantas, números de grãos por fileira e número de fileira por espiga, massa da matéria seca das plantas e rendimento de grãos de milho. Pelos resultados obtidos, conclui-se que as propriedades físicas do solo apresentam tendências de mudança com as doses de N e com o decorrer do tempo, principalmente no que se refere à macro e microporosidade do solo, condicionadas pela alteração estrutural do solo.UEL2013-12-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionPesquisa de campoPesquisa de campoapplication/pdfhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/1290410.5433/1679-0359.2013v34n6Supl1p3513Semina: Ciências Agrárias; Vol. 34 No. 6Supl1 (2013); 3513-3528Semina: Ciências Agrárias; v. 34 n. 6Supl1 (2013); 3513-35281679-03591676-546Xreponame:Semina. Ciências Agrárias (Online)instname:Universidade Estadual de Londrina (UEL)instacron:UELporhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/12904/pdf_86Silva, Flávia CarvalhoSilva, Monica Martins daLibardi, Paulo Leonelinfo:eu-repo/semantics/openAccess2015-11-19T18:36:14Zoai:ojs.pkp.sfu.ca:article/12904Revistahttp://www.uel.br/revistas/uel/index.php/semagrariasPUBhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/oaisemina.agrarias@uel.br1679-03591676-546Xopendoar:2015-11-19T18:36:14Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)false |
dc.title.none.fl_str_mv |
Nitrogen application in the maize, under no tillage system: effects in the soil physical quality and agronomics characteristics Aplicação de nitrogênio no cultivo de milho, sob sistema plantio direto: efeitos na qualidade física do solo e características agronômicas |
title |
Nitrogen application in the maize, under no tillage system: effects in the soil physical quality and agronomics characteristics |
spellingShingle |
Nitrogen application in the maize, under no tillage system: effects in the soil physical quality and agronomics characteristics Silva, Flávia Carvalho Soil management Crop succession Fertilization Soil physical properties. Solos e Nutrição de Plantas Manejo do solo Sucessão de culturas Adubação Propriedades físicas. Solos e Nutrição de Plantas |
title_short |
Nitrogen application in the maize, under no tillage system: effects in the soil physical quality and agronomics characteristics |
title_full |
Nitrogen application in the maize, under no tillage system: effects in the soil physical quality and agronomics characteristics |
title_fullStr |
Nitrogen application in the maize, under no tillage system: effects in the soil physical quality and agronomics characteristics |
title_full_unstemmed |
Nitrogen application in the maize, under no tillage system: effects in the soil physical quality and agronomics characteristics |
title_sort |
Nitrogen application in the maize, under no tillage system: effects in the soil physical quality and agronomics characteristics |
author |
Silva, Flávia Carvalho |
author_facet |
Silva, Flávia Carvalho Silva, Monica Martins da Libardi, Paulo Leonel |
author_role |
author |
author2 |
Silva, Monica Martins da Libardi, Paulo Leonel |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Silva, Flávia Carvalho Silva, Monica Martins da Libardi, Paulo Leonel |
dc.subject.por.fl_str_mv |
Soil management Crop succession Fertilization Soil physical properties. Solos e Nutrição de Plantas Manejo do solo Sucessão de culturas Adubação Propriedades físicas. Solos e Nutrição de Plantas |
topic |
Soil management Crop succession Fertilization Soil physical properties. Solos e Nutrição de Plantas Manejo do solo Sucessão de culturas Adubação Propriedades físicas. Solos e Nutrição de Plantas |
description |
This research was developed in the experimental area of ESALQ-USP, city of Piracicaba , state of Sao Paulo, in a soil of sandy-clay texture and aimed to evaluate the soil physical quality and maize agronomic characteristics with maize crop under different N doses and different tillage systems. The experimental design consisted of randomized blocks with four replicates. Treatments consisted of three nitrogen doses (N) (60, 120, and 180 kg ha-1) and a control. The ammonium sulfate fertilizer was applied at 30 kg ha-1 N during seeding, and the rest was applied as sidedressing when the plants had between six and eight leaves. Were determined the bulk density, microporosity, macroporosity and total porosity of soil, at depths of 0.05, 0.15, 0.25, 0.35 m, and the maize components yield. The soil physical properties tend to change over time and N levels, especially with regard to soil macroporosity and microporosity, conditioned by the structural change of the soil. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013-12-06 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Pesquisa de campo Pesquisa de campo |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/12904 10.5433/1679-0359.2013v34n6Supl1p3513 |
url |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/12904 |
identifier_str_mv |
10.5433/1679-0359.2013v34n6Supl1p3513 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/12904/pdf_86 |
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 |
UEL |
publisher.none.fl_str_mv |
UEL |
dc.source.none.fl_str_mv |
Semina: Ciências Agrárias; Vol. 34 No. 6Supl1 (2013); 3513-3528 Semina: Ciências Agrárias; v. 34 n. 6Supl1 (2013); 3513-3528 1679-0359 1676-546X reponame:Semina. Ciências Agrárias (Online) instname:Universidade Estadual de Londrina (UEL) instacron:UEL |
instname_str |
Universidade Estadual de Londrina (UEL) |
instacron_str |
UEL |
institution |
UEL |
reponame_str |
Semina. Ciências Agrárias (Online) |
collection |
Semina. Ciências Agrárias (Online) |
repository.name.fl_str_mv |
Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL) |
repository.mail.fl_str_mv |
semina.agrarias@uel.br |
_version_ |
1799306067871531008 |