Compactação do solo e intervalo hídrico ótimo no crescimento da parte aérea e produtividade da cultura do milho
Autor(a) principal: | |
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Data de Publicação: | 2008 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://200.145.140.50/ojs1/viewarticle.php?id=327&layout=abstract http://hdl.handle.net/11449/70354 |
Resumo: | The aim of this work was to evaluate the effect of soil compaction caused by tractor wheel traffic on the limiting water range (LLWR), shoot growth and levels of compaction and four replications in a completely randomized experimental design. Soil samples with preserved structure were collected in the layers: 0.02-0.05; 0.08-0.11; 0.15-0.18 and 0.22-0.25m to determine macroporosity, microporosity, total porosity, bulk density, resistance to penetration and LLWR. The evaluated corn parameters were: plant and first spike height, steam diameter, number of spikes per plant, plant dry matter, dry matter of 1000 seeds and seed productivity. The soil compaction restricted all corn parameters except the number of spikes per plant and dry matter of 1000 seeds. The LLWR was reduced by the soil resistance to penetration, even in the tilled soil with bulk density of 1.12 Mg m-3. Only the treatment with 11 Mg tractor, repeated four times on the area, demonstrated bulk density above critical bulk density in the LLWR that was 1.37 Mg m-3, where the seed productivity was significantly smaller. |
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Repositório Institucional da UNESP |
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Compactação do solo e intervalo hídrico ótimo no crescimento da parte aérea e produtividade da cultura do milhoSoil compaction and least limiting water range on corn shoot growth and seed productivityBulk densitySoil resistance to penetrationZea maysAgricultureCompactionDensity (specific gravity)Plants (botany)PorositySeedSoilsbulk densitycompactionpenetrationsoil structureThe aim of this work was to evaluate the effect of soil compaction caused by tractor wheel traffic on the limiting water range (LLWR), shoot growth and levels of compaction and four replications in a completely randomized experimental design. Soil samples with preserved structure were collected in the layers: 0.02-0.05; 0.08-0.11; 0.15-0.18 and 0.22-0.25m to determine macroporosity, microporosity, total porosity, bulk density, resistance to penetration and LLWR. The evaluated corn parameters were: plant and first spike height, steam diameter, number of spikes per plant, plant dry matter, dry matter of 1000 seeds and seed productivity. The soil compaction restricted all corn parameters except the number of spikes per plant and dry matter of 1000 seeds. The LLWR was reduced by the soil resistance to penetration, even in the tilled soil with bulk density of 1.12 Mg m-3. Only the treatment with 11 Mg tractor, repeated four times on the area, demonstrated bulk density above critical bulk density in the LLWR that was 1.37 Mg m-3, where the seed productivity was significantly smaller.Departamento de Solos e Adubos Universidade Estadual Paulista Faculdade de Ciências Agrárias e Veterináiras, Jaboticabal, SPDepartamento de Solos e Adubos Universidade Estadual Paulista Faculdade de Ciências Agrárias e Veterináiras, Jaboticabal, SPUniversidade Estadual Paulista (Unesp)Freddi, Onã da Silva [UNESP]Centurion, José Frederico [UNESP]Aratani, Ricardo Garcia [UNESP]Beutler, Amauri Nelson [UNESP]2014-05-27T11:22:50Z2014-05-27T11:22:50Z2008-04-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article272-287application/pdfhttp://200.145.140.50/ojs1/viewarticle.php?id=327&layout=abstractIrriga, v. 13, n. 2, p. 272-287, 2008.1413-78951808-3765http://hdl.handle.net/11449/703542-s2.0-488490943362-s2.0-48849094336.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPporIrriga0,283info:eu-repo/semantics/openAccess2023-12-18T06:19:36Zoai:repositorio.unesp.br:11449/70354Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-12-18T06:19:36Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Compactação do solo e intervalo hídrico ótimo no crescimento da parte aérea e produtividade da cultura do milho Soil compaction and least limiting water range on corn shoot growth and seed productivity |
title |
Compactação do solo e intervalo hídrico ótimo no crescimento da parte aérea e produtividade da cultura do milho |
spellingShingle |
Compactação do solo e intervalo hídrico ótimo no crescimento da parte aérea e produtividade da cultura do milho Freddi, Onã da Silva [UNESP] Bulk density Soil resistance to penetration Zea mays Agriculture Compaction Density (specific gravity) Plants (botany) Porosity Seed Soils bulk density compaction penetration soil structure |
title_short |
Compactação do solo e intervalo hídrico ótimo no crescimento da parte aérea e produtividade da cultura do milho |
title_full |
Compactação do solo e intervalo hídrico ótimo no crescimento da parte aérea e produtividade da cultura do milho |
title_fullStr |
Compactação do solo e intervalo hídrico ótimo no crescimento da parte aérea e produtividade da cultura do milho |
title_full_unstemmed |
Compactação do solo e intervalo hídrico ótimo no crescimento da parte aérea e produtividade da cultura do milho |
title_sort |
Compactação do solo e intervalo hídrico ótimo no crescimento da parte aérea e produtividade da cultura do milho |
author |
Freddi, Onã da Silva [UNESP] |
author_facet |
Freddi, Onã da Silva [UNESP] Centurion, José Frederico [UNESP] Aratani, Ricardo Garcia [UNESP] Beutler, Amauri Nelson [UNESP] |
author_role |
author |
author2 |
Centurion, José Frederico [UNESP] Aratani, Ricardo Garcia [UNESP] Beutler, Amauri Nelson [UNESP] |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Freddi, Onã da Silva [UNESP] Centurion, José Frederico [UNESP] Aratani, Ricardo Garcia [UNESP] Beutler, Amauri Nelson [UNESP] |
dc.subject.por.fl_str_mv |
Bulk density Soil resistance to penetration Zea mays Agriculture Compaction Density (specific gravity) Plants (botany) Porosity Seed Soils bulk density compaction penetration soil structure |
topic |
Bulk density Soil resistance to penetration Zea mays Agriculture Compaction Density (specific gravity) Plants (botany) Porosity Seed Soils bulk density compaction penetration soil structure |
description |
The aim of this work was to evaluate the effect of soil compaction caused by tractor wheel traffic on the limiting water range (LLWR), shoot growth and levels of compaction and four replications in a completely randomized experimental design. Soil samples with preserved structure were collected in the layers: 0.02-0.05; 0.08-0.11; 0.15-0.18 and 0.22-0.25m to determine macroporosity, microporosity, total porosity, bulk density, resistance to penetration and LLWR. The evaluated corn parameters were: plant and first spike height, steam diameter, number of spikes per plant, plant dry matter, dry matter of 1000 seeds and seed productivity. The soil compaction restricted all corn parameters except the number of spikes per plant and dry matter of 1000 seeds. The LLWR was reduced by the soil resistance to penetration, even in the tilled soil with bulk density of 1.12 Mg m-3. Only the treatment with 11 Mg tractor, repeated four times on the area, demonstrated bulk density above critical bulk density in the LLWR that was 1.37 Mg m-3, where the seed productivity was significantly smaller. |
publishDate |
2008 |
dc.date.none.fl_str_mv |
2008-04-01 2014-05-27T11:22:50Z 2014-05-27T11:22:50Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://200.145.140.50/ojs1/viewarticle.php?id=327&layout=abstract Irriga, v. 13, n. 2, p. 272-287, 2008. 1413-7895 1808-3765 http://hdl.handle.net/11449/70354 2-s2.0-48849094336 2-s2.0-48849094336.pdf |
url |
http://200.145.140.50/ojs1/viewarticle.php?id=327&layout=abstract http://hdl.handle.net/11449/70354 |
identifier_str_mv |
Irriga, v. 13, n. 2, p. 272-287, 2008. 1413-7895 1808-3765 2-s2.0-48849094336 2-s2.0-48849094336.pdf |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
Irriga 0,283 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
272-287 application/pdf |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
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1797790042152763392 |