Atributos físicos, químicos e biológicos de solo de cerrado sob diferentes sistemas de uso e manejo
Autor(a) principal: | |
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Data de Publicação: | 2009 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Repositório Institucional da UFLA |
Texto Completo: | http://repositorio.ufla.br/jspui/handle/1/10641 |
Resumo: | As knowledge on no-till system expands, it has become quite clear that separate chemical indicators cannot provide a detailed soil characterization. The objective of this study was to evaluate the effects of tillage systems and soil use in the physical, chemical and biological properties of a clayey dystrophic Red Latosol – Oxisol and a sandy Neosol – Entisol. The treatments for the Oxisol consisted of: native savanna, pasture, conventional tillage, no-tillage with turnip and with forage sorghum as cover crop. For the Entisol: native savanna, native pasture, integrated crop-livestock, cultivated pasture, no-tillage with soybean and corn in the summer. Soil samples were collected from a depth of 0–10 cm, in a clayey dystrophic Red Latosol – Oxisol and a sandy Neosol – Entisol in a savanna ecosystem, near the Parque Nacional das Emas. Treatments were arranged in a completely randomized design, in 5 plots of 150m2, where 10 sub-samples were collected randomly. Chemical, physical and biological analyses were carried out at a soil laboratory. In the Entisol, tillage influenced the soil density, total pore volume, macroporosity and penetration resistance. In the Oxisol, tillage induced variations in soil bulk density, macroporosity and penetration resistance. Small variations in chemical properties were observed in both soils, with higher potential acidity and lower exchangeable cation and phosphorus concentrations. The soil biological properties were influenced by tillage, and were most affected in systems with more anthropic action. In the canonical data analysis the greater weighting coefficient of the physical properties in the canonic variables demonstrated that these were the least important. The contribution of the separate soil properties to evaluate soil quality was minor, but the most sustainable management systems could be defined by multivariate analysis. |
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Atributos físicos, químicos e biológicos de solo de cerrado sob diferentes sistemas de uso e manejoPhysical, chemical and biological properties of cerrado soil under different land use and tillage systemsIndicadores de qualidade do soloAs knowledge on no-till system expands, it has become quite clear that separate chemical indicators cannot provide a detailed soil characterization. The objective of this study was to evaluate the effects of tillage systems and soil use in the physical, chemical and biological properties of a clayey dystrophic Red Latosol – Oxisol and a sandy Neosol – Entisol. The treatments for the Oxisol consisted of: native savanna, pasture, conventional tillage, no-tillage with turnip and with forage sorghum as cover crop. For the Entisol: native savanna, native pasture, integrated crop-livestock, cultivated pasture, no-tillage with soybean and corn in the summer. Soil samples were collected from a depth of 0–10 cm, in a clayey dystrophic Red Latosol – Oxisol and a sandy Neosol – Entisol in a savanna ecosystem, near the Parque Nacional das Emas. Treatments were arranged in a completely randomized design, in 5 plots of 150m2, where 10 sub-samples were collected randomly. Chemical, physical and biological analyses were carried out at a soil laboratory. In the Entisol, tillage influenced the soil density, total pore volume, macroporosity and penetration resistance. In the Oxisol, tillage induced variations in soil bulk density, macroporosity and penetration resistance. Small variations in chemical properties were observed in both soils, with higher potential acidity and lower exchangeable cation and phosphorus concentrations. The soil biological properties were influenced by tillage, and were most affected in systems with more anthropic action. In the canonical data analysis the greater weighting coefficient of the physical properties in the canonic variables demonstrated that these were the least important. The contribution of the separate soil properties to evaluate soil quality was minor, but the most sustainable management systems could be defined by multivariate analysis.À medida que o conhecimento do sistema plantio direto se amplia, verifica-se que o uso de indicadores químicos isolados não permite melhor caracterização dos solos, sendo necessário utilizar um conjunto de indicadores da qualidade do solo com a entrada de outros atributos, entre eles os físicos e os biológicos. Objetivou- se avaliar os efeitos de sistemas de manejo e uso do solo nos atributos físicos, químicos e biológicos de um Latossolo Vermelho distrófico e um Neossolo Quartzarênico órtico sob Cerrado, no entorno do Parque Nacional das Emas. Os aspectos avaliados no Latossolo foram: Cerrado nativo, pastagem, milheto em preparo convencional, nabo forrageiro em plantio direto e sorgo em plantio direto. No Neossolo: Cerrado nativo, pastagem nativa, integração agricultura-pecuária, pastagem cultivada, plantio direto com soja no verão e plantio direto com milho no verão. As amostras de solo foram coletadas na profundidade de 0 a 10 cm. O delineamento experimental foi o inteiramente casualizado, com cinco parcelas de 150 m², sendo coletadas 10 subamostras aleatórias. As análises químicas, físicas e biológicas foram realizadas no Laboratório de Solos da UFG/CJ. Os manejos promoveram alterações na densidade do solo, volume total de poros, macroporos e resistência do solo à penetração no Neossolo e no Latossolo, excetuando-se neste o volume total de poros. Houve pequena variação nos atributos químicos nos dois solos, com o Cerrado apresentando maior acidez potencial e menor teor de cátions trocáveis e P. Os atributos biológicos do solo foram alterados pelos sistemas de manejo, sendo mais prejudicados em sistemas com maior revolvimento do solo.A análise canônica dos dados demonstrou que os atributos físicos foram os de menor importância por apresentar maior coeficiente de ponderação nas variáveis canônicas. Os atributos do solo, isoladamente, pouco contribuíram para a avaliação da qualidade do solo: no entanto, quando se usou a análise multivariada, subsidiaram a constatação dos manejos do solo mais sustentáveis.Sociedade Brasileira de Ciência do Solo2015-12-03T16:55:11Z2015-12-03T16:55:11Z2009-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfCARNEIRO, M. A. C. et al. Atributos físicos, químicos e biológicos de solo de cerrado sob diferentes sistemas de uso e manejo. Revista Brasileira de Ciência do Solo, Viçosa, MG, v.33, n.1, p. 147-157, fev. 2009.http://repositorio.ufla.br/jspui/handle/1/10641Revista Brasileira de Ciência do Soloreponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLACarneiro, Marco Aurélio CarboneSouza, Edicarlos DamacenaReis, Edésio FialhoPereira, Hamilton SeronAzevedo, Watson Rogérioinfo:eu-repo/semantics/openAccesspor2015-12-03T16:55:44Zoai:localhost:1/10641Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2015-12-03T16:55:44Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false |
dc.title.none.fl_str_mv |
Atributos físicos, químicos e biológicos de solo de cerrado sob diferentes sistemas de uso e manejo Physical, chemical and biological properties of cerrado soil under different land use and tillage systems |
title |
Atributos físicos, químicos e biológicos de solo de cerrado sob diferentes sistemas de uso e manejo |
spellingShingle |
Atributos físicos, químicos e biológicos de solo de cerrado sob diferentes sistemas de uso e manejo Carneiro, Marco Aurélio Carbone Indicadores de qualidade do solo |
title_short |
Atributos físicos, químicos e biológicos de solo de cerrado sob diferentes sistemas de uso e manejo |
title_full |
Atributos físicos, químicos e biológicos de solo de cerrado sob diferentes sistemas de uso e manejo |
title_fullStr |
Atributos físicos, químicos e biológicos de solo de cerrado sob diferentes sistemas de uso e manejo |
title_full_unstemmed |
Atributos físicos, químicos e biológicos de solo de cerrado sob diferentes sistemas de uso e manejo |
title_sort |
Atributos físicos, químicos e biológicos de solo de cerrado sob diferentes sistemas de uso e manejo |
author |
Carneiro, Marco Aurélio Carbone |
author_facet |
Carneiro, Marco Aurélio Carbone Souza, Edicarlos Damacena Reis, Edésio Fialho Pereira, Hamilton Seron Azevedo, Watson Rogério |
author_role |
author |
author2 |
Souza, Edicarlos Damacena Reis, Edésio Fialho Pereira, Hamilton Seron Azevedo, Watson Rogério |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Carneiro, Marco Aurélio Carbone Souza, Edicarlos Damacena Reis, Edésio Fialho Pereira, Hamilton Seron Azevedo, Watson Rogério |
dc.subject.por.fl_str_mv |
Indicadores de qualidade do solo |
topic |
Indicadores de qualidade do solo |
description |
As knowledge on no-till system expands, it has become quite clear that separate chemical indicators cannot provide a detailed soil characterization. The objective of this study was to evaluate the effects of tillage systems and soil use in the physical, chemical and biological properties of a clayey dystrophic Red Latosol – Oxisol and a sandy Neosol – Entisol. The treatments for the Oxisol consisted of: native savanna, pasture, conventional tillage, no-tillage with turnip and with forage sorghum as cover crop. For the Entisol: native savanna, native pasture, integrated crop-livestock, cultivated pasture, no-tillage with soybean and corn in the summer. Soil samples were collected from a depth of 0–10 cm, in a clayey dystrophic Red Latosol – Oxisol and a sandy Neosol – Entisol in a savanna ecosystem, near the Parque Nacional das Emas. Treatments were arranged in a completely randomized design, in 5 plots of 150m2, where 10 sub-samples were collected randomly. Chemical, physical and biological analyses were carried out at a soil laboratory. In the Entisol, tillage influenced the soil density, total pore volume, macroporosity and penetration resistance. In the Oxisol, tillage induced variations in soil bulk density, macroporosity and penetration resistance. Small variations in chemical properties were observed in both soils, with higher potential acidity and lower exchangeable cation and phosphorus concentrations. The soil biological properties were influenced by tillage, and were most affected in systems with more anthropic action. In the canonical data analysis the greater weighting coefficient of the physical properties in the canonic variables demonstrated that these were the least important. The contribution of the separate soil properties to evaluate soil quality was minor, but the most sustainable management systems could be defined by multivariate analysis. |
publishDate |
2009 |
dc.date.none.fl_str_mv |
2009-01-01 2015-12-03T16:55:11Z 2015-12-03T16:55:11Z |
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 |
CARNEIRO, M. A. C. et al. Atributos físicos, químicos e biológicos de solo de cerrado sob diferentes sistemas de uso e manejo. Revista Brasileira de Ciência do Solo, Viçosa, MG, v.33, n.1, p. 147-157, fev. 2009. http://repositorio.ufla.br/jspui/handle/1/10641 |
identifier_str_mv |
CARNEIRO, M. A. C. et al. Atributos físicos, químicos e biológicos de solo de cerrado sob diferentes sistemas de uso e manejo. Revista Brasileira de Ciência do Solo, Viçosa, MG, v.33, n.1, p. 147-157, fev. 2009. |
url |
http://repositorio.ufla.br/jspui/handle/1/10641 |
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por |
language |
por |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
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openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Sociedade Brasileira de Ciência do Solo |
publisher.none.fl_str_mv |
Sociedade Brasileira de Ciência do Solo |
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Revista Brasileira de Ciência do Solo reponame:Repositório Institucional da UFLA instname:Universidade Federal de Lavras (UFLA) instacron:UFLA |
instname_str |
Universidade Federal de Lavras (UFLA) |
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UFLA |
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UFLA |
reponame_str |
Repositório Institucional da UFLA |
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Repositório Institucional da UFLA |
repository.name.fl_str_mv |
Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA) |
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nivaldo@ufla.br || repositorio.biblioteca@ufla.br |
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1807835132630925312 |