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Registro Completo |
Biblioteca(s): |
Embrapa Meio-Norte. |
Data corrente: |
26/05/2022 |
Data da última atualização: |
16/06/2023 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
BARBOSA, L. R.; SOUZA, H. A. de; OLIVEIRA, F. P. de; NUNES, L. A. P. L.; LEITE, L. F. C. |
Afiliação: |
LEOVÂNIO RODRIGUES BARBOSA, UFPB; HENRIQUE ANTUNES DE SOUZA, CPAMN; FLÁVIO PEREIRA DE OLIVEIRA, UFPB; LUIS ALFREDO PINHEIRO LEAL NUNES, UFPI; LUIZ FERNANDO CARVALHO LEITE, CPAMN. |
Título: |
Physical-hydraulic properties of an ultisol under no-tillage and Crop-Livestock Integration in the Cerrado. |
Ano de publicação: |
2022 |
Fonte/Imprenta: |
Revista Caatinga, Mossoró, v. 35, n. 2, p. 460-469, abr./jun. 2022. |
Idioma: |
Inglês |
Conteúdo: |
Light soils are more susceptible to degradation and need to be exploited in a conservational manner, thus avoiding rapid degradation. The objective of this study was to evaluate the physical-hydraulic properties of an Ultisol under no-tillage and crop-livestock integration in the Cerrado of eastern Maranhão state, Brazil. The evaluated managements were one area under no-tillage system for fourteen years (soybean/millet) and three areas with different histories of adoption of the crop-livestock integration (CLI) system under no-tillage (soybean/millet), with the difference being: times of entry with CLI (2, 4 and 8 years), as well as a native Cerrado area, considered a control. Soil collection was carried out in June 2018 at depths of 0.00-0.10, 0.10-0.20, 0.20-0.30 and 0.30-0.50 m. Disturbed and undisturbed samples were collected to determine the following variables: bulk density, porosity, resistance to penetration, retention curve and available water capacity. Data were subjected to the calculation of means and confidence intervals (95%). The area with a recent history of crop-livestock integration showed better density, porosity, resistance to penetration, water storage capacity and available water. No-tillage for fourteen years leads to high resistance to penetration, less porosity and low water storage capacity. The integrated system (CLI) improves the quality of the physical-hydraulic properties and the values found are similar to those observed in an area under native vegetation. MenosLight soils are more susceptible to degradation and need to be exploited in a conservational manner, thus avoiding rapid degradation. The objective of this study was to evaluate the physical-hydraulic properties of an Ultisol under no-tillage and crop-livestock integration in the Cerrado of eastern Maranhão state, Brazil. The evaluated managements were one area under no-tillage system for fourteen years (soybean/millet) and three areas with different histories of adoption of the crop-livestock integration (CLI) system under no-tillage (soybean/millet), with the difference being: times of entry with CLI (2, 4 and 8 years), as well as a native Cerrado area, considered a control. Soil collection was carried out in June 2018 at depths of 0.00-0.10, 0.10-0.20, 0.20-0.30 and 0.30-0.50 m. Disturbed and undisturbed samples were collected to determine the following variables: bulk density, porosity, resistance to penetration, retention curve and available water capacity. Data were subjected to the calculation of means and confidence intervals (95%). The area with a recent history of crop-livestock integration showed better density, porosity, resistance to penetration, water storage capacity and available water. No-tillage for fourteen years leads to high resistance to penetration, less porosity and low water storage capacity. The integrated system (CLI) improves the quality of the physical-hydraulic properties and the values found are similar to those observed in an area under native... Mostrar Tudo |
Palavras-Chave: |
Água no solo; Resistência do solo; Sistemas integrados. |
Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1143464/1/PhysicalHydraulicPropertiesUltisolUnderNoTillageRC35.2022.pdf
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Marc: |
LEADER 02172naa a2200205 a 4500 001 2143464 005 2023-06-16 008 2022 bl uuuu u00u1 u #d 100 1 $aBARBOSA, L. R. 245 $aPhysical-hydraulic properties of an ultisol under no-tillage and Crop-Livestock Integration in the Cerrado.$h[electronic resource] 260 $c2022 520 $aLight soils are more susceptible to degradation and need to be exploited in a conservational manner, thus avoiding rapid degradation. The objective of this study was to evaluate the physical-hydraulic properties of an Ultisol under no-tillage and crop-livestock integration in the Cerrado of eastern Maranhão state, Brazil. The evaluated managements were one area under no-tillage system for fourteen years (soybean/millet) and three areas with different histories of adoption of the crop-livestock integration (CLI) system under no-tillage (soybean/millet), with the difference being: times of entry with CLI (2, 4 and 8 years), as well as a native Cerrado area, considered a control. Soil collection was carried out in June 2018 at depths of 0.00-0.10, 0.10-0.20, 0.20-0.30 and 0.30-0.50 m. Disturbed and undisturbed samples were collected to determine the following variables: bulk density, porosity, resistance to penetration, retention curve and available water capacity. Data were subjected to the calculation of means and confidence intervals (95%). The area with a recent history of crop-livestock integration showed better density, porosity, resistance to penetration, water storage capacity and available water. No-tillage for fourteen years leads to high resistance to penetration, less porosity and low water storage capacity. The integrated system (CLI) improves the quality of the physical-hydraulic properties and the values found are similar to those observed in an area under native vegetation. 653 $aÁgua no solo 653 $aResistência do solo 653 $aSistemas integrados 700 1 $aSOUZA, H. A. de 700 1 $aOLIVEIRA, F. P. de 700 1 $aNUNES, L. A. P. L. 700 1 $aLEITE, L. F. C. 773 $tRevista Caatinga, Mossoró$gv. 35, n. 2, p. 460-469, abr./jun. 2022.
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Embrapa Meio-Norte (CPAMN) |
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Registro Completo
Biblioteca(s): |
Embrapa Florestas. |
Data corrente: |
17/01/2013 |
Data da última atualização: |
17/01/2013 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
C - 0 |
Autoria: |
DRUMOND, M. A.; BROWN, G. G.; MARINI-FILHO, O. J. |
Afiliação: |
Maria Auxiliadora Drumond, UFMG; GEORGE GARDNER BROWN, CNPF; Onildo J. Marini-Filho, CECAT, ICMBIO. |
Título: |
Avaliação do risco de extinção do minhocuçu: Rhinodrilus alatus Righi, 1971. |
Ano de publicação: |
2012 |
Fonte/Imprenta: |
Biodiversidade Brasileira, v. 2, n. 2, p. 134-139, 2012. |
ISSN: |
2236-2886 |
Idioma: |
Português |
Notas: |
Seção: Avaliação do Estado de Conservação das Espécies da Fauna Brasileira. |
Palavras-Chave: |
Extinção; Minhocoçu; Rhinodrilus alatus. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/74479/1/2012-GeorgeB-BB-RhinodrilusAlatus.pdf
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Marc: |
LEADER 00647naa a2200193 a 4500 001 1945555 005 2013-01-17 008 2012 bl uuuu u00u1 u #d 022 $a2236-2886 100 1 $aDRUMOND, M. A. 245 $aAvaliação do risco de extinção do minhocuçu$bRhinodrilus alatus Righi, 1971.$h[electronic resource] 260 $c2012 500 $aSeção: Avaliação do Estado de Conservação das Espécies da Fauna Brasileira. 653 $aExtinção 653 $aMinhocoçu 653 $aRhinodrilus alatus 700 1 $aBROWN, G. G. 700 1 $aMARINI-FILHO, O. J. 773 $tBiodiversidade Brasileira$gv. 2, n. 2, p. 134-139, 2012.
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