Data/hora: 24/06/2024 11:03:08

Biblioteca(s): | Embrapa Meio-Norte.
Data corrente: | 26/05/2022
Data da última atualização: | 16/06/2023
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.
Palavras-Chave: | Água no solo; Resistência do solo; Sistemas integrados.
Categoria do assunto: | X Pesquisa, Tecnologia e Engenharia
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1143464/1/PhysicalHydraulicPropertiesUltisolUnderNoTillageRC35.2022.pdf
Registro original: | Embrapa Meio-Norte (CPAMN)
Exemplares: | CPAMN - (33368-1) - UPA - AP - DD -  -  -  - DIS