Título:	Physical-hydraulic properties of an ultisol under no-tillage and Crop-Livestock Integration in the Cerrado.
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.
Ano de publicação:	2022
Referência:	Revista Caatinga, Mossoró, v. 35, n. 2, p. 460-469, abr./jun. 2022.
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
Tipo do material:	Artigo de periódico
Acesso:	openAccess
Aparece nas coleções:	Artigo em periódico indexado (CPAMN)