Data/hora: 11/06/2024 04:46:49

Provedor de dados: 	90	
País: 	Brazil	
Título: 	Physical quality of a yellow latossol under integrated crop-livestock system	
Autores: 	Araújo,Fernando Silva; Salviano,Adeodato Ari Cavalcante; Leite,Luiz Fernando Carvalho; Souza,Zigomar Menezes de; Sousa,Allan Charlles Mendes de.	
Data: 	2010-06-01	
Ano: 	2010	
Palavras-chave: 	No-tillage system; Soil compaction; Animal trampling; Pasture grazing.	
Resumo: 	Soil physical quality is essential to global sustainability of agroecosystems, once it is related to processes that are essential to agricultural crop development. This study aimed to evaluate physical attributes of a Yellow Latossol under different management systems in the savanna area in the state of Piaui. This study was developed in Uruçuí southwest of the state of Piauí. Three systems of soil management were studied: an area under conventional tillage (CT) with disk plowi and heavy harrow and soybean crop; an area under no-tillage with soybean-maize rotation and millet as cover crop (NT + M); two areas under Integrated Crop-Livestock System, with five-month pasture grazing and soybean cultivation and then continuous pasture grazing (ICL + S and ICL + P, respectively). Also, an area under Native Forest (NF) was studied. The soil depths studied were 0.00-0.05, 0.05-0.10 and 0.10-0.20 m. Soil bulk density, as well as porosity and stability of soil aggregates were analyzed as physical attributes. Anthropic action has changed the soil physical attributes, in depth, in most systems studied, in comparison to NF. In the 0.00 to 0.05 m depth, ICL + P showed higher soil bulk density value. As to macroporosity, there was no difference between the management systems studied and NF. The management systems studied changed the soil structure, having, as a result, a small proportion of soil in great aggregate classes (MWD). Converting native forest into agricultural production systems changes the soil physical quality. The Integrated Crop-Livestock System did not promote the improvement in soil physical quality.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832010000300013	
Editor: 	Sociedade Brasileira de Ciência do Solo	
Relação: 	10.1590/S0100-06832010000300013	
Formato: 	text/html	
Fonte: 	Revista Brasileira de Ciência do Solo  v.34 n.3 2010	
Fonte: 	info:eu-repo/semantics/openAccess