Data/hora: 03/06/2024 10:03:17

Provedor de dados: 	90	
País: 	Brazil	
Título: 	Physical properties of an Alfisol and no-till soybean yield	
Autores: 	Tavares Filho,João; Guimarães,Maria de Fátima; Curmi,Pierre; Tessier,Daniel.	
Data: 	2012-02-01	
Ano: 	2012	
Palavras-chave: 	No tillage; Soil physical properties; Organic matter; Crop rotation.	
Resumo: 	It is known that any kind of soil management causes changes in the soil physical characteristics and can affect agricultural yield. The purpose of this study was to evaluate soil properties of an Alfisol and soybean yield under different management systems for no-tillage annual crops, no-tillage with chiseling and no-tillage crop rotation. The 11-year experiment was initiated in the 1998/99 growing season, on 100 x 30 m plots (11 % slope). Soil samples (5 per management system) were systematically collected (0-25 cm layer) in the summer growing season, to quantify soil organic matter, bulk density, macroporosity and flocculation, as well as soybean yield. The highest values for soil bulk density and organic matter content and the lowest for macroporosity were observed in the no-till system alone, whereas in the no-till system with quarterly chiseling the values for organic matter content were lowest, and no-tillage crop rotation resulted in the highest values for organic matter and macroporosity, and the lowest for soil bulk density. The average soybean yield was highest under no-till and trimestrial chiseling or crop rotation, and lowest for no-tillage annual crops no-tillage annual crops alone.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832012000100026	
Editor: 	Sociedade Brasileira de Ciência do Solo	
Relação: 	10.1590/S0100-06832012000100026	
Formato: 	text/html	
Fonte: 	Revista Brasileira de Ciência do Solo  v.36 n.1 2012	
Fonte: 	info:eu-repo/semantics/openAccess