Data/hora: 12/06/2024 09:05:45

Provedor de dados: 	86	
País: 	Brazil	
Título: 	Effects of soil management systems on soil microbial activity, bulk density and chemical properties	
Autores: 	Valpassos,Maria Alexandra Reis; Cavalcante,Eloiza Gomes Silva; Cassiolato,Ana Maria Rodrigues; Alves,Marlene Cristina.	
Data: 	2001-12-01	
Ano: 	2001	
Palavras-chave: 	Soil chemicophysical properties; Biomass; Soil deterioration; Soil conservation.	
Resumo: 	The objective of this experiment was to study the effects of soil management systems on the bulk density, chemical soil properties, and on the soil microbial activity on a Latossolo Vermelho distrófico (Oxisol). Soil samples were collected from plots under the following management conditions: a) natural dense "cerrado" vegetation (savanna); b) degraded Brachiaria decumbens pasture, 20 years old; c) no-tillage treatment with annual crop sequence (bean, corn, soybean and dark-oat in continuous rotation), 8 years old; d) conventional tillage treatment with crop residues added to the soil, and annual crop sequence, 10 years old. The continuous use of no-tillage system resulted in an increase in microbial biomass and decrease in soil basal respiration, therefore displaying evident long-term effects on the increase of soil C content. The no-tillage system also provided an improvement in bulk density and chemical properties of the soil. Hence, the no-tillage management system could be an alternative for the conservation and maintenance of physical and chemical conditions and the productive potential of "cerrado" soils.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2001001200011	
Editor: 	Embrapa Secretaria de Pesquisa e Desenvolvimento

Pesquisa Agropecuária Brasileira	
Relação: 	10.1590/S0100-204X2001001200011	
Formato: 	text/html	
Fonte: 	Pesquisa Agropecuária Brasileira  v.36 n.12 2001	
Fonte: 	info:eu-repo/semantics/openAccess