Data/hora: 20/05/2024 01:01:23

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