| Registro completo |
| Provedor de dados: |
PAB
|
| 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
|
| Direitos: |
info:eu-repo/semantics/openAccess
|
