| dc.creator |
Valpassos Maria Alexandra Reis |
|
| dc.creator |
Cavalcante Eloiza Gomes Silva |
|
| dc.creator |
Cassiolato Ana Maria Rodrigues |
|
| dc.creator |
Alves Marlene Cristina |
|
| dc.date |
2001 |
|
| dc.date.accessioned |
2013-05-30T04:05:27Z |
|
| dc.date.available |
2013-05-30T04:05:27Z |
|
| dc.date.issued |
2013-05-30 |
|
| dc.identifier |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2001001200011 |
|
| dc.identifier |
http://www.doaj.org/doaj?func=openurl&genre=article&issn=0100204X&date=2001&volume=36&issue=12&spage=1539 |
|
| dc.identifier.uri |
http://koha.mediu.edu.my:8181/jspui/handle/123456789/3714 |
|
| dc.description |
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. |
|
| dc.publisher |
Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
|
| dc.source |
Pesquisa Agropecuária Brasileira |
|
| dc.subject |
soil chemicophysical properties |
|
| dc.subject |
biomass |
|
| dc.subject |
soil deterioration |
|
| dc.subject |
soil conservation |
|
| dc.title |
Effects of soil management systems on soil microbial activity, bulk density and chemical properties |
|