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Effects of soil management systems on soil microbial activity, bulk density and chemical properties

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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


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