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Soil Microbial Activity in Conventional and Organic Agricultural Systems
Laboratório de Qualidade do Solo, Universidade Federal do Piauí, Centro de Ciências Agrárias, Teresina, PI, 64000-000, Brazil
Embrapa Meio Norte, Av. Duque de Caxias, SN, Teresina, PI, 64000-000, Brazil
Universidade Estadual do Piauí, Av. Nossa Senhora de Fátima, Parnaíba, PI, 64202-220, Brazil
* Author to whom correspondence should be addressed.
Received: 9 April 2009; Accepted: 31 May 2009 / Published: 4 June 2009
Abstract: The aim of this study was to evaluate microbial activity in soils under conventional and organic agricultural system management regimes. Soil samples were collected from plots under conventional management (CNV), organic management (ORG) and native vegetation (AVN). Soil microbial activity and biomass was significantly greater in ORG compared with CNV. Soil bulk density decreased three years after adoption of organic system. Soil organic carbon (SOC) was higher in the ORG than in the CNV. The soil under organic agricultural system presents higher microbial activity and biomass and lower bulk density than the conventional agricultural system.
Keywords: microbial activity; microbial biomass; soil organic matter; bulk density
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MDPI and ACS Style
Araújo, A.S.; Leite, L.F.; Santos, V.B.; Carneiro, R.F. Soil Microbial Activity in Conventional and Organic Agricultural Systems. Sustainability 2009, 1, 268-276.
Araújo AS, Leite LF, Santos VB, Carneiro RF. Soil Microbial Activity in Conventional and Organic Agricultural Systems. Sustainability. 2009; 1(2):268-276.
Araújo, Ademir S.; Leite, Luiz F.; Santos, Valdinar B.; Carneiro, Romero F. 2009. "Soil Microbial Activity in Conventional and Organic Agricultural Systems." Sustainability 1, no. 2: 268-276.