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.

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Source
Sustainability (2009) 1: 268-276


Author Locations and Affiliations
(1) Laboratório de Qualidade do Solo, Universidade Federal do Piauí, Centro de Ciências Agrárias, Teresina, PI, 64000-000, Brazil
(2) Embrapa Meio Norte, Av. Duque de Caxias, SN, Teresina, PI, 64000-000, Brazil
(3) Universidade Estadual do Piauí, Av. Nossa Senhora de Fátima, Parnaíba, PI, 64202-220, Brazil