Soil Microbial Activity in Conventional and Organic Agricultural Systems

Sustainability

Ademir S.F. Araújo²  Luiz F.C. Leite¹  Valdinar B. Santos³ 

[1] Embrapa Meio Norte, Av. Duque de Caxias, SN, Teresina, PI, 64000-000, Brazil; E-Mail:;Laboratório de Qualidade do Solo, Universidade Federal do Piauí, Centro de Ciências Agrárias, Teresina, PI, 64000-000, Brazil; E-Mail:;Universidade Estadual do Piauí, Av. Nossa Senhora de Fátima, Parnaíba, PI, 64202-220, Brazil; E-Mail:

关键词: microbial activity;    microbial biomass;    soil organic matter;    bulk density;   

DOI  :  10.3390/su1020268

来源: mdpi

【 摘 要 】

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.

【 授权许可】

CC BY   
© 2009 by the authors; licensee Molecular Diversity Preservation International. Basel. Switzerland.