Abstract
The diversity and abundance of Collembola and soil arthropods in organic and conventional lowland field at fallow time. As ecosystem components, Collembola and arthropods are important in keeping the ecosystem stability. Beside its role as the decomposer, Collembola also takes part as the alternative food for arthropod predators. This research was aimed to gather information on the diversity and abundance of Collembola and arthropods in organic and conventional lowland field at fallow time. The sampling was done using pitfall trap and Berlese funnel. The results showed that: (1) the abundance of Collembola in organic lowland field was higher than that of in the conventional lowland field but the diversity of Collembola in the organic lowland field was not different from that of in the conventional field; (2) Entomobryidae was the family with the highest abundance; and (3) the diversity and abundance of soil arthropods were relatively greater in organic lowland field than that of in the conventional lowland.