For the assessment of soil erosion many models have been developed. Most of these
don’t consider specific effects of organic agriculture (OA). That might result in wrong
calculations of soil losses. This paper describes how the widespread model ABAG
could be adopted to OA. But some effects can not be included easily. This seems to
be possible when using the model RUSLE2, which is compatible to ABAG. But at least
the carry-over effect of leys and the influence of pesticides need further research