  Darboux transformation is reconsidered for the supersymmetric KdV system. By
iterating the Darboux transformation, a supersymmetric extension of the Crum
transformation is obtained for the Manin-Radul SKdV equation, in doing so one
gets Wronskian superdeterminant representations for the solutions. Particular
examples provide us explicit supersymmetric extensions, super solitons, of the
standard soliton of the KdV equation. The KdV soliton appears as the body of
the super soliton.
