  We obtain an infinite sequence of bosonic non-local conserved quantities for
the N=1 supersymmetric Korteweg-de Vries equation. It is generated from a
bosonic non-local conserved quantity of Super Gardner equation. In distinction
to the already known one with odd parity and dimension 1/2, it has even parity
and dimension 1. It fits exactly in the supersymmetric cohomology in the space
of conserved quantities that we also introduce here. Using results from this
cohomology we obtain the Poisson bracket of several non-local conserved
quantities, including the already known odd ones and the new even ones. The
algebra closes in terms of polynomials of local and non-local conserved
quantities. We prove that the bosonic non-local conserved quantities cannot be
expressed as functions of the already known local and non-local conserved
quantities of Super KdV equation.
