  Electroproduction in deep inelastic scattering at HERA is studied in a model
considering a finite sum of gluon ladders, associated with a truncation of the
BFKL series. The approach contains the bare two gluon exchange and both one and
two rungs contributions. The model is fitted to the data on the inclusive
structure function F_2(x,Q^2) in the region x<0.025 and 0.045<Q^2<1500 GeV^2,
with a good agreement. Such a description for a large span in Q^2 is obtained
through a suitable modeling of the remaining non-perturbative background.
