  A shell model study of the low energy region of the spectra in Ge isotopes
for $38\leq N\leq 50$ is presented, analyzing the excitation energies,
quadrupole moments, $B(E2)$ values and occupation numbers. The theoretical
results have been compared with the available experimental data. The shell
model calculations have been performed employing three different effective
interactions and valence spaces.We have used two effective shell model
interactions, JUN45 and jj44b, for the valence space $f_{5/2} \, p \,g_{9/2}$
without truncation. To include the proton subshell $f_{7/2}$ in valence space
we have employed the $fpg$ effective interaction due to Sorlin {\it et al.},
with $^{48}$Ca as a core and a truncation in the number of excited particles.
