In a one-factor field experiment, carried out in 2011-2012 in Demo Farma in Drzęczewo near Gostyń in Wielkpolskie Voivodeship, the size and structure of energy inputs incurred for cultivation of hybrid rye and index of energy efficiency were compared. The size of energy accumulated was not varied by the compared systems of field cultivation, because it depended mainly on inputs of energy accumulated brought in the form of materials (approx. 85%). The use of no-tillage cultivation reduced energy inputs brought in the form of fuel by 2.4% and in the form of aggregates (by 34.5% in comparison to tillage cultivation). The compared systems of field cultivation diversified the size of hybrid rye seed crop by 4.7%, value of the energy efficiency index by 3.9% and the size of the accumulated energy inputs by 0.9%.