PL
Relacje pomiędzy poziomem dochodu rodziny rolnika a nakładami pracy oraz poziomem zaangażowanych środków mechanizacji i środków obrotowych, analizowane w grupach gospodarstw o zbliżonym poziomie produkcji końcowej netto pozwoliły ocenić efektywność substytucji pracy w tych gospodarstwach.
EN
Physical (quantitative) and economical (by value) relationships between the labour inputs and inputs of mechanization means and current assets were investigated on 73 family farms. The effectiveness of studied relationships was evaluated by farmer’s family income level, in 6 groups of farms, divided according to the level of net final production. Labour substitution, considered as a physical relationship, occurred on all investigated farms, however, the economical efficiency of this process was observed only on the farms where net final production exceeded 50 grain units per ha agricultural land. Those farms in 1992 -1993 obtained annual family income above 60 million zł (6.000 -zł) per working person.