CORRÊA, H. G.; MAZIERO, J. V. G.
Résumé:
The factors that exert influence in the resistance to
traction offered by the plow are considered so that th ey might
be compared w ith the tractive forces exerted by tractors , less
the loss of power due to local conditions and to reduction in
force due to declivity and rolling soil coefficient .
There is a group of variable elements that exert influence in the final valnes obtained , turning calculations very extensive: nevertheless , in view of the use o f modem calculators or
even computers, the calculation has become faster , enabling the
operator to elaborate tables that allow their use for a correct
program for the use of plows.
Once such values are obtained the tractors minimum power
are calculated , considering the periods (hours) for the plowing
of the various areas .