PLOW BOTTOMS 



121 



The furrow slice the same as shown on page 120 cut farther forward. 

 This furrow shows no indication of pulverization but a tendency to lift 

 the slice from the start. 



Another experiment with an entirely different shaped 

 bottom cutting six inches deep and fourteen inches wide 

 revealed the following result. Thirty-three per cent, of 

 the work was done by the share, forty-seven per cent, 

 by the mouldboard, and twenty per cent, by the shin 

 cutting the furrow wall. The type of soil in which the 

 experiment was conducted was a clay loam sod. 



In both instances the draft of the plow was arranged 

 so that there was no pressure of the landside against the 

 furrow wall. 



The amount of work required of the landside is solely 

 determined by the hitch. If the hitch is properly made 

 there is little landside pressure because the land suck on 



