84 



THE OLIVER PLOW BOOK 



A field of tall weeds being turned under with a plow having a com- 

 bined rolling coulter and jointer attached. 



The combined rolling coulter and jointer for this work 

 is the most valuable addition to the plow. This device 

 turns all the surface trash and weeds into the lower 

 * right-hand corner of the furrow. Turning them under 

 deep in this manner means that the new shoots which 

 the seed will send forth take additional strength and 

 nourishment from the root system before they can reach 

 the surface. This growth impoverishes the root, thus 

 the growth is retarded and the weeds' vitality weakened. 



If the plowing has been done at the right time in the 

 fall the winter's freezing will come along and kill the 

 tender plants. If the weeds are of a variety that will 

 come up very soon after plowing, the infested field 

 should be plowed early in the fall and when the weeds 

 come to the surface and begin developing leaves, surface 

 cultivating of the ground with the weeder or disk harrow 



