Sod can be plowed deep with perfect safety if the jointer is used. It 

 should be run to a depth of two or three inches, depending upon the 

 nature of the sod. The sod-ribbon is so placed when it is turned that it 

 is slightly covered by the dirt from the moldboard and can be easily 

 pulverized by using a disc. Without the jointer attachment, the sod 

 strip might be covered too deep or project above the surface, depending 

 entirely upon the texture of the soil. 



The advantage in plowing sod deep, if this plow with the jointer 

 attachment is used, is plain. Water is secured and stored more readily 

 and roots can penetrate very deep, a condition which cannot be attained 

 where the ordinary plow is used. It must be remembered, however, 

 that to plow sod deep with the ordinary plow turning the sod, as is 

 necessarily the case, to the bottom of the furrow and bringing to the 

 surface raw, unventilated soil devoid of humus, is disastrous. 



Subsoil 



Unfortunately, conditions exist where deep plowing cannot be accom- 

 plished until the physical condition of the soil has been changed. Some 

 soils below the depth of the ordinary plow are so dense and sticky, that 

 penetration is difficult and scouring impossible. In other soils a hard- 

 pan may exist which is not only difficult to penetrate but if turned or 

 materially loosened, large air spaces are formed which hinder the 

 upward movement of capillary water. Either condition can be over- 

 come by using the right type of subsoil plow. 



The benefits of subsoiling are often misunderstood, and, in many 

 instances, the farmer has been misled to the extent of making his land 

 unproductive for a number of years. 



New Deere Gang Equipped with Subsoil Attachment 

 36 



