the benefits to be derived from making a thorougli investigation 



of all conditions heretofore mentioned and govern himself accordingly. 



Deep Plowing Without Bringing Subsoil to the Surface 



The danger of bringing subsoil to the surface can be prevented and 

 many of the benefits of deep plowing gained, by using a plow which 

 thoroughly pulverizes the bottom half of the furrow slice, but does not 



place the subsoil on top 

 of the surface soil which 

 contains humus. This 

 plow has a broad share 

 and the moldboard is 

 very narrow at the point 

 where it joins the share, 

 but widens gradually at 

 the upper end. The 

 share loosens and pul- 

 verizes the bottom slice 

 which immediately falls 

 to the bottom of the 

 furrow through the 

 space between the outer 

 edge of the moldboard 

 and the wing of the 

 share, and the broad 

 part of the moldboard 

 turns the top soil in 

 the ordinary way. 

 WTiile this plow penetrates to a depth of fourteen to sixteen inches, 

 the furrow is left half-full of pulverized soil. A seed-bed so made is 

 necessarily thoroughly ventilated, an abundance of room is provided for 

 plant roots, and owing to the loose condition of the soil, water is rapidly 

 absorbed. 



This plow is certainly an ideal implement to use; in fact, it is the only 

 one which has ever been devised that eliminates dangers previously 

 mentioned and at the same time provides a deep seed-bed. 



The Jointer 



When trash exists on the surface in such quantities that it is not thor- 

 oughly covered, the jointer should be used. This attachment can be 

 gauged to any required depth necessary to turn surface trash. As it is 

 turned, it strikes the previous furrow a few inches below the top and is 

 caught and covered by the moldboard slice, leaving the surface free of 

 the accumulation and at the same time not placing it below the reach of 

 the disc or other tillage implements. 



John Deere Deep-Tilling Stag Turning a Furrow 

 16 Inches Deep 



