I3O FARM MACHINERY 



The concave wheel gathers the soil better than the flat 

 wheel, but leaves the surface smooth. 



The open wheel is now used to a larger extent than 

 any other type. It has good gather, covering the corn 



FIG. 97 CORN-PLANTER WHEELS WITH CONCAVE, FLAT, AND OPEN TIRE; 

 ALSO THE DOUBLE WHEEL 



well ; the ground has no tendency to bake over the corn, 

 and the water during rains is carried to one side of the 

 track. 



The double wheel consists in two wheels instead of one 

 to cover the corn, and may be set with more or less 

 gather, thus being able to cover the corn under all con- 

 ditions. 



175. Fertilizer attachment. In some localities it is 

 necessary to use fertilizer to secure an early and quick 

 growth of corn. An attachment is made to drop fertilizer 

 for each hill, and careful adjustment must be made to 

 drop the fertilizer the right distance from the hill. If too 

 far away, it will not give immediate benefits, and if placed 

 too close, will rot the corn. This adjustment is difficult 

 owing to the difference in speeds at which planters are 

 operated. 



176. Marker. Markers are made in two styles, the 

 sliding and the disk. The disk has proved to be a very 

 satisfactory marker. 



