182 POWER AND THE PLOW 



The disk is essentially a pulverizer, hence is not recommended 

 for sod breaking except in short buffalo g 



For breaking, a crusher is usually drawn behind disk plows to 

 compact the sod and hasten its decomposition. The natural 

 field for the disk-engine gang is in the South, the Southwest, 

 and the semi-arid plains. Successful farm management in 

 those sections often involves plowing at a season of the year 

 when the ground is too hard and dry for moldboard plows, and 

 the temperature too great for the use of animal power. As 

 before stated, however, where either type may be used, the 

 moldboard is preferable for any power, and for mechanical 

 power the efficiency of the latest flexible moldboard types is 

 so far superior as to make their selection practically universal. 



