The Disk Harrow in North Dakota 



By J. H. WORST 



President, North Dakota Agricultural College 



The disk harrow is used almost uni- 

 versally by the farmers of North Dakota. 

 The disk following a corn crop of the 

 previous year or after potatoes gives 

 better results than any other manner of 

 preparing the land if a thorough job of 

 disking is done. Our people commonly 

 practice double disking and I believe 

 should do so in almost all cases. 



It will be seen that on the average it 

 is superior to either spring or fall plow- 

 ing. When the land is inclined to drift, 



disking usually prevents that trouble. 



In Bulletin No. 75 the following table shows the results of 



preparing corn ground for wheat: 



It is used in many cases to run over stubble land after the 

 binder so that the sheaves fall on the disked surface. By this 

 practice, a loose mulch is formed over the surface, which is 

 made up of a mixture of dirt and grain stubble. This has 

 a pronounced advantage in keeping moisture in the soil after 

 the crop is through using it until such time as the grain is 



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