116 



WHEAT 

 TABLE VIII 



Increase in wheat yield due to farm manure 

 by periods of five years (1892-1906), Bui. No. 

 100 N. D. Exp. Station. 



* Three years only. 



The average annual increase in wheat yields 

 was nearly 16% due to the application of only 

 six loads of manure per acre once in four years, 

 and this was on the fertile wheat lands of the Red 

 River Valley. 



THE VALUE OF WHEAT STRAW 



Observe from Table V that a ton of wheat 

 straw contains about the same amount of plant 

 food elements as a ton of farm manure but it is 

 difficult to use the straw directly as a fertilizer 

 because of its bulky, trashy character. In the 

 great wheat producing areas it seems necessary 

 to burn a great deal of straw simply to get it out 

 of the way. When burning is necessary, it is 

 better to spread the straw over the field and burn 

 it rather than to burn it in piles. By spreading, 

 the ashes will be distributed over the land and 

 the nitrogen only will be lost in burning. 



The introduction of a proper rotation of crops 



