ROTATION 



379 



corn of 51 bushels per acre and G4 bushels for corn grown in a 

 rotation of corn, corn, oats, and clover. 



Rotation Compared with Continuous Corn. Ames, Iowa 



Jt will be observed that the yield at the beginning was about the 

 same for each. 



At the Illinois Station corn has been grown for thirty-seven 

 years in comparison with a corn and oats and a corn, oats, and 

 clover rotation. The hist four crops of corresponding years average : 

 Continuous corn 2(5.4 bushels per acre, corn and oats rotation 34.6 

 bushels, and the corn, oats, and clover rotation 57.1 bushels. 



Yields of Corn, When! mid Hay Under Dffircni Systems of Cropping. 

 Minnesota Station ' 



* Record lost. 



t 8 years. 



t 7 years. 



From the results given in the above table it will he seen that con- 

 tinuous cropping has a greater cfl'ect <>M corn than upon wheat. The 

 .'-year rotation increased corn .'.">. ? bushels, while the increase for 

 wheat was only '?. I bushels per acre. 



Ohio has been carrying on some experiments for about 10 years 

 that prove the value of rotations. 



