THIRTY-SEVENTH ANNUAL CONVENTION. 309 



ion of the farm. There would of course be some change in the 

 position of the crops each year. . The crops raised and the rota- 

 tion practiced under each system are as follows : 



System No. i. — Corn, oats, corn, oats, timothy, pasture, 

 pasture, pasture. 



System No. 2. — Corn, corn, corn, oats, clover, clover, clo- 

 ver and timothy, pasture, pasture. 



System No. 3. — Corn, corn, corn, oats, clover, alfalfa, pas- 

 ture, pasture. 



System No. 4. — Corn, corn, corn, corn, corn, alfalfa, alfal- 

 fa, alfalfa. The comparisons to be made here in detail show 

 what one going into the dairy business may reasonably expect to 

 accomplish from each of these systems, and they should be of 

 even greater value to established dairymen by pointing out the 

 great advantage of raising the proper crops and adopting a 

 good system of rotation, especially one containing a large acre- 

 age of legumes, preferably alfalfa, and also a large acreage of 

 corn for the silo. 



Figuring the Same Yields in Four Systems. 



The entire farm in each case has been figured as tillable, 

 and all the land of good quality and well-drained. However, 

 the larger the proportion of untillable land in a farm, the more 

 important it is that the tillable area be devoted to intensive sys- 

 tems of cropping. In order to have the systems of farming on 

 the same basis, the crop yields are the same for all systems. No 

 attempt is herein made to exhibit phenomenal or impossible re- 

 sults, as the yields have been fixed as nearly as possible at the 

 average production per acre on the better class of farms in Illin- 

 ois, as follows : 



