IMPORTANCE IN ROTATION. 



85 



119. Importance of Com in the Rotation. Owing to the 

 stimulating and tlie cleaning effects of cultivation on the soil 

 and the influence the crop has on the number of hve stock 

 kept, by furnishing an abundance of cheap and desirable 

 feed, corn has a very important relation to the cropping 

 system of the farm. Diversification, rotation of crops, 



Figure 36. — Minnesota No. 13, a type of yellow dent corn adapted to the North- 

 ern states, improved by the Minnesota Agricultural Experiment Station. 



and the keeping of live stock usually lead to increased pro- 

 duction and larger farm profits. 



120. Rotations Which Include Corn. One of the very 

 common and desirable rotations for corn is the following: 

 First year, grain; second year, clover; third year, corn. 

 This rotation is giving good results, especially on some of the 

 lighter soils. On heavier soils, there is danger, if the corn 

 and clover are fed on the farm and the manure returned to 

 the land, that the soil will become so rich that the grain 

 crop following the corn will lodge. It is, however, an excel- 

 lent system of rotation for building up run-down soils. 

 When they are so built up that difficulty is experienced in the 



