ROTATION OF CROPS 



127 



2. Four-year Rotation 



IST YEAH 



Corn 



Corn 



Corn 



Corn 



Potatoes 



Cowpeas 



Rye 



Grass 



QUESTIONS 



1. What have farmers learned about growing the same crop year after 

 year? 



2. Discuss the evils of the one-crop system. 



3. What can you say of rules for rotation of crops ? 



4. Discuss the advantages of rotation. 



5. Give examples of (a) a five-year rotation, (6) a four-year rotation. 



6. Give a list of the rotations practiced in your neighborhood. 



REFERENCES 



Soiling Crops and the Silo, Thomas Shaw. 

 Practices in Crop Rotation, Year Book, 1902. 

 The Fertility of the Land, J. P. Roberts. 

 Fertilizers, Voorhees. 



Soils and Crops of the Farm, Morton and Hunt. 

 The Science of Agriculture, Lloyd. 



