284 SOILS AND FERTILIZERS 



there are produced 20 acres of corn, 20 acres of timothy 

 and clover hay, 10 acres each of wheat and flax, 20 acres 

 of barley, and 5 acres each of corn fodder, rye, peas, 

 and potatoes, while 20 acres are reserved for pasture. 

 The main income is derived from the sale of live stock 

 and dairy products. 



Problems on Rotation 



1. Plan a rotation for general farming (160 acres), using the 

 following crops : clover, timothy, barley, oats, potatoes, and corn. 

 The soil is in an average state of fertility. Twenty-five head of 

 stock are kept. 



2. Plan a three-course rotation for a sandy soil, the main object 

 being potato culture. 



3. Plan a seven-year rotation for grain farming, using manure 

 and a commercial fertilizer once during the rotation. The soil is 

 a clay loam in a good state of fertility. 



4. Plan a rotation for general farming ori a sandy loam. 



5. How would you proceed to bring an old grain farm from a 

 low to a high state of productiveness ? Begin with the feeding of 

 the stock. 



6. Using commercial and special purpose manures, how would 

 you proceed to raise wheat, potatoes, and hay in a suitable rotation 

 and continuously? 



7. Plan a rotation for a northern latitude, where corn cannot be 

 grown, except for fodder, and where clover and timothy fail to 

 do well ; wheat and all small grains thrive, also millet, bromus 

 inermis, rape, and some of the root crops. The soil is a clay loam, 

 resting on a marl subsoil. Manure is very slow in decomposing. 

 The rotation should be suited to general farming, wheat or flax 

 being the important market crop. 



8. Plan for a southern farm a rotation in which cotton forms an 

 important part. 



