216 LESSONS IN AUKK ULTUBE 



2. Crop Rotations on the Home Farm 

 Describe the system of crop rotation used on your 



father's farm. Give in detail each step as the outline 



suggests above. 



Compare the system used at your home with those 



described by the other members of the class. Criticize 



and discuss the various methods. 



Free Bulletins, U. S. Dept. of Agriculture 

 No. 289. Practices in Crop Rotation. 

 No. 320. Relation of Sugar Beets to General Farming. 



Problems 



1. If corn is planted in rows four feet apart each 

 way, how many hills to the acre ? With three good ears 

 to the hill, how many ears to the acre? 



2. If it takes 100 ears to make a bushel, how many 

 bushels to the acre ? 



3. Which is the better crop? Five stalks to the hill 

 that bear ears requiring 200 to make a bushel, or three 

 stalks to the hill that bear ears requiring 100 to make 

 a bushel ? 



4. How many bushels per acre is one crop better 

 than the other ? 



5. Suppose a ten-acre field produces sixty bushels 

 of corn per acre the first year, but falls off five bushels 

 per acre yearly when corn is continually grown on it, 

 what will be the yield the fourth year? 



6. What will be the total loss in the four years? 

 With corn worth 30 cents per bushel, what is the money 

 loss? 



7. Suppose this loss can be avoided by rotation of 



