Grade. 

 Date. . 



EXERCISE 38 

 ROTATION OF CROPS 



Object. To learn the principles underlying the rotation of crops. 

 Part I. To Diagram a Rotation. The squares represent fields, and 

 the figures 1, 2, 3, 4, 5, the successive years. A new cycle begins the 5th year. 



Diagram a common rotation in your locality. You should make as 

 many squares as there are fields or years in a cycle of the rotation. 



Part n. To Fertilize a Rotation. Answer the following questions. 

 They should be approved before being copied into this page. 



1. Where would commercial fertilizer be applied in the above rotation? 



2. Where should manure be applied? 



3. What plant material such as stubble, sod or green manure crops may 

 be plowed under? 



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