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AGRICULTURE 



In three years under this rotation a field bears three 

 fiber and grain crops (cotton, oats, and corn) and four 

 crops of soil-improving forage plants (cowpeas and crim- 

 son clover, each twice). 



EXERCISE. What farm or garden crops, that are extensively grown 

 in your neighborhood, leave the field most free from weeds ? Which 

 one permits weeds to grow ? Can the corn crop be harvested in time 

 for wheat or fall-sown oats to be sown ? 



NOTE TO THE TEACHER. Encourage pupils who have grown up on 

 forms to write on the blackboard a statement of the best rotation in 

 use by any farmer of their acquaintance, and to decide whether any of 

 the teachings of this Section and of Section XXX suggest a possible 

 improvement in the local rotation of crops. 



FIG. 76. A COTTON FIELD, SHOWING A BOUNTIFUL YIELD FROM ROTATION 

 OF CROPS AND THOROUGH CULTIVATION 



