EXERCISE A-32. 



TO STUDY THE ADAPTABILITY OF 

 SOILS TO CROPS. 



Equipment: Spade or soil auger; note-book. 



Method: Make a trip across several farms and note 

 the kind of crops that are being grown on sandy soils, 

 on clay loams and on wet clay soils. 



Fig. 28. — The Effect of Lime upon the Growth of Clover. 



Discussion: Some crops can be grown on a great 

 variety of soils, while others require a particular type for 

 profitable growth. Timothy can be grown successfully on 

 heavy clay, clay loam or sandy loams, but it usually does 

 best on the clays, while corn is grown most profitably on 

 rich loam soil.. Irish potatoes require a loose rich loam 



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