TO SHOW THE EFFECT OF LIME UPON THE SOIL 65 



Discussion: The addition of lime to a heavy clay 

 soil causes the very fine particles of which it is composed 

 to draw together into crumbs or granules. Then when 

 the soil dries, instead of being a hard, solid mass which 

 will break up and form hard clods, it is loose and mellow. 

 A similar effect is produced by the addition of organic 

 matter in the form of stable manure, or by plowing under 

 a crop of clover or rye. 



