96 



AGRICULTURE 



beneficial in making the soil mellow and able to hold mois- 

 ture. These cannot be bought in commercial fertilizers, 

 which increase the crops chiefly in the year in which they 

 are used. Stable manure makes the soil richer for a 

 number of years. 



FIG. 61. GOOD TILLAGE, MAKING GOOD FERTILIZING PROFITABLE 

 Note, on the left, that the peach trees are set on contours or terraces. 



