62 



of the best quality. Quantity and quality considered, the complete 

 fertilizer gave the most satisfactory results, but not the most profit- 

 able. Potash, for this ci'op as for corn, seemed to be most deficient 

 in this soil. This is thus far the only experiment tried under my 

 direction on potatoes and I am not justified in forming any sweeping 

 conclusions. It, however, appears to me likely that the " special 

 potato fertilizers " in the market furnish too small a proportion of 

 potash. It will pay, I believe, to use them in moderate quantities, 

 if at all, in connection with sulphate of potash for the heavier and 

 muriate of potash for the lighter soils. 



