Mixtures of Nitrogenous and Mineral Manures. 159 



original amount applied as nitrate of soda, and then of half the 

 quantity, also as nitrate, in each case used in conjunction 

 with the same mixed mineral manure, including potash, as 

 that applied to plot 7 ; and, following the same order as with 

 the mineral manures used alone, comparison will then be 

 made of the results obtained by the ammonia-salts alone, by 

 the same with superphosphate of lime, with the mixed 

 mineral manure including potash, and with the mixed mineral 

 manure excluding potash. 



TABLE XXXVII. AVERAGE PER ACRE PER ANNUM, BY 400LB. AMMONIA- 

 SALTS, WITH MIXED MINERAL MANURE CONTAINING POTASH ; PLOT 9. 



Average per Acre per Annum. 



7. 400Z&. Ammonia-Salts with Mixed Mineral Manure con- 

 taining Potash : Plot 9. The average results on this plot are 

 recorded in the foregoing Table XXXVII. 



