Ill] 



UNIT PRICES OF MANURES 



35 



The following are prices which obtained just before the out 

 break of the war: 



Current unit prices are published each month in the Journal 

 of the Board of Agriculture. 



Comparisons between nitrate of soda and sulphate of ammonia, 

 and between the various phosphatic manures, may be facilitated 

 by the following tables: 



When nitrate of soda is 



Sulphate of ammonia 



should be about 



When sulphate of ammonia is 

 Nitrate of soda should be 

 about .. 



When 30 % superphosphate is 

 Then a high grade basic slag 



(34% soluble) should be 



about 

 Steamed bone flour and bone 



meal should be about 



