10 



N. H. AGR. EXPERIMENT STATION [Bulletin 206 



TABLE NO. Ill 



The wide range of prices shows the necessity of selecting 

 fertilizers carefully in order to obtain the most plant food 

 for the dollar. 



ACIDULATED PHOSPHATES 



Six brands of acid phosphates were analyzed which show- 

 ed from 15.59 to 16.87 per cent, available phosphoric acid. 

 The price ranged from $22.00 to $35.00 per ton. This wide 

 range in prices again emphasizes the need of careful selec- 

 tion in buying fertilizers. 



SHEEP MANURE TOO EXPENSIVE 



Five brands of sheep manures were analyzed which aver- 

 aged 1.67 per cent, nitrogen, 1.18 per cent, phosphoric acid 

 and 2.08 per cent, potash. The price ranged from $50.00 

 to $65.00 per ton, averaging $56.25. Figuring their value 



