26 



Table showing the average composition of the three grades of 

 fertilizers. 



GRADE 



•2 <^ 



OX: 



(C o 



I Per Cent of 

 I Phosphoric Acid 



O^ I 3 

 >-►? : 3 









EiJ 



High j 153 



Medium 103 



Low 75 



46.22;4.12 4.00 

 31.12 2.612.93 



22.66 



1.664.53 



3.32 

 2.94 

 2 



827 



7.32 

 5.87 

 35 



7.64 

 5.12 

 2.90 



19.08 

 13.6a 

 11.91 



What is shown by the above tables : 



(1). That the average ton price for the three grades of fer- 

 tilizer has been nearly $2.00 more for 1911 than for the previous 

 year, altho but little difference is noticed in the average valuation 

 per ton for the two years. 



(2). That the percentage excess of the selling price over the 

 valuation in the low grade fertilizers is about 234 times more than 

 it is in the high grade goods and over 1}^ times more than in the 

 medium grade fertilizers. 



(3). That with a 38 per cent advance in price over the low 

 grade fertilizer, the high grade furnishes about 88 percent increase 

 in commercial value. 



(4). The average high grade fertilizer with a 16.5 percent ad- 

 vance in price over the medium goods, furnishes 47.6 percent more 

 plant food and 37.3 percent increase in commercial value. 



(5). That with a 38 percent advance in price over the low 

 grade fertilizer, the high grade furnishes more than 60 percent in- 

 crease in available plant food. 



(6). A ton of the average high grade fertilizer furnishes 49.2 

 lbs. more nitrogen and 94.8 lbs. more of actual potash than does a 

 ton of the low grade goods. 



(7). A ton of the average high grade fertilizer furnishes 30.2 

 lbs. more nitrogen and 50.4 lbs. more potash than does a ton of the 

 medium grade goods. 



