30 



TRADE VALUES OF FERTILIZING INGREDIENTS IN RAW 

 MATERIALS AND CHEMICALS. 



1901 



Cents per pound 



Nitrogen in ammonia salts, ~ 16.5 



" nitrates, 14.0 

 Organic nitrogen in dry and fine ground fish, meat, blood, 



and in high-grade mixed fertilizers, 16,0 



" " " fine bone and tauknge, 16.0 



" " " medium bone and tanliage, 12.0 



Phosphoric acid soluble in water, 5.0 



" " soluble in ammonium citrate, 4.5 



" " in fine ground fish, bone and tankage, 4.0 

 " "in cottonseed meal, castor pomace 



and wood ashes, 4.0 



" "in coarse fish, bone and tankage, 3.0 

 " " insoluble ('in water and in am. cit.) 



in mixed fertilizers, 2.0 



Potash as Sulphate, free from Chlorides, 5.0 



" " Muriate, , - 4.25 



The market value of low priced materials used for manurial pur- 

 poses, as salt, wood ashes, various kinds of lime, barnyard manure, 

 factory refuse and waste materials of different description, quite 

 frequently does not stand in close relation to the cuirent market 

 value of the amount of essential articles of plant food they contain. 

 Their cost varies in different localities. Local facilities for cheap 

 transportation and more or less advantageous mechanical conditions 

 for a speedy action, exert as a rule, a decided influence on their sell- 

 ing price. 



Valuation. The approximate value of a compound fertilizer or 

 any material used for fertilizing purposes is obtained by calculating 

 the value of each of the three essential elements of plant food (nitro- 

 gen, phosphoric acid and potassium oxide, including the different 

 forms of each wherever different forms are recognized in the table), 

 in one hundred pounds of the fertilizer and multiply each product by 

 twenty to change it to a ton basis. The sum of these values will give 

 the total approximate value of the fertilizer per ton at the principal 

 places of distribution. 



