28 



TRADE VALUES 

 OF FERTILIZING INGREDIENTS IN RAAV MATERIALS 



AND CHEMICALS. 



1900. 



Cents per pound. 



Nitrogen in ammonia salts, 17.0 



" nitrates, ' 13.5 

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



and in high-grade mixed fertilizers, 15. .0 



" " " fine bone and tankage, 15.5 



" " " medium bone and tankage, 11.0 



Phosphoric acid soluble in water, 4.5 



" " soluble in ammonium citrate, 4.0 



" " 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 

 fiequently does not stand in close relation to the current 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 

 selling price. 



The market cost of the different essential elements of plant food, 

 with the exception of the nitrogen compounds, compares favorably 

 with the prices of the same ingredients for the year 1899. Nitrogen 

 compounds show a material increase in cost as compared with the 

 previous year. 



