1900.] 



PUBLIC DOCUMENT — No. 33. 



Ill 



economical fertilizer to buy, but rather the one that will fur- 

 nish the greatest amount of nitrogen, potassium oxide and 

 phosphoric acid, in a suitable and available form, for the 

 same money. 



Trade Values of Fertilizing Ingredients in Maio Materials and 

 Chemicals^ 189S and 1899 {Cents per Pound). 



1898. 1899 



Nitrogen in ammonia salts 



Nitrogen in nitrates 



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



grade fertilizers. 

 Organic nitrogen in fine bone and tankage 



Organic nitrogen in medium bone and tankage, 



Phosphoric acid soluble in water, 



Phosphoric acid soluble in ammonium citrate, 



Phosphoric acid in fine-ground fish, bone and tankage. 



Phosphoric acid in cotton-seed meal, castor pomace and wood ashes, 



Phosphoric acid in coarse fish, bone and tankage, .... 



Phosphoric acid insoluble (in water and in ammonium citrate) in mixed 



fertilizers. 

 Potash as sulfate (free from chlorides) 



Potash as muriate 



14.00 



13.00 



14.00 



13.50 



10.00 



4.50 



4.00 



4.00 



4.00 



3.60 



2.00 



6.00 



4.25 



15.00 



12.50 



14.00 



14.00 



10.00 



4.50 



4.00 



4.00 



4.00 



2.00 



2.00 



5.00 



4.26 



The cost of some of the leadino; forms of nitrogen shows 

 an increase, as compared with the preceding year, 1898. 



The above trade values are based on the market cost, 

 during the six months preceding March, 1899, of standard 

 raw materials which arc largely used in the manufacture of 

 compound fertilizers found in our markets 

 is a list of such materials : — 



The following 



Sulfate of amraouia. 



Azotine. 



Cotton-seed meal. 



Linseed meal. 



Bone and tankage. 



Dissolved bones. 



Acid phospliate. 



High-grade sulfate of potash. 



Sulfate of potash and magnesia. 



Sylvinito. 



Nitrate of soda. 



Dried blood. 



Castor pomace. 



Dry ground fish. 



Dry ground meat. 



Ground phosphate rock. 



Refuse bone-black. 



Muriate of potash. 



Kainite. 



Crude saltpetre. 



