The Composition and Use oe Fertilizers. 309 



SCHEDULE OF VALUES FOE FERTILIZER INGRE- 

 DIENTS, 1901. 



. Cents 



per pound. 



Nitrogen, in ammonia salts 10| 



in nitrates 14 



in dry and fine ground fish, meat and blood, 



and in mixed fertilizers 1G 



in cotton seed meal and castor pomace 14 



in fine bone and tankage 16 



in coarse bone and tankage 12 



Phosphoric acid, soluble in water 5 



soluble in ammonium citrate 4J- 



insoluble in ammonium citrate, in 



bone fertilizers 2 



Phosphoric acid in fine bone, tankage and fish 4 



Phosphoric acid in coarse bone and tankage 3 



Phosphoric acid in cotton seed meal, castor pomace and 



wood ashes 4 



Potash in high grade sulphate and in forms free from 



muriate (or chloride) 5 



as muriate 4| 



Potash in excess of that equivalent to the chlorine present is 

 to be valued as sulphate, and the remainder as muriate. 



Nitrogen in mixed fertilizers is to be valued as derived from 

 the best sources of organic nitrogen, unless clear evidence to the 

 contrary is obtained. 



Bone is sifted into two grades of fineness: Fine, less than 1-50 

 inch in diameter; coarse, over 1-50 inch in diameter. 



The result obtained by the use of these valuations does not 

 cover the items of mixing, bagging, freight and agents' commis- 

 sion. 



Valuation and Cost of Fertilizers. — The total cost (to the 

 farmer) of a ton of commercial fertilizer may be regarded as con- 

 sisting of the following elements: (1) Retail cash cost, in the mar- 

 ket, of unmixed trade materials; (2) cost of mixing and bagging; 

 (3) cost of transportation; (4) storage, commissions to agents and 

 dealers, selling on long credit, bad debts, etc. While the total cost 

 of a fertilizer is made up of several different elements, a com- 

 mercial valuation includes only the first of the elements entering 



