440 



ANNUAL, REPORT OF THE 



Off. Doc. 



Wholesale Cost per Pound of Fertilizing Constituents, New York. 

 1. Ingredients Supplying One Constituent. 



Materials. 



Constituents Valued. 



3 



6 



o 



.a 



8 



W 

 

 •"• • 



■*-» 



p. 



a) 



Sulphate of ammonia 



Nitrate of soda 



Dried blood 



Concentrated tankage, 



Phosphate rock, Tenn., 7S per cent 



Acid phosphate 



Double sulphate of potash and magnesia, 



Sulpljate of potash 



Kainit 



Muriate of potash 



Nitrogen 



NitroRf n 



Nitrogen 



Nitrogen 



Phosphoric acid, total)* . 

 Phosphoric acid, available, 



Potash 



Potash. 



Potash 



Potash 



li.54 



14.94 



18.88 



16.75 



.66 



2.62 



4.60 



4.74 



3.oe 



3.76 



17.45 



17.93 



22M 



20.10 



.79 



3.14 



S.50 



5.69 



3.67 



4.41 



*The prices of phosphate rock are f. o. b. at the respective points of shipment, not New York. 

 The prices for potash are taken from the schedule of the syndicate, and those of the remainder 

 from the Oil, Paint and Drug Reporter. 



The quotations for bone are given without specific reference to 

 quality, so that it is impossible, from these data, fairly to apportion 

 their several wholesale values to the nitrogen and phosphoric acid 

 contained in this material. As compared with tankage, the general 

 tendency is to assign a higher commercial rating to the phosphoric 

 acid in bone, and to the nitrogen, a rating not very different from 

 that given in tankage. 



In former years, the value assigned to the bone nitrogen has been 

 the same as that quoted on crushed tankage, c. a. f. Baltimore. In 

 later years, quotations for both crushed tankage and ground tank- 

 age have not been available, and for that reason, the value of bone 

 nitrogen is based upon the quotations for concentrated tankage. 



In earlier years, quotations on ground tankage have been about 

 5 per cent, in advance of those on concentrated tankage; also quota- 

 tions on crushed tankage were on an average 12.67 per cent, in ad- 

 vance of those on ground tankage. Increasing the price of concen- 

 trated tankage by these percentages, we have |3.27 per unit of am- 

 monia as the value assigned to the nitrogen in bone. 



This is equivalent to |3.97 per unit of nitrogen. 



The average composition of the ground bone and bone meal sam- 

 ples analyzed last year in Pennsylvania was: Phosphoric acid, 22.86 

 per cent.; nitrogen 3.61 per cent. 



The prepared bone contains less fat and moisture, and often less 

 nitrogen than the ordinary rough bone, but these differences tend, in 

 a measure, to neutralize each other. Assuming for the rough bone 

 quoted in the New York market the same composition as the bone 

 meal sold in Pennsylvania, and for the value of the nitrogen |3.97 

 per unit, as previously stated, the values per pound of the several 

 constituents would be: 



I 



