No. 5. 



DEPARTMENT OF AGRICULTURE. 



437 



Fertilizers. 



Fall. 1912. 



Complete 



Eock-and-potash, 



Dissolved bone 



Ground bone 



Dissolved rock, 



Spring, 1913. 



Complete, 



Roek-and-potash, 



Dissolved bone, 



Ground bone, .. 



Dissolved rock 



Fall, 1913 



Complete, 



Rock-and-potash, 



Dissolved bone, 



Ground bone 



Dissolved rock, 



22.16 

 15.88 

 23.80 

 30.55 

 13.80 



26.08 



16.75 

 18.65 

 33.86 

 13.96 



21.92 

 16.25 

 24.75 

 31.12 

 13.51 



1.33 



.67 

 1.70 

 4.29 



.12 



1.36 



—.23 



3.08 



—1.36 



.29 



2.44 



.60 



—.49 



l.&l 

 .19 



The following statement from the weekly reports of the Oil, Paint 

 and Drug Reporter, of New York, shows the average wholesale 

 prices of fertilizer raw materials from September 1, 1912, to March 

 1, 1913, and from September 1, 1913, to March 1, 1914. 



Substance, 



Amount Priced. 



•gSS 

 m 



W5^ 



Oh 



Sulphate of ammonia 



Nitrate of soda 



Dried blood, H. G 



Concentrated tankage 



Rougli bone 



Bone meal, 



Fish guano, dry, 



Phosphate rock, Tenn 



Acid phosphate, 



Double manure salt, 



Sulphate of potash 



Kainit 



Muriate of potash 



Sulphuric acid, 66 degrees B 



Cwt 



Cwt 



Unit (201 lbs.) 

 Unit (£0 lbs.) 



Ton 



Ton 



Unit (20 lbs.) 



Ton 



Unit (20 lbs.) 



Ton 



Ton 



Ton 



Ton 



Cwt 



£9.5 



89.5 

 113.6 

 U5.0 

 lOO.O 

 100.0 

 106.3 

 lOO.O 

 100.0 

 100.1 

 100.8 

 99.7 

 99.5 

 100.0 



In ammoniates such as dried blood and fish guano, the unit is of 

 ammonia, of which 82.25 per cent, is nitrogen ; in acid phosphate the 

 unit is of phosphoric acid (phosphorus pentoxid). 



There has been a decided rise in the prices of some of the organic 

 ammoniates, and a decrease in the cost of nitrogen from inorganic 

 sources. 



Phosphate rock, sulphuric acid and acid phosphate show little 

 ^change in prices compared with last year. 



