52 



IIATC'II EXPERLMKNT STATION. 



[Jan 



From the above ta])le it will be seen that the quality of 

 the licensed fertilizers during the past year has not been up 

 to the usual standard. 



Trade Values of Fertilizing Ingredients in Raw Materials and Chemicals, 

 1904 and 1905 {Cents per Pound). 



1904. 



1903. 



Nitrogen in ammonia salts 



Nitrogen in nitrates, 



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

 grade mixed fertilizers, 



Organic nitrogen in fine bone and tankage, 



Organic nitrogen in coarse bone and tankage, 



Phosphoric acid soluble in water, 



Phosphoric acid soluljle in ammonium citrate 



Phosphoric acid in flue-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 neutral citrate of ammonia) 

 in mixed fertilizers, 



Potash as sulfate, free from chlorides 



Potash as muriate (chloride) 



Potash as carbonate, 



17.50 

 16.00 



17.50 

 17.00 

 1-2.50 

 4.50 

 4.00 

 4.00 

 4.00 

 3.00 



2.00 

 5.00 



4.25 



17.50 

 17.00 



18.50 

 18.00 

 13.00 

 4.50 

 4.00 

 4.00 

 4.00 

 3.00 



2.00 

 5.00 

 4.25 



8.00 



A comparison of the market cost of the three essential 

 elements of plant food for 1905 with the previous year 

 shows the 011I3' variation to be in the various forms of 

 nitrogen compounds : nitrogen in the form of nitrates, and 

 the hiaher <>Tades of ori>anic nitro<yen, including nitrogen in 

 high-grade mixed fertilizers, is a cent higher per pound ; 

 while the medium and lower o-radcs of orijanic nitrogen also 

 show an increased cost of one-half cent per pound. All 

 nitrogen compounds, with the exception of ammoniates, 

 show somewhat of an increase in cost as compared with 

 li)04. 



The above schedule of trade values was ado])tod by repre- 

 sentatives of the Massachusetts, Connecticut, Rhode Island, 

 Maine, Vermont and New Jersey ex})eriment stations at a 

 conference held during the month of Mar(;h, 1905, and is 

 based upon ((uotations in the fertilizer market in centers of 

 distribution in New Kngland, New York and New Jersey 

 during the six months prec(!ding March, 1!)05, and refers to 

 the current market prices, in ton lots, of the leading stand- 

 ard raw materials furnishing nitrogen, phosphoric acid and 

 potassium oxide, and which go to make up our commercial 

 izers, 



