INSPECTION OF COMMERCIAL FERTILIZERS 



33 



Nitrogen Compounds 



The chemicals and unmixed materials under this heading are valued chiefly 

 for the nitrogen which they contain. Some of them, however, contain more 

 than this one element; the nitrate of potash containing potash; the calcium 

 nitrate and cyanamid containing lime; and the organic vegetable substances 

 containing small quantities of phosphoric acid and potash, as will be noticed 

 by a reference to the summary table on the previous page. 



Brands showing a commercial shortage of one dollar or more per ton are 

 listed by themselves, serious deficiencies being emphasized by boldface type. 



Sulfate of Ammonia and Nitrate of Soda 



a Standard brand. 

 6 Champion brand. 



Nitrate of Potash, Nitrate of Soda-Potasli 



a Nitrate of Soda-Potash. 



