The following table of trade values, which iiiay be applied to the cost of plant 

 food in mixed fertilizers the past season, is based on average wholesale cash quota- 

 tions on standard chemicals and crude stock materials in New England, New York 

 and New Jersey markets, plus 20 per cent, quotations being taken from the trade 

 journals for six months preceding March 1, 1922. 



Price per 

 Pound. 



Unit Price. 



Nitrogen. 

 In ammonia salts ........... 



In nitrates ............. 



Organic nitrogen in fish, blood and meat ....... 



Organic nitrogen in fine ' bone and tankage 



Organic nitrogen in coarse i bone and tankage 



Organic nitrogen in mixed fertilizers ........ 



Organic nitrogen in castor pomace, cottonseed, rapeseed and linseed meal 



Phosphoric Acid. 

 Soluble in water ............ 



Reverted- 



In fine' bone and tankage .......... 



In coarse 1 bone, tankage and ashes 



In castor pomace and other vegetable meals ...... 



Insoluble in mixed fertilizers 



Potash. 



As sulfate 



As muriate .............. 



In ashes and organic vegetable products ....... 



06 

 05 

 05 

 04 

 04 

 015 



065 



05 



05 



$3 00 



3 60 

 5 40 

 5 00 



4 00 



5 00 

 8 00 



1 20 



1 00 



1 00 



80 



80 



30 



1 30 

 1 00 

 1 00 



1 Fine bone and tankage refer to particles which will upon agitation pass through a sieve having circular open- 

 ings -^jj of an inch in diameter. Coarse bone and tankage refer to particles which will not pass through the sieve. 



- Dissolved by a neutral solution of ammonium citrate, specific gravity 1.09, in accordance with method 

 adopted by the Association of Official Agricultural Chemists. 



