6 CONTROL SERIES No. 54 



COMPARATIVE COST OF FERTILIZER CHEMICALS AND UNMIXED 

 FERTILIZER PRODUCTS 



The followinji average quotations were compiled from data secured from the 

 Oil, Paint and Drug Reporter and Chemical Markets. 



Wholesale Quotations on Chemicals and Unmixed Materials. 



a Bulk. 



A comjiarison of tlie average price of fertilizer cliemicals and unmixed materials 

 for the period from September to March with the price for the corresponding 

 jicriod in 1929 shows that, with the exception of potash salts, which have shown 

 a very small advance, all fertilizing materials have shown a very decided decline 

 in cost. This should mean a lower cost of mixed fertilizer for 193L 



Fertilizer Trade Values for 1929. 



1 Fine bone and tankage refeis to particles which as sampled will pass through a sieve with cir- 

 cular openings 1-.50 of an inch in diameter. Coarse bone and tankage refers to that portion which 

 will not pass through the sieve. 



