CONTROL SERIES No. 51 

 Wholesale Quotations on Chemicals and Unmixed Materials. 



As the season advances, the quotations on most ammoniates are usually some- 

 what higher. Even so, the prices for assembled goods in 1930 should not show an 

 advance over this season's quotations. If the grade is increased by the adoption 

 of nitrogen in place of ammonia, a corresponding increase in price should be 

 expected. 



The following fertilizer trade values were adopted for 1929 by the Massachusetts 

 FertiUzer Control. They are based on average wholesale quotations for the six 

 months ending March 1, 1929, plus 20 per cent for overhead, proper allowance 

 being made for bags and labor when bulk quotations are given and for freight when 

 shipping point is outside of New England or New York. 



Fertilizer Trade Values for 1929. 



Form of Plant Food. 



Value per 

 Pound. 



Unit 

 Value. 



Nitrooen 

 In ammonia salts . . ■ . 



In nitrates ......... 



Organic nitrogen in fish ........ 



Organic nitrogen in blood, meat and hoof meal .... 



Organic nitrogen in fine' bone and tankage .... 



Organic nitrogen in coarse ' bone and tankage, and in pulverized manures 

 Organic nitrogen in mixed fertilizers ...... 



Organic nitrogen in cottonseed meal, castor pomace, etc. 



Organic nitrogen in calurea and urea ..... 



Phosphoric Acid. 

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



Soluble in neutral citrate of ammonia (reverted) 



In fine bone and tankage and in fish ...... 



In coarse bone and tankage ....... 



In pulverized manures, seed residues and ashes .... 



■ Insoluble in mixed fertilizers ....... 



Potash 

 As sulfate .......... 



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



As nitrate .......... 



As carbonate .......... 



Total in pulverized manures and seed residues, and the water insoluble 

 portion in ashes ........ 



.145 



.17 



.47 



.34 



.375 



.2875 



.34 



.36 



.15 



.06 



.05 



.055 



.045 



.04 



.02 



.058 

 .043 

 .065 

 .10 



.04 



$2.90 

 3.40 

 9.40 

 6.80 

 7.50 

 5.75 

 6.80 

 7.20 

 3.00 



1.20 



1.00 



1.10 



.90 



.80 



.40 



1.16 



.86 



1.30 



2.00 



.80 



* Fine bone and tankage refers to particles which without further grinding will pass through a 

 sieve having circular openings 1-50 of an inch in diameter. Coarse bone and tankage refers to 

 that portion which will not pass through the sieve. 



