November, 1938) COMMERCIAL FERTILIZERS 5 



In Table I are tabulated the grades of complete fertilizers 

 analyzed in this year's inspection, the number of brands 

 sampled by the inspector in each grade, the average per cent 

 of nitrogen, of available phosphoric acid, of water soluble 

 potash and the average retail price per ton. 



TABLE I 



Formula 



T3 

 C 



E 



<s 



p. a 

 o 



si bo 



bo g 



> 



Oj o 

 P.T3 



<c « .2 



bo" fc. 



ce « o 



?> C3 P. 



S.2 



uB. 



OJ O 



P. to 



0) h "3 

 bo O 03 

 e t» ** 

 » £ P. 

 4 



"- .2 



bo 



03 u 

 •~ 0> 

 0) p, 





2-8-10 

 2-12-4 

 3-10-4 



:;-io-6 



4-8-4 

 ' 4-8-7 

 4-8-8 

 4-8-10 

 4-12-4 

 4-12-6 

 4-16-4 

 .",-8-7 

 5-8-10 

 5-10-4 

 5-10-10 

 6-8-6 

 7-5-3 

 7-6-6 

 7-8-6 

 7-14-19 

 8-5-8 

 8-6-2 

 8-8-8 

 8-16-14 

 ■<-16-16 

 8-16-20 

 8-20-12 

 8-24-8 



1 



1 

 5 

 1 



10 

 3 

 2 

 9 

 3 

 1 

 1 



11 

 3 

 1 

 1 

 1 

 1 

 5 

 1 

 1 

 1 

 2 

 1 

 4 

 2 

 2 

 1 

 1 



