1922. 



PUBLIC DOCmiENT — No. 31. 



35 a 



Materials. 



Brands 

 registered. 



Brands 

 sampled. 



Analyses 

 made. 



Complete fertilizers 



Ammoniated superphosphates . 

 Superphosphates with potash . 

 Ground bone, tankage and dry ground fish 

 Nitrogen compounds .... 



Phosphoric acid compounds 



Potash compounds 



Wood ashes 



Pulverized animal manures 



Lime compounds 



Totals 



300 

 49 



7 

 55 

 77 

 32 

 16 



3 

 11 

 31 



581 



287 

 38 



6 

 50 

 63 

 30 

 14 



3 



527 



308 



43 



7 



70 



223 

 33 

 19 

 29 

 23 

 28 



Full details of the fertilizer inspection work may be found in 

 Bulletin Xo. 16, Control Series, published in November, 1921; 

 and of the lime inspection work, in Bulletin No. 17, Control 

 Series, published in December, 1921. 



Fertilizer Grades and Tonnage sold in Massachusetts 

 FROM Jan. 1 to July 1, 1921. 

 From Jan. 1 to July 1, 1921, there were 54,370 tons of com- 

 mercial fertilizer and fertilizing materials sold in Massachusetts, 

 divided as follows:' — 



Mixed fertilizers 



Unmixed fertilizing materials 



Pulverized natural manures . 



Tons. 



37,579 

 15,073 



1,718 



The grades and tonnage of the mixed fertilizers are shown 

 in the following tables, which are arranged to show in the order 

 of their largest tonnage the various grades of (1) high and low 

 analysis complete fertilizers, (2) high and low analysis am- 

 moniated superphosphates and superphosphates with potash, 

 and (3) unmixed fertilizer materials: — 



