Dec, 1935] Fertilizer Inspection, 1935 



MATERIALS 



ISIaterial 



Tonnage 



Material 



Tonnage 



CONFORMITY TO GUARANTEE 



The total amount of nitrogen, available phosphoric 

 acid and potash guaranteed in the 83 brands of com- 

 plete fertilizer averaged 21.40 per cent. The amount 

 found by analysis was 21.81 per cent. The manufactu- 

 rers, therefore, furnished on the average 0.41 per cent 

 more than they guaranteed. The total amount fur- 

 nished was less than the total amount guaranteed in 

 19 brands. The greatest deficiency was 1.70 per cent. 

 The average of the other 18 deficiencies was 0.38 per 

 cent. Four brands were deficient in all three constitu- 

 ents. Seven brands were deficient in two of the three 

 constituents, four in nitrogen and available phosphoric 

 acid, three in nitrogen and potash, and three in avail- 

 able phosphoric acid and potash. 



Twenty-four brands were found to contain less than 

 the guaranteed amount of nitrogen. The greatest de- 

 ficiency was 0.61 per cent. The average of the other 23 

 nitrogen deficiencies was 0.19 per cent. 



One brand failed to meet the guarantee in total 

 phosphoric acid and 14 brands failed to meet the guar- 

 antee in available phosphoric acid. One brand was de- 



