FERTILIZERS AND AGRICULTURAL LIME 



41 



Animal Tankage, Ground Fish, Process Tankage, Dried Blood, 

 Milorganite and Horn and Hoof Meal 



These products were examined for evidence of adulteration by either the 

 addition of inorganic nitrogen carriers or the inclusion of materials containing the 

 major portion of their nitrogen in water soluble organic form. With one exception 

 all samples tested contained normal percentages of water insoluble nitrogen. The 

 water soluble nitrogen content of one sample of animal tankage was considerably 

 above the average found in the other samples and must be considered as abnormal 

 for animal tankage. 



The activity of the water insoluble nitrogen of these organic fertilizers was 

 tested by the alkaline permanganate method and in all cases was found well above 

 the minimum percentage considered satisfactory, indicating either the absence of 

 low grade, slowly available organics, or their presence in only small quantities. 



None of these samples contained more than traces of ammonia nitrogen. 



Dried Blood, Milorganite, Horn and Hoof Meal, Process Tankage, and Organo 



Manufacturer and Brand 



American Agricultural Chemical 

 Co. 



Agrinite ... . • 



Consolidated Chemical Industries 

 Inc. 



Protena Process Fertilizer Tankage 

 Organo, Inc. 



Organo No. I 



Organo No. 2 . . . 

 John Reardon & Sons Division of 

 Wilson & Co., Inc. 



Rearco Dried Blood 

 Sewerage Commission of the City 

 of Milwaukee 



Milorganite 



Universal Chemical Co. 



UCCO Brand Dried Blood . 



Nitrogen 



Found 



8.59 



7.28 



3.70 

 6.90 



13.04 



6.07 

 14.02 



Guaran- 

 teed 



8.50 



7.07 



3.00 

 6.50 



12.00 



6.00 

 14.00 



Total 

 Phosphoric Acid 



Found 



3.45 

 4.65 



3.45 



Guaran- 

 teed 



2.00 

 3.00 



Water Solublb 

 Potash 



Found 



Guaran- 

 teed 



1.59 

 1.40 



1.00 

 1.00 



Sample Showing Commercial Shortage of More than $1 per Ton 



Organo, Inc. 



Horn & Hoof Meal 



13.526 



14.00 



a Available phosphoric acid guaranteed 2.00%, found 3.01%- 

 b Commercial shortage $2.40 per ton. 



