No. 7. 



DEPARTMENT OF AGRICULTURE. 



759 



A comparison of the average composition of all samples of com- 

 plete fertilizers for which guaranties are recorded with the average 

 of the corresponding guaranties, for several seasons past including 

 those of this season follows: 



Average Composition and Guaranty Compared. 



Fall, 1901. 

 Phosphoric acid: 



Total 



Available 



Potash 



Nitrogen, 



Spring, 1902. 

 Phosphoric acid: 



Total 



Available 



Potash 



Nitrogen 



Fall, 1902. 

 Phosphoric acid: 



Total 



Available 



Potash 



Nitrogen, 



Spring, 1903. 

 Phosphoric acid: 



Total 



Available, 



Potash 



Nitrogen, 



Fall, 1903. 

 Phosphoric acid: 



Total 



Available 



Potash -. 



Nitrogen 



Spring, 1904. 

 Phosphoric acid: 



Total 



Available 



Potash 



Nitrogen 



11.51 



10.60 



2.77 



1.39 



10.80 

 8.25 

 3.90 

 1.62 



12.58 

 9.95 

 2.69 

 1.57 



11.90 

 9.36 

 3.85 

 1.58 



10.76 

 8.84 

 2.89 

 1.33 



10.24 

 8.27 

 4.09 

 1.58 



9.82 



8.06 

 2.66 

 1.39 



9.29 



7.82 

 3.66 

 1.58 



U.40 

 9.29 

 2.60 

 1.55 



10.67 

 8.73 

 3.63 

 1.61 



9.65 

 8.13 

 2.80 

 1.29 



9.32 



7.87 

 3.90 

 1.55 



