INSPECTION OF COMMERCIAL 

 FERTILIZERS 



MADE FOR THE 

 STATE DEPARTMENT OF AGRICULTURE. 



The inspection of commercial fertilizers reported in 

 this bulletin was made under the direction of the Honor- 

 able Andrew L. Felker, Commissioner of Agriculture. 

 The state inspector, Mr. Eugene D. Sanbonn, collected 

 samples of 103 brands of fertilizer materials which were 

 offered for sale by dealers or had been delivered to con- 

 sumers between March and June, 1926. The general char- 

 acter of the fertilizer materials collected is shown by the 

 following classification : 



■^to 



Complete fertilizer 81 



Ground home 5 



Sheep manure 5 



Acid phosphate 4 



Nitrate of soda 3 



Tankage 2 



Poultry manure 1 



Muriate of potash 1 



Sulphate of ammonia 1 



103 



THE FERTILIZER LAW. 



Only eight of the forty-eight states have no laws regu- 

 lating the manufacture and sale of fertilizers. These 

 states are Arizona, Colorado, Idaho, Montana, Nevada, 

 New Mexico, Utah and Wyoming. None of these states 

 uses commercial fertilizers in large amounts. 



The main purposes of the laws of the different states 

 are similar. In general they require periodical registra- 

 tion of brands, accurate and not misleading labelling and 



