94 



Journal of Agriculture, Victoria. [11 Feb., 1918. 



INSPECTION OF FERTILIZERS. 



A Review of the Analytical Results of Samples Collected 

 during 1917. 



P. Rankin Scott, Chemist for Agriculture, and Will C. Rohertson, 

 Supervising Analyst. 



During the season 1917 sixty-eight samples were collected of the 

 various brands of artificial fertilizers on th© Victorian market. 



The majority of the samples were withdrawn from parcels at the 

 metropolitan concigning station, and from stocks at the factory. The 

 remainder were obtained from stocks on hand in country stores and 

 factories. 



The samples collected included " superphosphates," " bone dust- 

 sviperphosphate, " " bone fertilizer-superphosphate," " superphosphate- 

 bone," " nitro-superphosphate," "market garden manure," "bone 

 dust," " blood-bone," " dried blood," and " animal fertilizer." 



Approximately 60 per cent, of the parcels sampled consisted of 

 superplaosphate, and while this cannot be taken as an accurate guide, 

 owing to the fact that all consignments inspected are not sampled, yet 

 it serves to show the popularity of this form of fertilizer in Victoria. 



An Analysis of the Analyses of Collected Samples. 



The details of the analytical results of the samples collected have been 

 published. (See this Journal, January, 1917.) 



On striking an average from the results of these analyses, and like- 

 wise computing the value, some interesting information is obtained. 



A comparison between these figures and those computed from the 

 average guaranteed analysis is of importance in rhowing the farmer the 

 guaranteed value and its relation to the calculated value, i.e., the value 

 supplied. 



For the purpose of simplicity, the fertilizers are dealt with separately. 



Table I. 

 Superphosphate. 



I 



