686 



Agricultural Journal of Victoria. 



Analysis of Manures Used. 



Experiments 1902-3. 

 superphosphate. 



Water soluble phosphoric acid 

 Citrate soluble phosphoric acid 



Total phosphoric acid 



THOMAS PHOSPHATE. 



Citrate soluble phosphoric acid 

 Insoluble phosphoric acid 



Total phosphoric acid 



Experiments 1903-4. 

 superphosphate. 



Water soluble phosphoric acid 

 Citrate soluble phosphoric acid 



Total phosphoric acid 



THOMAS PHOSPHATE. 



Citrate soluble phosphoric acid 

 Insoluble phosphoric acid 



Total phosphoric acid 



17-63 

 1-55 



1918 



14^79 

 2-37 



17-16 



19-19 

 1^62 



20-81 



11-83 

 5-41 



17-24 



It will be observed that the superphosphate used last year was of 

 a slightly higher standard than that used in the preceding, while 

 with Thomas phosphate, owing to the larger percentage of insoluble, 

 the position was reversed, both differences contributing to the larger 

 relative superiority of the superphosphate in the returns of the present 

 than earlier results. Field results, it will be seen from the following 

 figures, have largely supported the figures of the analysis. 



Yields of Hay in Tons on Fields Manured with 

 Superphosphate and Thomas Phosphate. 



The results of both years show differences in favor of the use of 

 superphosphate sufficiently large to merit consideration. This i& 

 especially the case in the second year's returns. 



The Average Results Api'licablb to Soils Generally. 

 A study of the individual returns of Table B will reveal the fact 

 that the conclusions to be drawn from the figures of the average of 



