614 



Journal of Agriculture, Victoria. [10 Oct., 1918. 



growth on one square yard of each plot at the time the samples were 

 taken on 7th September. The phosphoric acid in Thomas' phosphate 

 (which is now practically unobtainable owing to the war) being in a 

 less soluble form, the result from this fertilizer is not nearly so 



Fig. 2. — Showing the variation in growth of self sown crop on a few plots. 



5 cwt. 12-9 cwt. 17-8 cwt. 



22-9 cwt. 34-8 cwt. 9-4 cwt. 2'6cwt. 



rig. 3.— Self-sown Wheat. 

 (Each sheaf represents the average yield from one square yard.) 



pronounced as that from superphosphate. It will also he seen that the 

 phosphoric acid contained in the latter has apparently neither leached 

 out in the wet season experienced at the end of 1916, or reverted to a 



