692 



AgriculturaL Journal of Victoria. 



The figures disclose, in cases^ a very marked action on the part of 

 sulphate of ammonia, and there seems every reason to believe that 

 the yields of hay crops, on the generality of soils in the South, 

 may be increased by the application of a suitable nitrogenous fertilizer 

 to an extent exceeding the figures of the average. An attempt has 

 been made to illustrate by photographs the heavier yields of a few of 

 the nitrogen plots. In these cases, however, the quantity of nitrogen 

 applied was onlv one-half of that given in Plots 12 and 15 of 

 Table A. 



The Preferable Form of a Nitrogenous Fertilizer. 



Tests were carried out on the 50 fields, as already stated, to 

 determine the comparative effect of equal quantities of sulphate of 

 ammonia and nitrate of soda in combination with superphosphate. 

 The sulphate of ammonia was applied with the drill at the time of 

 sowing the grain, the nitrate of soda being given in the spring of 

 the year as a top dressing. The average of the 50 fields gave the 

 following results : — 



