102 



Food for resulted in a comparatively large yield, leaving the soil 



! _! much poorer in Nitrogen for the next crop. 



It would appear from this reasoning, that the need 

 for applied Nitrogen, while greater for the upland in 

 1905 than in 1906, is not so striking as in the lowland. 

 This assumption is borne out by the facts; the gain on 

 the upland in 1905 is 3,040 pounds, or 95 per cent., 

 as against a gain of 5,160 pounds, or 162 per cent, in 

 1906; while the gain on the lowland is 36.4 per cent, in 

 1906, as against 24.7 per cent, in 1905. The lower 



Hay Weeds 

 Unfertilized 



Hay Weeds Hay Weeds? 



Nitrate of Soda Sulphate of Ammonia 



Hay Weeds 

 Dried Blood 



Hay Weeds 

 Limed 



percentage increase in yield from Nitrate on the upland 

 being due in part, at least, to the fact that the Nitrate 

 used in 1905 energized the plants to acquire more from 

 soil sources than was possible with the use of minerals 

 only, and in part to the lower quantity, applied in 1906, 

 168 pounds instead of 200 pounds. 



On the lowland the greater percentage increase this 

 year, due to Nitrate, is for the same reason that it was 

 greater in 1905 on the upland than in 1906. This is a 

 clear demonstration again of the influence of character 



