334 The Wohiirn Pot-C^dhtre E.vperiyneiits, 1910-11-12. 



and ripened off first, but vigorous growth continued with the 

 more heavily limed lots to a later period. The relative demands 

 for water were much as in 1910, the requirements being more 

 as more lime Avas present. 



The following table gives the collected harvest results for 

 the 3 years 1909, 1910 and 1911 :— 



' Crop injured by birds. 



Considering these results, it will be noticed in the first 

 place that in 1909 — the first year — while there was an all- 

 round increase in straw, that in grain was only marked in one 

 case, there being a diminution generally where lime was added. 

 This may have arisen from the alkalinity imparted to the soil 

 by the addition of caustic lime, for, on taking the results of 

 1910, by which time the lime had become thoroughly carbon- 

 ated and had had time to come into action, it will be seen that 

 there was a steady increase throughout, both corn and straw 

 going up as the amount of lime was increased. The same 

 increase, though not of so regular a character as in 1910, was 

 shown in 1911, the limed crops being, one and all, well above 

 the untreated ones. The irregularity in set o, in 1910, was 

 caused by a bird managing to get inside the wire enclosure 

 and picking off two of the ears of this set. For the marked 

 decrease in set 6, in 1911, there was no clear explanation, 

 though it has to be remembered that this had produced the 

 heaviest crop in 1910. Taking the average of the three years 

 we have the following as the relative produce : — 



