94 SCIENCE AND FRUIT GROWING 



was increased year by year, so that in 1908 the whole area 

 occupied by the trees (100 square feet for each) was manured. 



The general results obtained during the next six years, and, as 

 regards the fruit statistics, during the next eleven years, were 



Less than Noymal More than 



normal manure normal 

 manure, manure. 



Leaf-size, Growth, Weight of fruit, \ g() IQQ j6 



Size of fruits, Value of crops / 



showing that in this poor soil, in contradistinction to the results 

 obtained at Ridgmont, manures have their anticipated effect, 

 and have an effect even greater than that which they have on 

 farm crops in the Ridgmont soil. The effect, too, increased on 

 the whole when the dressing was increased, and it was much 

 greater to the average extent of 63 per cent.' with dung than 

 with artificials, as would be but natural in a light, sandy soil. 



No Dose of artificials. Dose of Dung, 



manure. Single. 1 Double. Treble. Single 1 Double. Treble. 



Growth of crops 100 140 136 165 166 224 240 



147 210 



These results were further emphasised by others obtained from 

 mixed plantations of apples, pears, plums, cherries and bush 

 fruits, in the same soil, the average values during five years being 



No manure. Artificials. Dung. 

 Leaf-size, Growth, Weight of fruit 78 100 141 



It was clear, therefore, that, as such results were obtained 

 at Millbrook, the absence of results at Ridgmont could not be 

 attributed to any fault in the experiments themselves. 



Some of the plots at Millbrook, as in the case of those at Ridg- 

 mont, were designed to show the effect of the omission of one or 

 other of the constituents of the artificials applied, and in this case, 

 where manures operated, it was possible to draw conclusions from 

 the results. These were 



No Potash Phosphate Nitrogen Complete 

 manure, omitted, omitted. omitted, manure. 



Growth Weight ofj 6 loo 



crops, Size oHruitsJ 



1 A single dose was twelve tons of dung to the acre, or its equivalent of 

 artificials. 



