90 SCIENCE AND FRUIT GROWING 



which were manured, flourished. But the manure which was 

 essential in these cases was a bulky organic manure, such as 

 dung, since artificial manures produced but little more effect 

 than no manure at all. 



RESULTS WITH APPLES AT RIDGMONT (Reports, I, no ; II, 193 ; 

 IV, 53 > V,53i XVI, 6) 



Coming to particulars, the main group of trees to which the 

 experiments related consisted of twenty-one plots of eighteen 

 trees, six of Bramley's Seedling, six of Cox's Orange Pippin, and 

 six of Potts' Seedling in each, all on the paradise stock ; there 

 were also some similar plots of Bramley, Cox and Lane's Prince 

 Albert, grown as standards on the crab stock in another part of 

 the farm, as well as some dwarf trees of Gascoyne's Scarlet 

 Seedling, which had been planted in 1910 in the place of the 

 trees of Cox, which had by that time been removed, as also had 

 been the Potts, and some of the Bramleys. 



Of the twenty-two years over which the results had extended 

 when a summary was made of them, the first (1895) was a blank 

 year, for the manures were not applied till twelve months after 

 the trees had been planted, and the last year (1916) was also a 

 blank, owing to the absence of fruit. 



The results from various plots have been grouped into three 

 classes, according as the annual dressing of manure received was 

 normal, less than normal, or more than normal. The normal 

 amount was either 12 tons per acre of stable manure, or its 

 equivalent of a mixed artificial manure (see p. 86). There were 

 eleven of these normally treated plots, interspersed with five or 

 six plots receiving less than the normal amount of manure in 

 some cases none at all, and in others a dressing which was incom- 

 plete owing to the omission of one of the constituents and with 

 five or six plots receiving more than the normal amount, the 

 excess going up to ten times the normal quantity in case of arti- 

 ficial, and to 30 tons of dung in the case of the dunged plots. 

 As a result of the changes in the number of trees in the plots, 

 the various groups under different manurial treatment contained 

 from 246 to 120 trees during the earlier years, and from 93 to 47 

 in later years, the records for these later years applying chiefly 

 to Bramley, and depending mainly on the crops borne. 



The various features examined were seven in number, of which, 

 however, one of them the value of the fruit is not an inde- 

 pendent feature, being deduced from the weight of the crops 



