EXPERIMENTS WITH A VIEW TO CONTROLLING THE DISEASE. 



91 



After the fruit is picked there is do cult ival ion until the spring, in order to allow the weeds 

 to grow freely for ploughing in. As soon as it is ploughed, it is worked up with the disc cultivator, 

 and this is continued until the end of the year, about half-a-dozen discings being given. The Spring 

 Tooth Cultivator is generally used after that, and the ordinary harrows after a shower. If the 

 weather is particularly dry in January, the harrows may be used to keep the moisture in. Tin- 

 average rainfall is about 35 inches. Since there is no codlin moth in this orchard, there is no 

 spraying with arsenate of lead. 



Detailed results are not available for the past season, which showed much less Bitter Pit than 

 usual. The apples, when gathered from the whole experimental area, including the guard trees, 

 gave an average of exactly 5 per cent. When the manures already applied have had time to act, 

 no doubt there will be a difference in the plots, arid the results will be carefully recorded. 



There were nine manurial plots, consisting of eight trees each, and with guard trees between. 

 The kinds and quantities of manure applied were as follows : — 



Manorial Experiments. 



riots. 



L3 

 I I 

 L5 

 L6 

 17 



18 



19 



20 

 21 



22 



Kinds and Quantities of Manure pel Acre. — Elghl Tiers in each Plot. 



Check 



1 cwt. sulphate of ammonia 

 3 cwt. ordinary superphosphate 

 1 cwt. sulphate of potash 



Cheek 



1 cwt. sulphate of ammonia 



1 cwt. bonedust 



2 cwt. ordinary superphosphate 

 1 cwt. sulphate of potash 



Check 



1 cwt. sulphate of ammonia 



3 cwt. ordinary superphosphate 



4 cwt. kainit 



Check 



3 cwt. ordinary superphosphate 

 1 cwt. sulphate of potash 



Ureen manuring, witli leguminous crop every alternate vear 

 Cheek 



Green manuring alone every alternate year 

 Cheek 



Green manuring every alternate year, plus 5 cwt. slacked lime 

 Cheek 



3 cwt. ordinary superphosphate 

 I cwt. sulphate of potasli 



Check 



l cwt. sulphate of ammonia 

 3 cwt. ordinary superphosphate 



Check 



6 lbs. bonedust (per tree) . . I 



1 lb. sulphate of potash (per tree) [-Plot 9 



\ lb. sulphate of iron (per tr^e) J 



Per 



Tree, 

 lb. 



Plot L 



i 



2* 



i 



lbs.. Plot 2 



lb. 



61 lbs., Wot 3 



31 lbs M Plot 1 



1 »> 



is. 



lot 



21 



M lbs., Plot K 



