1\ A. VAN DEll BlJL 285 



C. Field Experiments. 



Mr B. A. Bell of Krantzkloof, Natal Province, very kindly assisted 

 in allowing field experiments to be carried out at his place. This place 

 particularly suited our purpose as the soil was very badly infected 

 since diseased plants had inadvertently been dug in. 



The experimental plots were situated on a gentle slope, facing 

 north. Each plot was about 70 x 40 ft. The soil was a sandy loam. 



The area placed at our disposal was divided into six plots and these 

 plots treated as follows: 



Plot A. Crushed quicklime at the rate of two tons to the acre. 

 The quicklime was applied as a surface dressing on the 21st September; 

 raked in on the 1st October and again raked over on the 7th October. 



Plot B. Control. 



Plot C. Crushed quicklime at the rate of 3 tons to the acre. 

 Applied and treated as for plot A. 



Plot D. Crushed quicklime at the rate of 5 tons to the acre. 

 Applied and treated as for plot A. 



Plot E. Control. 



Plot F. One per cent, formalin applied at the rate of 2000 gallons 

 to the acre. The soil was watered with the formalin solution on the 

 29th September and raked over on the 1st and 7th October. 



The planting of carnations was commenced on the 15th October 

 and continued on the 16th, 17th, 21st, 22nd and 23rd. The weather 

 remained good; cloudy and showery but not enough to stop work; 

 the ground being kept just moist enough. 



In planting each plot was divided into six sections and planted 

 as under: 



Section Distinguishing feature No. of rows 



1 Pink tree, raised by Mr Bell 4 



2 Pink tree 1 , obtained by Mr Bell from a friend 5 



3 Named varieties 2 , own raising ... ... 3 



4 Common red 3 (little value) ... ... ... 3 



5 Pink tree, obtained from another friend ... 7 



6 Pink tree mixed witli common red and named 



varieties 



Plots A and B 10 



Plots C and D 12 



Plots E and F 11 



1 An unhapf>y lot of plants from the beginning. 



2 The varieties were: Georgia, My Maryland, Andrew Carnegie, Mrs Henry Lawson, 

 Regina, Lady Bountiful, La Mode, Verita. 



3 Very promising plants. 



