60 



DETAILS OF PLOUGHING COSTS. 

 Cost of Ploughing One Acre of Land. 



Approximate Paraffin and Oil Consumption for Ploughing 



3 Furrows. 



The farm manager supplies the following notes on the tractors 

 during the season 1921-22. 



* Calculated at average rates for Austin 1 gal. per wk., Titan 1 gal. per day. 



The consumption of paraffin per hour seems to be the most 

 constant factor for purposes of calculating. The difference in 

 the cost of various operations is brought about mainly by the width 

 of the implement used and the speed maintained. 



The number of hours exclusive of threshing = 870 or about 109 

 working days, equivalent to 6,090 horse hours, 2f horses per 

 annum. 



While a horse may put in 280 days' work, a good deal of this 

 is of a maintenance type and not strictly seasonal. The tractor 

 hours probably represent the time put into the important work of 

 the farm by 3-1 horses. 



Types of work done : — 

 Ploughing 

 Sub-soiling. 

 Cultivating. 

 Drag + harrow. 

 Overhauling at end of season :- 



Parts. . .£3 11 8 (supplied free). 

 Labour . £11 



Roller + harrow. 

 Roller only. 

 Cutting and bindinj..j. 

 Threshing. 



