﻿NORMAL DAY S WORK FOR VARIOUS FARM OPERATIONS. 



13 



Table IV. — A normal day's luork with a gang plow, giving the daily acreages reported at 

 6-inch depths for each width, adjustments for these widths, and a scale of allowances for 

 other depths. 



[Net hours in the field, 9.65.J 



Team and width. 



Plowed 

 per day. 



Number 

 averaged. 



Adjusted 

 acreage. 



Allow- 

 ance per 

 inch for 

 other 



depths. 



Prac- 

 ticable 

 depths. 



Four-horse teams: 



Acres. 

 4.23 

 4.72 



5.00 

 5.14 



4.50 

 5.05 



71 

 73 



8 

 69 



4 

 31 



4.00 

 4.25 



4.50 

 4.80 



4.75 

 5.25 



Acres. 

 0.12 

 .15 



.10- 



.12 





 .10 



Inches. 

 3 to 8 





3 to 7 



Five-horse teams: 



3 to 9 





3 to 8 



Six-horse teams: 



3 to 10 





3 to 10 







Limited data on plowing with traction engines have been assembled 

 in .Table V by the rated horsepower of the engines used. In the 

 last column of the table the adjusted factors have been included, 

 these being based on the average efficiency of the total number 

 reporting, then weighted according to the rated horsepower opposite 

 each, respectively, in the first column, and finally reduced 10 per 

 cent. With this type of equipment the total day in the field is from 

 1 to 1^ hours longer than with horse-drawn plows, while the time 

 actually in motion with engines is nearly as long as the entire day 

 in the field with horses. The depths at which the traction outfits 

 work is considerably less than the practice with the ordinary plows 

 in the humid sections. On sod, the width of cut is less and the depth 

 plowed is about two-thirds of that on stubble. From 20 to 25 per 

 cent greater areas can be plowed daily with the same equipment on 

 stubble than can be turned in sod. From average compilations it 

 appears that the daily efficiency of tractors in plowing is about 

 0.90 acre on stubble and 0.70 acre on sod for each unit of rated 

 power, while the load for each unit of power is 31 square inches 

 in cross section on stubble and 20 inches in breaking sod. 



Table V. — A normal day's work in plowing stubble and sod with traction engine, giving 

 the average acreage reported, according to the horsepower of tractor. 



PLOWING STUBBLE. 

 [Net hours in the field, 10.97; net hours in motion, 9.25.] 



Horsepower of engine. 



Width 

 of cut. 



Depth. 



Reported 

 acreage. 



Number 

 averaged. 



Adjusted 

 acreage. 



15 



Feet. 

 7.4 

 7.9 

 9.7 

 11.3 

 11.5 

 14.6 

 15.3 

 10.0 

 12.3 



Inches. 

 5.9 

 6.2 

 5.8 

 6.0 

 6.2 

 6.3 

 5.6 

 5.9 

 7.0 



15.4 

 18.4 

 21.0 

 22.6 

 24.7 

 32.5 

 33.3 

 22.0 

 27.2 



5 

 20 

 14 

 54 

 33 

 26 

 11 

 13 

 12 



12 



20 



16 



22 



IS 



25 



20 



30 



24 



32 



26 



40 



32 



45 



36 



60 



42 







