Colorado Agricultural College Farm Costs. 
3 1 
Harrowing cost, on an average, 1.57 hours of man labor and 
3.79 hours of horse labor; at the standard charge, a money cost of 
79 cents per acre. 
TABLE No. 53. 
LABOR COST PER ACRE—HARROWING. 
Average 1910-1913, inclusive. 
Average Man Hours 
Average Horse Hours 
Average Cost 
Horse and Man Labor 
1.57 
3.79 
$0.79 
Leveling for irrigation, which consists almost entirely of run¬ 
ning a long plank leveler, gave the costs tabulated in Table No. 54. 
At the standard charge, these would have a money value of 51 
cents per acre. 
TABLE No. 54. 
LABOR COST PER ACRE—LEVELING. 
Average 1910-1913, inclusive. 
Average Cost 
Average Man Hours 
Average Horse Hours 
Horse and Man Labor 
1.11 
2.40 
$0.51 
Rolling was not performed every year. Table No. 55 shows 
that when rolling was performed that it was done at an average 
money cost of 49 cents per acre. 
TABLE No. 55. 
AVERAGE LABOR COST PER ACRE—ROLLING. 
* 
Two years only. 
• 
Average 
Man Hours 
Average Horse Hours 
Average Cost 
Horse and Man Labor 
0.74 
2.72 * 
$0.49 
Disking cost on an average, 79 cents per acre. 
TABLE No. 56. 
LABOR COST PER ACRE—DISKING. 
Average of three years. 
Average Man Hours 
Average Horse Hours 
Average Cost 
Horse and Man Labor 
1.15 
4.47 
$0.79 
