H 
Colorado Experiment Station. 
Table No. io gives the man and horse hour costs for harrow¬ 
ing in preparation for seeding. Table No. io also indicates the 
man and horse hours for harrowing required for the production of 
a ton of alfalfa hay. Most of the harrowing applied is applied in 
preparation of the seed bed, but occasionally the crop has been har¬ 
rowed in fighting insects, killing out weeds or reducing the crust 
which may have formed on the surface of the alfalfa field. 
TABLE No. 10. 
MAN AND HORSE LABOR COST FOR HARROWING ALFALFA. 
Year 
Acres 
MAN I 
IOURS 
HORSE 
HOURS 
Average 
Yield 
in Tons 
HOURS PER TON 
Total 
Per Acre 
Total 
Per Acre 
Man 
Horse 
1910 
29.07 
27.00 
0.93 
43 
1.5 
1.99 
1.46 
0.08 
1911 
95.40 
86.50 
0.91 
177 
1.86 
2.92 
0.31 
0.62 
1912 
50.18 
28.00 
0.56 
67 
1.34 
3.12 
0.18 
0.43 
1913 
28.04 
49.50 
1.77 
133.5 
4.76 
3.30 
0.54 
1.44 
Totals . . 
202.69 
191.00 
421.5 
Ay. 4 yrs. 
0.94 
2.07 
0.32 
0.72 
Table No. n shows the cost of man and horse labor for level¬ 
ing in preparation for alfalfa seeding. 
TABLE No. 11. 
MAN AND HORSE LABOR COST FOR LEVELING ALFALFA. 
Year 
Acres 
. 
MAN 1 
IOURS 
HORSE 
HOURS 
Average 
Yield 
in Tons 
HOURS 1 
PER TON 
Total 
Per Acre 
Total 
Per Acre 
Man 
Horse 
1912 
20.17 
20 
1.00 
49 
1.90 
3.12 
0.30 
0.61 
1913 
28.04 
40 
1.40 
104 
3.80 
3.30 
0.42 
1.15 
Totals ... 
48.21 
60 
153 
Av. 2 yrs. 
1.24 
3.17 
0.31 
0.98 
Table No. 12 indicates the man and horse labor cost for disk¬ 
ing the alfalfa. Only one year recorded a charge for this item. 
TABLE No. 12. 
MAN AND HORSE LABOR COST FOR DISKING ALFALFA. 
Year 
Acres 
MAN HOURS 
HORSE 
HOURS 
Average 
Yield 
in Tons 
HOURS PER TON 
Total Per Acre 
Total 
Per Acre 
Man 
Horse 
1913 
I i 
18.541 27.0 | 1.4 
1 1 
108 
5.8 
1 
3.301 0.42 
1 
1.76 
Av. 1 yr. | | | 1.4 | | 5.8 | | 0.42| 1.76 
