48 
BULLETIN 1348, U. S. DEPARTMENT OF AGRICULTURE 
ADVANTAGES — Continued 
Motor trucks: 
Great range of speed available. 
Great time saver on good roads. 
Requires no attention when not in 
use. 
Quickly available when needed. 
DISADVANTAGES — Continued 
wet, loose 
on 
Motor trucks : 
Poor traction 
ground. 
Use limited largely to transporta- 
tion. 
Frequently not economical on 
short hauls. 
ROW CROPS 
Pep Cent 
D 20 40 60 80 
NGN -ROW CROPS 
Per Cent 
20 40 60 80 
HAY CROPS 
Per Cent 
20 40 60 80 iOO 
United States 
f\lew Hampshire 
■ 
—J 
1 
^ 
= 
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1""" 
Maine 
Massachusetts. 
Connecticut 
/?/7 ode Island 
1 
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■ 
^^ 
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r 
HZ 
New York 
■■■r 
^■■■1 
■■■ 
Michigan 
Wisconsin 
Minnesota. 
Pennsylvania. ._ 
West Virginia.... 
New Jersey. 
^" 
. 
1 ... 
^BHHi 
^^7 
1 
■■nui 
^ 
^^ 
"^^^ 
^■^ 
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^■™ ^^ 
■■■ ■■ 
Ohio 
^■^^ 
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Missouri. 
Illinois. 
Iowa 
— ^ 
^^ * 
— 
^^^r ^\ 
i 
Maryland 
y/rginia 
Delaware. 
Kentucky. 
Tennessee 
H^^^^^M 
n 
^^^^^^^ 
1 
■ 
1 1 
1 1 
— 
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1 
North Carolina... 
• 
■ 
■ 
1 
South Carolina.. 
Georgia 
/^lorida 
Alabama 
Mississippi. 
Louisiana. 
Texas 
Arkansas 
Oklahoma 
1 ! 1 
; 
" '! 
/(ansas 
Nebraska 
South Dakota. _ 
^■^" 
^ 
^^ 
'^■T' 
I 
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North Dakota 
i^m ' 
^H 
Montana. _ 
" i 
■na 
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Idaho 
Washington 
Oregon 
Wyoming 
Nevada 
Utah 
Colorado 
New Mexico 
Arizona 
California 
_ 
1 
1 
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CL 
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Fig. 51. 
-Percentage of crop area occupied by the three principal groups in 1922. 
Crop Report of U. S. Department of Agriculture 
Based on 1922. 
Since approximately 50 per cent of the power utilized on farms is 
applied to field work, and since different field crops require different 
methods of power application, it is important that the type of farm- 
ing followed be given particular attention in considering the choice 
of the kind of power to he used. For this purpose farm crops may 
