COEN IN THE GREAT PLAINS AREA. 
DICKINSON FIELD STATION. 
17 
Table VIII shows the results of a study of the production of corn 
at Dickinson, N. Dak., for six years, exclusive of 1912, when the crop 
was destroyed by hail. Four of these years were productive of 
grain, but in the other two years fodder only was produced. 
Table VIII. — Yields and cost of production of corn by different methods at the Dickinson 
Field Station, 1908 to 1914, inclusive. 
Fall plowed. 
Spring plowed. 
Yields, values, etc. 
(average per aero). 
After corn 
(1 plat). 
After small 
grain (4 plats). 
After corn 
(1 plat). 
After small 
grain (16 plats). 
(1 plat). 
Grain. 
Stover. 
Grain. 
Stover. 
Grain. 
Stover. 
Grain. 
Stover. 
Grain. 
Stover. 
Yields: 
1908 
Bush. 
Lbs. 
1,660 
2,000 
2,220 
4,500 
C 1 ) 
1,050 
1,200 
Bush. 
'"49." 5" 
22.8 
33.1 
18.2 
Lbs. 
2,247 
2,005 
1,790 
3,225 
2,100 
1,495 
Bush. 
"""58.T 
26.2 
.... ... 
28.2 
15.9 
Lbs. 
2,000 
2,280 
2,280 
4,300 
C 1 ) 
2,110 
1,200 
Bush. 
'"49." 7* 
22.2 
"'•(V)'" 
26.3 
20.6 
Lbs. 
2,787 
2,156 
1,948 
4,195 
C 1 ) 
1,575 
1,788 
Bush. 
"'45.' 2" 
8.4 
"••(V)""" 
26.3 
7.3 
Lbs. 
1,070 
1909 
52.4 
26.1 
1,710 
1910 
1,220 
1911 
4,800 
1912 
( l ) 
27.9 
12.7 
(i) 
1913 
1,230 
1914 
900 
Average 
19.9 
2,105 
20.6 
2,144 
21.5 
2,362 
19.8 
2,408 
14.5 
1,822 
Value 
$7. 96 
S4. 21 
$8.24 
$4. 29 
$8.60 
$4. 72 
$7.92 
$4.82 
$5.80 
$3.64 
812. 17 
7.49 
$12. 53 
7.49 
$13.32 
7.11 
$12. 74 
7.11 
$9.44 
Cost 
12.36 
Profit or loss . . 
4 
.68 
5 
.04 
6 
.21 
5.63 
-2.92 
1 Destroyed by hail. 
The point most emphasized in a comparison of the yields by differ- 
ent methods is the decreased production attending the growth of 
corn on summer-tilled land. The only year when yields by summer 
tillage have compared favorably with those by other methods was in 
1911. This was the driest year in the series shown. Corn has not 
generally suffered from a lack of water at this station. No signifi- 
cance attaches to the small differences to be noted between the 
yields of corn following corn and of corn following small grains. 
By all methods except summer tillage the grain crop alone has been 
sufficient to afford a small profit. On summer- tilled land the crop 
has been grown at an average loss of $2.92 when the value of both 
grain and stover is considered. In the average of the six years under 
study, spring plowing has given somewhat better returns than fall 
plowing. The difference is not great enough, however, to be of much 
practical importance. 
EDGELEY FIELD STATION. 
The results of eight years at Edgeley, N. Dak., are presented in 
Table IX. In three of these years mature grain has been produced . 
In two other years there were prospects for a good crop of grain, but 
