20 
BULLETIN 219, U. S. DEPARTMENT OF AGRICULTURE. 
Neither the average grain crop nor the average stover crop alone 
by any method under trial has been sufficient to pay the cost of 
producing it. When both are considered together, the crop shows 
for all methods variations ranging from a loss of $1.20 on summer- 
tilled land to a profit of $2.40 on listed corn ground. Both spring 
and fall plowing after corn show profits of more than a dollar an 
acre. Fall and spring plowing following small grains and subsoiling 
following corn all show losses of less than a dollar per acre. In gen- 
eral terms, the corn crop at this place has just about paid the expense 
of its production, including something for the use of the land. The 
greatest crop assurance has been by summer tillage, but the cost of 
the method has resulted in a small loss from its use. 
SCOTTSBLUFF FIELD STATION. 
Some of the results of the work for three years with corn at Scotts- 
bluff, Nebr., are presented in Table XI. The production of both 
grain and fodder was good each year. The value of the grain crop 
alone was sufficient to realize a profit by all methods under trial. 
Table XI. — Yields and cost of production of com by different methods at the Scottsbluf 
Field Station, in 1912, 1913, and 1914. 
Fall plowed. 
Spring plowed. 
Yields, values, etc. (av- 
erage per acre). 
After 
com 
(lplat). 
After 
small 
grain 
(9 plats). 
After 
com 
(1 plat). 
After 
small 
grain 
(20 plats). 
after 
corn 
(1 plat). 
after 
corn 
(1 plat). 
Summer 
tilled 
(1 plat). 
O 
o 
| 
.S 
03 
o 
> 
o 
02 
.3* 
o 
g 
p 
02 
CD 
5 
02 
.9 
o 
O 
02 
B 
o 
1 
02 
o 
s 
02 
Yields: 
1912 
Bu. 
38.0 
32.2 
20.1 
Lbs. 
2,400 
1,660 
1,200 
Bu. 
36.2 
Lbs. 
4 406 
Bu. 
40.8 
27.8 
15.0 
Lbs. 
3,300 
1,740 
700 
Bu. 
40.7 
31.4 
7.5 
Lbs. 
4,770 
2,550 
1,020 
Bu. 
40.0 
26.1 
14.2 
Lbs. 
4,300 
1, 700 
840 
Bu. 
21.6 
38.6 
14.6 
Lbs. 
2,900 
1,700 
620 
Bu. 
49.7 
Lbs. 
5.600 
1913. 
26. 4 2, 148 
11.0 994 
35.6 2,600 
1914 
31.71,400 
30.1 
1,753 
24.5|2,516 
27.9 
1,913 
27.5 
9. 770 
26.8 
2,280 
24.9 
1,740 
39.0 3,200 
812. 04 
S3. 51 $9. SO s.5. 03 
S11.16 
S3. 83 
S11.00JS5.54 
$10. 72 
84. 56 
S9.96 
83.48 
S15.60'S6.40 
$15.55 
7.49 
$14.83 
7.49 
$14. 99 
7.11 
S16.54 
7.11 
$15. 28 
8.18 
S13.44 
5.98 
S22. 00 
Cost 
12.36 
Profit . 
8 06 
7.34 
7.88 
9.43 
7.10 
7.46 
9.64 
The only method of preparation that in any year produced a yield 
of either grain or stover greater than that from summer-tilled land 
was that of hsting corn ground in 1913. Methods other than summer 
tillage do not exhibit sufficient consistent differences in yield to 
warrant very definite conclusions as to their comparative merits. 
The lack of consistency is shown in the comparative yields of both 
grain and stover. Some of the methods producing the best yields of 
grain have been among the lowest in yield of stover and vice versa. 
