14 
BULLETIN 219, U. S. DEPARTMENT OF AGRICULTURE. 
A careful study of the yields in Table V shows that the seasonal 
influence is much greater than the influence of tillage. This is brought 
out by the wide variation in average yields in different years and the 
much smaller variation in the yields^ from different methods within 
the same year. 
Good or heavy average yields of fodder are shown by all methods, 
but little consistent advantage of one method over another. The 
lack of consistent differences in yield by various methods of tillage 
indicates that this soil offers little response to any particular method 
of seed-bed preparation for corn. This lack of response is doubtless 
due to the shallowness of the soil, and has been found true thus far for 
the spring-sown small grains, as well as for corn. Perhaps the chief 
thing to be noted in the yields is that corn has averaged somewhat 
better after corn than after small grain. Summer tillage has been 
productive of yields intermediate between the two. 
Table V. — Yields and cost of production of corn by different methods at the Judith Basin 
Field Station, 1909 to 1914, inclusive. 
Fall plowed. 
Spring plowed. 
Sub- 
soiled, 
after 
corn 
(1 
plat). 
Listed, 
after 
corn 
(1 
plat). 
Sum- 
mer 
tilled 
(1 
plat). 
Yields, values, etc. (average per acre). 
After 
corn 
(1 
plat). 
After 
small 
grain 
(9 
plats). 
After 
corn 
(1 
plat). 
After 
small 
grain 
(16 
plats). 
Yields of stover: 
1909 pounds. . 
1910 do.... 
1911 do.... 
1912 
11,120 
2,900 
7,000 
( l ) 
4,000 
3,700 
10,011 
2,385 
6,174 
C 1 ) 
3,683 
4,122 
10, 100 
2,760 
7,250 
C 1 ) 
5,000 
4,900 
8,603 
2,626 
5,895 
(*) 
4,227 
4,500 
11,420 
3,650 
4,780 
0) 
5,800 
5,000 
11,700 
3,260 
6,700 
0) 
4,450 
3,800 
11,530 
3,300 
3,850 
(i) 
1913 pounds. . 
1914 do.... 
6,100 
3,500 
5,744 
5,275 
6,002 
5,193 
6,130 
5,982 
5,656 
$11.49 
7.49 
§10. 55 
7.49 
S12. 00 
7.11 
$10. 39 
7.11 
S12.26 
8.18 
SI 1.96 
5.98 
S11.31 
Cost 
12.36 
4.00 
3.06 
4.89 
3.28 1 4.08 
5.98 
-1.05 
1 The crop in 1912 was partially destroyed by hail. Some corn was produced, but the lack of uni- 
formity in the yields makes it inadvisable to use the results in this table. 
All methods except summer tillage have been productive of profit- 
able crops. The greatest profit, $5.98 per acre, has been by the least 
expensive method — listing. The next largest profit, $4.89 per acre, 
has been by spring plowing after corn. Excluding summer tillage, 
the small difference in the net results by different methods indicates 
that the problem is one of utilization of the feed rather than of the 
method of its production. 
HUNTLEY FIELD STATION. 
The results of two years at Huntley, Mont., are shown in Table VI. 
In both years good crops of grain were produced. With the excep- 
tion of subsoiling, the relative performance of different methods is 
