DRY FARMING IX SOUTHEASTERN WYOMING 
bushels per acre. Green manures do not rank as high as preparation 
for oats as they do for wheat, but the relative positions of peas and 
rye as green manures are the same. The average yield of two plats 
following peas plowed under was 18.4 bushels, and the average yield 
of two plats following rye plowed under was 3.2 bushels less. The 
. . '. 
afiitfttlfi 
Fig. 5.— Oats on disked corn ground at the Archer Field Station in 1923; yield, 26.6 bushels per 
acre. Compare with Figure 9 
average yield of five plats on fallow was 18 bushels per acre, about 
the same as that following peas as green manure. One plat on spring 
plowing following wheat in a 3-year rotation in which the other crop 
was corn averaged 18.2 bushels per acre. 
Table 4. — Yields of oats grown by different methods at the Archer Field Station, 
from 1914 to 1923, inclusive 
Yields per acre (bushels) 
Treatment and previous 
crop 
Plats 
aver- 
aged 
1914 
1915 
1916 
1917 
1918 
1919 
1920 
1921 
1922 
1923 
Aver- 
age, 
1914 
to 
1923 
Fall plowed: 
Oats 
Spring wheat 
1 
4 
1 
1 
14.5 
10.6 
10.1 
35.9 
41.4 
37.5 
3.8 
3.8 
3.0 
23.4 
29.1 
31.4 
25.3 
18.1 
31.1 
34.8 
35.6 

. 7 

.6 
2.8 
14.9 
12.2 
2.2 
3.8 
7.5 
9.1 

.9 
.9 
.6 
2.8 
15.5 
16.3 
20.0 
10.4 
15.2 
15.4 
Corn- 
_ . 
Total or average _. 
7 
11.2 
39.8 
3.7 
28.0 
30.4 
.5 
12.4 
4.8 
. 7 
14.4 
14.6 
Spring plowed: 
Oats._ 
1 
1 
1 
2 3 
15.0 
23.4 
"23.T 
33.8 
44.1 
42.5 
46.0 
3.9 
2.8 
7.7 
5.8 
25.8 
34.5 
21.4 
27.4 
25.6 
27.7 
36.6 
46.9 
.2 
1.6 
.7 
2.3 
3.8 
16.9 
5.9 
14.3 
2.8 
16.6 
13.1 
15.5 

1.3 
.9 
1.6 
8.1 
13.4 
15.6 
19.2 
11.9 
Spring wheat 
18.2 
Flax 
116.0 
Corn 
20.3 
Total or average 
—L 
i 
9 
21.4 
~9TT 
13.0 
18.9 
42.5 
32.8 
41.5 
5.2 
"TTT 
2.0 
9.3 
27.3 
"2270" 
22.7 
31.9 
38.4 
IT 
12.8 
39.0 
1.6 
~~0 
.2 
1.9 
11.0 
"XT 
3.4 
18.7 
13.2 
~ 27T 
4.7 
18.1 
1.2 
15.8 
17.8 
Subsoiled: Oats 
Listed: Oats 
Disked: Corn. 


3.2 
3.4 
3.1 
20.5 
9.3 
9.5 
20.3 
Sod breaking: 
Alfalfa 
Bromegrass 
1 
1 
11.9 
10.5 
41.6 
42.2 
1.9 
2.5 
27.3 
23.3 
18.4 
24.7 
.9 
1.1 
12.8 
10.0 
15.0 
.2 
.3 
.9 
4.7 
8.8 
6.8 
13.5 
12.4 
Total or average 
2 
11.2 
41.9 
2.2 
25.3 
21.6 
1.0 
11.4 
7.6 
.6 
13.0 
Green manured: 
2 
2 
11.0 
19.8 
34.5 
38.6 
6.3 
12.2 
31.3 
29.6 
18.1 
38.9 
!6 
15. 5 
16.1 
20.1 
13.9 
L3 
14.1 
13.0 
15.2 
With peas 
18.4 
Total or average 
4_ 
5 
15.4 
36.6 
9.2 
30.4 
28.5 
.6 
15.8 
17.0 
TXT 
1.0 
"279" 
13.5 
16.8 
Fallowed- 
20.0 
36.8 
6.7 
28.5 
34.1 
2.1 
12.0 
22.7 
18.0 
Average of all 35 3 plats 
16.5 
39.6 
6.5 
28.8 
32.8 
1.3 
13.6 | 
12.4 
1.7 
16.2 
16.9 
9-year average. 
Only 2 plats on spring-pl 
12091— 24f 
owed corn in 1914, 1915, 1916, and 1920. 
-2 
3 Number not complete until 1917. 
