CEREALS ON THE BELLE FOTTRCHE EXPERIMENT FARM. 
49 
stem rust. The wheat did not fully emerge in the fall of 1917. 
The 1917 crop was sown on beet land which had previously produced 
alfalfa. The wheat was partly destroyed by an accidental flooding 
late in the fall. Although the stands were thin the yields were 
fairly high in 1917. 
The annual and average yields are shown in Table XXXV. 
Fig. 15. — Constructing an irrigation ditch on the Belle Fourche Experiment Farm. The 
corn ground is irrigated before sowing it to winter wheat. 
Table XXXV. — Yields of varieties of winter wheat grown on irrigated land 
on the Belle Fourche Experiment Farm, 1915 to 1918, inclusive. 
Group and variety. 
C.I. No. 
Yields per acre (bushels). 
1915 
1916 
1917 1918 
Average. 
Crimean: 
1667 
1583 
4207 
3055 
3055-159 
1438 
5297 
5298 
1437-394 
a 52.1 
66.3 
61.3 
8.7 
11.3 
30.7 
29.5 
24.0 
23.4 
28.9 
Kharkof 
32.6 
Do 
8.7 
11.5 
8.8 
5.2 
26.7 
31.0 
19.9 
28.5 
24.3 
26.5 
Turkey selection 
66.6 
33.9 
Alton: 
Alton ( Ghirka Winter) 
59.1 
57.5 
51.9 
26.5 
29.8 
Do 
Do 
| 
a One plat only. 
In Table XXXY it will be observed that the Turkey selection, 
No. 3055-159, produced the highest yield each year. This strain 
