CEREALS OX THE BELLE FOURCHE EXPERIMENT FARM. 
61 
Table XLIV. — Comparison of the yields of two varieties of winter rye and 
of Kharkof winter wheat on irrigated land on the Belle Fourche Experiment 
Farm, 1915 to 1918, inclusive. 
[Yields of wheat computed at 60 pounds per bushel, rye at 56 pounds per bushel.] 
Crop and variety. 
C.LNo. 
Yields per acre (bushels). 
1915 
1916 
1917 
1918 
Average. 
Rye: 
Swedish (Minn. No. 2) 
N. Dak. No. 959 
137 
175 
1583 
44.6 
a 38. 8 
66.3 
10. S 
11.7 
11.3 
21.3 
25.4 
29.5 
17.5 
14.8 
23.4 
23.6 
99 7 
Winter wheat : 
Kharkof 
32.6 
a One plat only. 
BUCKWHEAT. 
Buckwheat was grown only in 1916 and 1917 on irrigated land. 
In 1916 a plat of about 0.15 acre was sown to buckwheat on May 31 
at the rate of 6 pecks per acre. The seed was of the Japanese type 
obtained locally. The plants were in full bloom during the hottest 
weather and many of the flowers were blasted. Although consider- 
able plant growth was made, the plat yielded at the rate of only 21.1 
bushels per acre. In 1917 a plat containing about 0.9 acre was sown 
to buckwheat on June 16. The land was sloping and the buckwheat 
was injured by the soil washing at the first irrigation. The land also 
contained a considerable growth of volunteer barley, alfalfa, and 
weeds, which the buckwheat failed to check. The yield was 12.7 
bushels per acre. Buckwheat is not as productive as other grain crops 
at Xewell. 
PROSO. 
Proso was grown only in 1918 and 1919 on irrigated land. It is 
not well suited to irrigated conditions, and many other late sown 
crops doubtless are more profitable. The yields were not large dur- 
ing either season, and in 1919 the crop was damaged considerably by 
birds. Four varieties of proso were grown under irrigation, the yields 
of which are shown in Table XLV. 
Table XLV. — Yields of four varieties of proso grown on irrigated land on- the 
Belle Fourche Experiment Farm in 1918 and 1919. 
Variety. 
CI. 
No. . 
Yields per acre (bushels). 
1918 ! 1919 a 
Average. 
4 
„ 179 
61 
27 
21.4 
5.9 
13.7 
15. 5 
27.1 
25.9 
5.7 
16.5 
11.6 
10.6 
21.8 
IS. 8 
a Damaged by birds in 1919. 
