48 
BULLETIN 1039, U. S. DEPARTMENT OF AGRICULTURE. 
The Acme variety, a rust-resistant durum wheat originated at the 
Higlimore (S. Dak.) substation, has not yielded as well as Kubanka 
under irrigation. 
Table XXXIV. — Average agronomic data for five varieties of spring wheat 
grown on irrigated land on the Belle Fourche Experiment Farm. 191 .'i to \ 
1917, inclusive, and in 1919. - 
Class, group, and variety. 
C. I. 
No. 
Fife: 
COMMON. 
Marquis 3276 
Power 3025 
Bluestem: 
Haynes Bluestem 2874 
Preston: 
Champlain 4872 
Kubanka. 
Date of- 
Heading. Maturity 
July 13 
July 15 
July 17 
July 14 
July 12 
Aug. S 
Aug. 10 
Aug. 14 
Aug. 10 
Aug. 11 
Height. 
Inches. 
29 
31 
35 
33 
35 
Weight 
per 
bushel. 
Yields per acre. 
Grain. 
Pounds. 
58.3 
58.6 
56.0 
57.7 
62.3 
Bushels. 
17.0 
19.0 
16.3 
18,9 
24.1 
Straw. 
Pounds. 
1,409 
1,729 
1,666 
1,511 
1,708 
Table XXXIV shows the average dates of heading and maturity, 
the average height, weight per bushel, and yields of grain and straw 
of five of the varieties of spring wheat grown from 1914 to 1917, 
inclusive, and in 1919. The Marquis variety is the earliest and 
shortest. The Haynes Bluestem averaged six days later in maturity 
than Marquis and gave the lowest weight per bushel of any of the 
varieties. Kubanka, a durum wheat, had an average weight per 
bushel of 62.3 pounds. 
NURSERY EXPERIMENTS. 
The nursery experiments with spring wheat on the irrigated land 
consisted in the growing of a considerable number of foreign varieties 
in preliminary row tests. Xothing of unusual value was observed 
in the experiments. 
WINTER WHEAT. 
VARIETAL EXPERIMENTS. 
The varietal experiments with winter wheat under irrigation were 
begun in the fall of 1914. when seven varieties and strains were 
sown. The wheat was sown on land which had been both irrigated 
and summer-fallowed and was thus in excellent condition for pro- 
ducing a crop. The resulting yields were quite large, but this was 
partly due to the very favorable season of 1915. 
In 1916 and 1918 the winter-wheat varieties were sown on corn- 
land which was irrigated, disked, and harrowed before seeding. 
Figure 15 shows construction of a ditch to irrigate the cornland 
before sowing winter wheat. The 1916 crop was greatly reduced by 
