CEREALS ON THE BELLE FOURCHE EXPERIMENT FARM. 
43 
of the experiments, but only three varieties were grown all of the 
seasons. Good yields of flax were obtained in 1912, 1915, and 1918, 
fair yields in 1916 and 1917, and poor yields in 1913 and 1914, while 
the crop was a complete failure in 1919. The yields depended chiefly 
upon the seasonal precipitation. Very little injury from diseases 
was observed. The yields are shown in Table XXX. 
It will be observed (Table XXX) that the Damont variety, C. I. 
No. 3, gave the highest average yields during both the 6-year and 
8-year periods. The next highest yields were obtained from the 
Reserve variety, C. I. No. 19. This variety was formerly known as 
Russian and North Dakota No. 155. The wilt-resistant varieties. 
North Dakota Resistant Nos. 52 and 114, have not yielded as well as 
the other varieties. None of the varieties has been reduced in yield 
by wilt injury. The average yields of the flax varieties from 1914 
to 1919, inclusive, are shown in figure 13. 
Table XXX. — Yields of flax varieties grown on dry land on the Belle Fourche 
Experiment Farm, 1912 to 1919, inclusive. 
CI. 
No. 
Yields per 
acre (bushels). 
Group and variety. 
1912 
1913 
1914 
1915 
1916 
1917 
1918 
1919 
Average. 
1912 
to 
1919. 
1914 
to 
1919. 
European seed: 
Select Russian (N. Dak. No. 
608) 
1 
2 
3 
4 
5 
17 
19 
8 
13 
12 
7 
30 
10.6 
10.6 
11.2 
8.2 

7.5 
8.9 
3.3 
2.2 
Select Riga (N. Dak. No. 1214) 
Damont (N. Dak. No. 1215). . 
Kazan (N. Dak. No. 1329) 
5.6 
.7 
23.6 
7.6 
7.2 
13.1 

8.6 
8.7 
Stepan (N. Dak. No. 1340) 
Frontier (N. Dak. No. 155). . . 
5.2 
4.5 
• 
.8 
2.4 
1.5 
1.7 
2.4 
22.0 
«12.3 
16.7 
17.8 
7.7 
7.1 
5.8 
6.2 
6.9 
6.2 
6.3 
6.9 
11.6 
12.9 
10.1 
12.4 




7.9 
**7.T 
8.2 
N. Dak. Resistant No. 52 
Short fiber: 
N. Dak. Resistant No. 114 
6.8 
6.7 
Primost (Minn. No. 25) 
Turkish: 
Turkish 
9.1 
11.4 
4.8 
2.8 
7.5 
18.1 
2.9 
a Reseeded, first seeding failed to emerge. 
RATE-OF SEEDING EXPERIMENTS. 
Rate-of-seecling experiments with flax on dry land were conducted 
in 1912 and again from 1915 to 1918, inclusive. The variety used was 
" common " flax in 1912, Primost in 1915 and 1916, and Damont in 
1917 and 1918. Except in 1912, sowings were made at three rates, 
viz, 15, 22.5, and 30 pounds per acre. The highest average yields 
were obtained from the plats sown at the rate of 30 pounds per acre. 
During the five years, 1912 and 1915 to 1918, inclusive, the 30-pound 
rate gave an average yield of 0.8 bushel per acre more than the 15- 
