44 
BULLETIN 1039. U. 
DEPARTMENT OE AGRICULTURE. 
pound rate. The net increase for the 30-pound rate is only about 0.5 
bushel, which probably is not significant. However, these experi- 
ments were all conducted on a well-prepared seed bed. and probably 
the results from the 15-pound rate are better than would be obtained 
under ordinary seed-bed conditions. The best rate of sowing for flax 
on dry land at Newel] probably is about 2 pecks (28 pounds) per 
acre. The data from the rate-of-seeding experiments are shown in 
Table XXXI. 
Table XXXI. — Yields of flax grown in rate-of-seeding experiments on dry 
land on the Belle Fourche Experiment Farm in 191.2 and from 1915 to 
1918. inclusive. 
Yields per acre ("bushels . 
Rate of seeding per acre. 
1912 
1915 
1916 
Average. 
1917 
1918 
1915 to "J. 2 *" 1 
1Q1 c 191o to 
191 - 1918 
15 pounds 
9.6 ! 
23.6 
2.5.6 
27.0 
8.2 
8.4 
7.2 
7.8 
7.S 
7.4 
9.2 
7.9 
9.5 
12.2 1 11.7 
12.4 1 
11.2 
12.8 i 12.5 
a Common flax used in 1912: Primost, C I. No. 12, in 1915 and 1916; and Damont, C I. No. 3, in 1917 and 
1918. 
Table XXXII. — Yields of flax grown in date-of-seeding experiments on dry- 
land on the Belle Fourche Experiment Farm. 191.2. 1913. and 1915 to 1919. 
inclusive. 
Yields per acre ^bushels). 
Date of seeding. 
1912 1913 
191.: 
1916 1917 1918 
1918. 
April 20 to 25 
May 2 to 8 
Mav 15 to 20 
"'.'.'." 8.3" .. 
......... 
"**20.'6 | 
6.3 
5.8 
5.3 
5.5 
9.2 
10.8 
11.4 
7.5 
8.0 
8.4 
Mav 20 to2o 
i*8 
3.0 
21.5 
6.9 .. 
June 1 to 10 
10.6 
4.2 
6.5 
5.4 
a Early seeding blown out. t Did not emerge. 
DATE-OF-SEEDIXG EXPERIMEXTS. 
Date-of-seeding experiments with flax were conducted in 1912. 
1913. and 1915 to 1918, inclusive. The Primost variety (C. I. Xo. 
12) was grown in 1912. 1913. and 1915 and Damont (C. I. Xo. 3) 
in 1916, 1917. and 1918. Sowings were made on two. three, or four 
dates each season. The dates of seeding were not the same each 
year, because the soil frequently was too Avet when the sowings 
should have been made. Because of the variable seasons and the 
irregularities in the experiment it is difficult properly to summarize 
