CEREALS ON THE BELLE FOURCHE EXPERIMENT FARM. 
19 
Table X. — Average agronomic data for Kubanka durum spring wheat grown 
in rate-of-seeding experiments on dry land on the Belle Fourche Experiment 
Farm, 1913 to 1917, inclusive. 
Rate of seeding, per acre. 
3 pecks 
4 pecks 
5 pecks 
6 pecks 
7 pecks 
Emer- 
gence to Height, 
maturity. 
Days. 
Inches. 
30 
30 
30 
29 
29 
Weight 
per 
bushel. 
Stand 
per acre. 
j Yields per acre. 
Pounds. 
58.6 
58.7 
58.3 
58.3 
58.2 
Plants. 
382, 000 
428, 000 
517, 000 
604, 000 
678, 000 
Grain. Straw. 
Pounds. 
1,158 
1,140 
1,164 
1,134 
1,122 
Pounds. 
2,458 
2,421 
2,649 
2,500 
2,479 
a Average for 3 years, 1915, 1916, and 1917. 
DATE-OF-SEEDING EXPERIMENTS. 
A date-of-seeding experiment with Kubanka spring wheat was 
conducted in 1912, 1915, and 1916. In 1912 the crop was a failure 
except on the late-sown plats, because of drought during June. In 
1915 and 1916 the yields from the early sowing were highest, with 
the later sowings yielding considerably less. The yield from the 
earliest sowing in 1916 is not shown, because the wheat was sown 
on land where soil blowing was unusually severe. The yields from 
the date-of-seeding experiment are shown in Table XI. 
Table XI. — Yields of Kubanka durum spring wheat grown in date-of-seeding 
experiments on dry land on the Belle Fourche Experiment Farm in 1912, 
1915, and 1916. 
Date sown. 
Yields per acre (bushels). 
1912 
1915 
1916 
Average. 
April 9 to 25 


13. 5 
52.5 
37.2 
27.3 
14.2 
12.3 
4.9 
22.2 
May 1 to 8 
16.5 
May 15 to 26 
15.2 
As shown in Table XI, the early-sown wheat yielded an average of 
22.2 bushels per acre, the plats from the second sowing yielded 16.5 
bushels, while those sown last yielded only 15.2 bushels per acre. This 
was in accordance with the usual experience with spring wheat, oats, 
and barley at Newell, viz, the earlier the sowing the higher the yield. 
XERSERY EXPERIMENTS. 
Many varieties of spring wheat were grown in rows, but because 
of their apparent lack of adaptability were not sown in plats. A 
considerable number of foreign varieties were thus tested in a pre- 
liminary way and later discarded. Most of the nursery experiments 
with spring wheat consisted in the testing of pure-line selections 
made at Newell from both durum and common spring wheats. Selec- 
