12 
BULLETIN 1039, U. S. DEPARTMENT OF AGRICULTURE. 
plats of standard varieties of each cereal were sown at regular inter- 
vals in 1909 and 1910, and in most of the experiments in 1908. As 
this method did not appear to be entirely satisfactory, a change was 
made in 1911 in some of the experiments and in all those conducted 
from 1912 to 1919. The size of the plats was reduced, as stated in 
the preceding paragraph, and the experiments were replicated. In 
the varietal experiments, three to five plats of each variety were 
grown. In rate-of-seeding and date-of-seeding experiments it has 
been considered sufficient to grow three plats of each rate or date, 
as there is a correlation between the different parts of the experiment 
which is not found in the varietal experiments. Some of the date- 
of-seeding experiments were sown only in duplicate. 
RATES AND DATES OF SEEDING. 
The usual rates of seeding of the grains in the varietal and date-of- 
seeding experiments on both dry and irrigated land are shown in 
Table VI. 
Table VI. — Rates of seeding of the grains in varietal and date-of-sccding 
experiments on dry and on irrigated land on the Belle Fourchc Experiment 
Farm. 
Crop. 
Winter wheat pecks. 
Spring wheat do. . . 
Winter rye do. . . 
Oats - do... 
Rate of seeding per 
acre. 
Dry 
Irrigated 
land. 
land. 
3 
4 
4 
5 
4 
5 1 
6 
io S 
Rate of seeding per 
acre. 
Crop. 
Dry 
land. 
Barley pecks. 
Flax. pounds. 
Proso do. . . 
22.5 
22.5 
Irrigated 
land. 
Spring grains have been sown as early as seemed practicable. 
During wet spring weather the seeding has sometimes been con- 
siderably delayed. In a few seasons some of the grains have been 
sown in March, but usually the spring grains were sown between 
April 1 and May 10. Winter grains were usually sown between 
September 15 and October 1, which appeared to be the most favor- 
able time for fall sowing. 
NURSERY EXPERIMENTS. 
NATURE OF THE WORK. 
The nursery experiments at Newell have included varieties newly 
introduced, those of which there was not sufficient seed for sowing in 
the field plats, and also pure-line selections from the better commercial 
