er een Vee 
CEREAL INVESTIGATIONS ON THE BELLE FOURCHE FARM. 25 
August 15 to November 1. In addition, all the varieties were sown 
in the fall of 1907 on two dates, September 15 and October 5. In 
erowing winter wheat in western South Dakota the date of seeding 
is considered to be next in importance-to the selection of the variety 
and the preparation of the seed bed. The climatic conditions vary 
so much from year to year that it is difficult to determine this date 
accurately. The data here printed are believed to be suggestive 
only. 
Table XIV shows the annual and average yields of winter wheat 
obtained on the Belle Fourche Experiment Farm from seeding on 
several dates during the years 1908 to 1913. 
TaBLE XIV.—Annual and average yields of Turkey winter wheat in a date-of-seeding test 
on the Belle Fourche Experiment Farm, 1908, 1909, 1910, and 1913. 
Yield per acre (bushels). 
Date of seeding. Average. 
: 1908 1909 1910 1913 
me | 1908-1910 1909, 1910, 
and 1913.: and 1913. 
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1 Not sown because of severe drought. 2 Did not germinate. 
As shown in Table XIV, the highest yield in 1908, 25.5 bushels 
per acre, was produced from the latest seeding. The difference in 
yield from the various dates of seeding was slight, except that the 
plat sown on September 16 yielded only 20.3 bushels per acre. The 
fall of 1907 was dry and the comparatively low winter survival and 
low yield of the earlier sown plats may have been due to the fact that 
growth was checked by the drought, and hence the plants did not 
go into the winter in good condition. In the varietal test, which was 
sown in duplicate on September 15 and October 5, six of the seven 
varieties produced higher yields from the later seeding. 
The highest yield in 1909 was from the plat sown October 1, with 
eradual decreases toward the earlier and later seedings. Germination 
was prompt on the plat sown August 16, but the plants on the plats 
sown September 1, September 16, and October 1 did not emerge 
until October 23. Damage from the blowing of the soil prevented 
taking accurate notes on winterkilling. 
In the fall of 1909 the plats were sown in duplicate with the excep- 
tion of the first date. For some reason there was no germination on 
the plats sown October 1. The plants on one series of the plats sown 
on October 16 and November 1 were killed by the blowing of the soil 
