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CEREAL EXPERIMENTS ON THE CHEYENNE EXPERIMENT FARM. 35 
RATE-OF-SEEDING EXPERIMENT. 
Russian flax (C. I. No. 19) was grown at the Cheyenne Experiment 
Farm in a rate-of-seeding experiment during 1914 and 1915. Plats 
were sown each year at the rate of 10, 15, 20, and 25 pounds per acre. 
The annual and average yields obtained in this test are shown in 
Table XXV. | 
TaBLE XXV.—Annual and average yields of Russian flax (N. Dak. No. 155) grown in 
a rate-of-seeding test on the Cheyenne Experiment Farm in 1914 and 1915. 
Yield per acre. 
Rate of seeding. 1914 1915 2-year average. 
Grain. | Straw. | Grain. | Straw. | Grain. | Straw. 
— 
\Bushels.|Pounds.|Bushels.|Pounds.|Bushels.| Pounds. 
LOR OMM ASAE ee cease ce ee Se eee Ls ee 4.3 640 14.9} 1,380 9.6 1,010 
Peypoundss.=.5...42..2 7 (ale a ea ere.) ene 4.7 675: | AESOP 1099 992 
POM OUITN SEs eee Pes hoo ere ore sae orci aecistaiecays ate 6.0 545 14.9} 1,280 10.4 912 
ABS FOCORETANG Sho 2 a a eR ga ye 4.5 580 14.2 1, 200 9.3 890 
Low yields were obtained in 1914, due to summer drought. The 
highest yield was 6 bushels per acre, obtained from the 20-pound rate 
of seeding. Fallow land was used in this test in 1914. 
In 1915 the sowings were made in duplicate twentieth-acre plats on 
double-disked corn ground. The summer was cool and wet and the 
yields were high. The highest yield was obtained from the plat sown 
at the rate of 15 pounds per acre. 
Two years’ results in the rate-of seeding test indicate that 15 to 20 
pounds per acre is about the right quantity to sow. 
DATE-OF-SEEDING EXPERIMENT. 
A date-of-seeding experiment with flax has been in progress at the 
Cheyenne Experiment Farm for three years. In 1913, tenth-acre 
plats were sown on three different dates, May 1, May 15, and June 1. 
The highest yield was 7 bushels, obtained from the plat sown on June 
1. In 1914, tenth-acre plats were sown on four dates, as shown in 
Table XXVI. The highest yield was 5.4 bushels, obtained from the 
June 1 sowing. In 1915, duplicate twentieth-acre plats were sown 
on four dates. The highest yield resulted from the sowing made on 
June 1. The land on which this experiment has been conducted 
received the same preparation as that on which the varieties were 
grown. The annual and average yields obtained are shown in Table 
XXXVI. ) | 
There has been a progressive increase in yield from the early to the 
late seedings each year. The soil is rather late in warming up at 
Archer, and the early sowings have grown more slowly and required 
a longer period to reach maturity than the plats sown as late as June 1. 
However, the early sowings mature more uniformly than the late ones. 
