CROPS UNDER FALL IRRIGATION AT SCOTTSBLUFF. 
13 
Table VII. — Results obtained with sugar beets on fall-irrigated land (Series VI) and on 
land not fall irrigated (Series VII) at the Scottsbluff Experiment Farm in 1912 and 
1913. 
Year and 
plat. 
Yield per acre 
(tons). 
VI. 
VII. 
Plat 3 
1912. 
13.4 
11.0 
12.3 
13.1 
Plat 8 

8.6 
Plat 13 - 
12.6 
12.2 
11.4 
1913. 
Plat 9..., 
11.2 
11.6 
8.3 
Plat 14 
9.5 
11.4 
8.9 
12.3 
10. r 
Difference in favor of fall irrigation . 
+ 1.6 
POTATOES. 
The preparation of the land for potatoes was substantially the 
same as that for the crops previously discussed. Early Ohio pota- 
toes were used. The seed was planted in rows 42 inches apart, with 
the hills 15 inches apart in the row. 
In 1911 the potatoes were planted during the second week in May. 
The plants came up promptly on both series and made good growth 
until July 3 . At this time a disease known as leaf-roll attacked them 
and in less than two weeks the entire crop was destroyed, so that no 
yields were secured in 1911. 
In 1912 the potatoes were planted during the second week in May. 
At the time of planting, the surface soil contained an abundance of 
moisture and an excellent stand was secured on both series. During 
the growing season no important differences were apparent between 
the two series. The crop was irrigated three times during the season. 
In 1913 the potatoes were planted on May 30. Good stands were 
secured and no differences in the growth of the vines on the two series 
were noted during the season. The plats in both series were irrigated 
uniformly twice during the season. The numbers of the plats and 
the yields per acre in 1912 and 1913 are stated in Table VIII. 
As shown in Table VIII, no important differences, either in the 
individual yields or in the average yields, were obtained with pota- 
toes. Considering the average results obtained during each of the 
two years, the yields were slightly higher on the fall-irrigated land, 
but the differences were insignificant. 
