Summary of results of oats and lolieat irrigation. 
19 
Crop. 
Number 
of plat. 
Number of 
irrigations. 
Depth. 
"yield per acre. 
Percent- 
age of 
grain. 
Grain 
value at 
$1.50 per 
100 pounds. 
Cost of 
Hay. 
Grain. 
tion. 
(32 
m 
134 
(32 
hs 
134 
Inches. 
Pounds. 
1,380 
4,900 
5,820 
1,730 
3,920 
6,300 
Pounds. 
435 
1,420 
2,040 
560 
1,210 
1,935 
Per cent. 
31.8 
28.0 
35.1 
32.4 
30.9 
30.8 
$6.53 
21.30 
30.60 
8.40 
18.15 
29.03 
Oats 
One 
13.2 
20.4 
$3.96 
Two 
6.12 
Wheat 
One 
10.0 
18.4 
3.00 
Two 
5.52 
Note.— Irrigation cost figured at 30 cents per acre-inch for power and attendance. 
With the oats the single irrigation of 13.2 inches increased the yield 
225 per cent, giving a gain in returns of $14.77 per acre, at a cost 
of $3.96 per acre for irrigation. Two irrigations, totaling 20.4 inches, 
increased the yield 370 per cent, with a gain of $24.07 per acre in 
grain value, at a total cost of $6.12 per acre for water and attendance 
during irrigation. 
Figuring on the same basis with the wheat, one irrigation of 10 
inches increased the yield 116 per cent, with a gain in returns of $9.55 
per acre, at a total increased cost of $3 per acre. Two irrigations 
increased the yield 245 per cent, giving an increase in returns of 
$20.63 per acre, at a total expense of $5.52 per acre. 
It will also be noted that in all cases the percentage of grain to 
hay remains about the same, showing the grain production to increase 
uniformly with the total weight of matter produced. 
No definite conclusions can be drawn from this one season's work. 
A decided advantage, nevertheless, is shown in favor of irrigation. 
All of the water was applied at a financial gain, and an idea is 
obtained of what may be accomplished in years of light rainfall 
when conditions are unfavorable to dry-land farming. 
SUGAR BEETS FOLLOWING ALFALFA. 
Following the early spring preparation of checks 1 to 15, the land 
was replowed on February 22, then harrowed and cross-harrowed. 
The area was* divided into seven plats, 5, 6, and 7 to be seeded early, 
and 1, 2, 3, and 4 seeded later. March 11 the first plats were seeded 
in drills 20 inches apart, 15 pounds of Wankaka seed per acre being 
used. March 27 the remaining checks were seeded in the same 
manner. Spacing, thinning, and hoeing followed when the beets were 
in the third and fourth leaf, and this was followed by a thorough 
cultivation. 
The dates of irrigation depended upon the needs of the crop, and 
sufficient water was added to give the soil a thorough wetting. The 
furrow method of irrigation was practiced, the water being applied 
in alternate spaces between the rows, and as nearly as possible the 
w T ater was confined to the furrows and kept away from the beets. 
