20 
BULLETIN 10, U. S. DEPARTMENT OF AGRICULTURE. 
As long as the size of the beets permitted, thorough cultivation fol- 
lowed each irrigation, and all plats were kept free from weeds. 
Following are the dates of irrigation and the amounts of water 
applied: 
Schedule of irrigation of sugar beets in 1 912. 
Time of seeding. 
N umber 
of plat. 
Number of irrigations. 
Date. 
Depth 
applied. 
f 5 
6 
f 1 
2 
3 
4 
fNone 
Inches. 
One 
May 21 
/Mav 21 
\June 21 
10.5 
[Two 
9.2 
(None 
4.4 
One 
May 24 
fMay 26 
\Jurie 21 
[May 24 
<Jurie 21 
6 12 
Later Mar. 27 
Two 
6.12 
Three 
5.40 
6.12 
[July 17 
5.28 
All plats were harvested the last of August, being, plowed, topped, 
and sold in the field. At this time average samples were taken from 
each plat and tests made for sugar percentage and purity. 
Seeded march-ii Seeded March 27 
Water Applied,- inches 

10.5 
149 
O 
6.12 
11.52 
. 17.80 
18 
16 
uj 14 
a. 
o 
2" 
m 
z 
M 
Z 
o 6 
UJ 
2 

_fs 
10 
0: 
<0 
(0 
f5 
"5 
.0 
1 
o 
■£ 
!* 
r 
r 
>> 
1 
(NJ 
-»* 
CM 
CO 
Fig. 7. — Yield of sugar beets, seeded at two periods and irrigated with different quantities 
of water. 
The table following shows the results in yield, sugar percentages, 
purity, and net returns per acre. These results are illustrated in 
figure 7. the yields and corresponding amounts of water applied 
being shown. 
