SORGHUM EXPERIMENTS ON THE GREAT PLAINS. 
59 
Table 14. — Agronomic data regarding sorghum varieties grown in date-of-seeding 
experiments at Hays, Kans., in the 5-year period from 1914 to 1918, inclusive. 
Yields 
per acre. 
Ave 
rage. 
Variety and 
approximate 
1914 1915 
1916 
1917 
1918 
Average. 
date of 
seeding. 
P 
93 i 
6 
i 
93 
03 
$ 
a 
c3 i -5 
t>c a 
&> ' .3 
CJO 
03 
= 
bfi 
c3 
d 
2 
o 
'3 
t« '3 
i- 1 '3 
■~. ' '3 
!_ 
'3 
~ 
3 
o 
O 
M 
O fci 
O 
C 
93 
a 
i 

N C 
h 

fc ! O 
fr 
O 
fc 
o 
a 
93 
v. 
Black Amber: 
Tons. 
Bush . 
Tons. 
Bush. 
Tons. 
Bush. 
Tons. 
Bush. 
Tons. 
Bush. 
Tons. 
Bush. 
Inches. 
Days. 
May 1 
2.31 
27. 2 4. 07 
40.9 
2. 21 15. 4 
1.62 
9.6 
2.20 
7.1 
2.48 
20.0 
67 
114 
May 15.... 
2.51 
28.8 3.59 35.1 
1.83 | 7.0 1.76 
9.8 
2.65 
3.6 
2.47 
16.9 
65 
107 
June 1 
2.33 
20. 3 1 4. 22 j 37. 6 
1. 86 i 6. 8 ' 1. 65 
11.8 
2.78 
7.3 
2.57 
18.0 
67 
95 
June 15 
2.45 
31. 9 4. 73 
40.8 
2.35 
12. 5 ! 1. 81 
10.9 
2.47 
9.5 
2.76 
21.1 
71 
90 
July 1 
2.46 
30.0 j 4.44 
32.1 
1.89 
7.7 2.05 
15.7 
2.29 

2.63 
17.1 
68 
88 
Red Amber: 
May 1.... 
2.87 
11.7 4.76 
29.6 
1.12 
2.00 
10.9 
2.24 
4.3 
2.60 
11.3 
70 
121 
Maylo.... 
2.93 
15.4 | 4.32 
20.5 
1.26 
,1.86 
10.2 
1.91 

2.46 
9.2 
65 
111 
June 1 
3.81 
19.3 4.82 
16.6 
1.81 
2.34 
11.1 
2.07 

2.97 
9.4 
66 
101 
June 15 
3.48 
15.9 5.50 
25.8 
1.86 

2.60 
10.5 
1.73 
3.6 
3.03 
11.2 
68 
95 
July 1 
3.64 
23.9 i 4.54 
9.5 
1.70 

2.87 
5.2 
1.95 

2.94 
7.7 
65 
95 
Freed sor- 
ghum: 
May 1.... 
2.30 
28. 5 3.06 
27.3 
1.14 
12.4 
.99 
6.3 
.45 
4.1 
1.59 
15.7 
69 
115 
May 15.... 
2.34 
25.4 < 2.95 
23.1 
1.01 
9.6 
1.35 
5.2 
1.42 
15.2 
1.81 
15.7 
67 
106 
June 1 
2.22 
26.5 1 3.43 
22.3 
1.21 
11.6 
1.44 
7.3 
1.57 
13.9 
1.97 
16.3 
68 
94 
June 15 
2.46 
31.5 3.83 
26.4 
1.54 
14.5 
.93 
7.0 
1.80 
10.7 
2.11 
18.0 
67 
88 
July! 
2.43 
27.4 | 3.39 
20.9 
1.37 
14.3 
1.15 
6.4 
1.92 
9.8 
2.05 
15.8 
66 
83 
Feterita: 
May 1 . . . _ 
1.75 
16. 8 j 3. 94 
29.6 
1.36 
9. 8 1. 30 
8.6 
.70 
6.3 
1.81 
14.2 
60 
119 
May 15—. 
2.24 
18.3 3.21 
32.5 
1.03 
7.3 1.66 
12.7 
1.55 
8.8 
1.94 
15.9 
56 
110 
June 1 
3.18 
28.1 4.26 
42.6 
1.15 
3. 6 1 1. 27 
10.4 
1.70 
6.8 
2.31 
18.3 
54 
101 
June 15 
2.44 
19.4 2.48 
19.7 
.87 
5.9 
1.60 
11.8 
1.79 
8.9 
1.84 
13.1 
54 
94 
July 1 
2.86 
21.3 2.78 
12.9 
.98 
3.9 
1.52 
5.0 
1.77 

1.98 
8.6 
53 
97 
Dawn kafir: 
May 1 
3.08 
7.2 4.35 29. 1 
.90 
4.3 
2.14 
1.8 
.22 
3.0 
2.14 
9.1 
50 
129 
May 15.... 
3. 55 
9.0 5.09 ! 62.9 
1.02 
3.2 
2.44 
1.8 
.76 
5.9 
2.57 
16.6 
50 
120 
June 1 
3.29 
7. 4 6.10 65. 1 
.99 
1.3 
2.39 

1.62 
10.2 
2.88 
16.8 
49 
111 
June 15 
3.55 
19.3 1 4.46 
42.7 
1.29 

2.43 

1.70 
8.4 
2. 69 
14.1 
48 
108 
Julvl 
2.38 
4.41 
9.6 
1.69 

2.78 

1.77 

2.61 
1.9 
46 

EXPERIMENTS AT CHILLICOTHE, TEX. 
The experiments at Chillicothe began a month earlier each year 
than at Hays and encountered a greater variation of climatic factors. 
Five varieties were grown on duplicate twentieth-acre plats through- 
out the period from 1913 to 1917. The preceding crop in 1913 and 
1914 was sorghum, and from 1915 to 1917 it was small grain. The 
soil preparation consisted of plowing in the fall or winter, working 
the ground down in the spring, and seeding in shallow furrows. 
The first two dates, April 1 and 15, rarely afforded ideal seeding 
conditions, the soil in most years being too cold and damp and in 
1917 too dry. Weeds were much more troublesome in these early 
seedings, and in several instances the stands were quite irregular, 
especially those of feterita and Freed sorghum. The April 1 seedings 
required from 10 to 31 days to emerge; the April 15 seedings, 7 to 23 
days: and the later dates with few exceptions only 4 to 7 days. The 
dates from May 1 to June 15, inclusive, were all quite satisfactory in 
general, except that long wet periods in 1914 and 1915 prevented 
seedings on those dates. July 1 was too dry for seeding in 1913, and 
in 1916 only the Freed came up promptly. 
In 1914 two cuttings, both of which matured seed, were obtained 
from the seedings of feterita made on April 1 and April 15. A second 
cutting, of forage only, was obtained from the third date of feterita. 
the first four dates of Freed, the first two dates of kafir and milo, and 
