10 
BULLETIN 291, U. S. DEPAKTMENT OF AGKICULTUKE. 
Allowing a germination of 75 per cent, ordinary seed will produce about 
one plant per linear foot of row when seeded at the rate of 1 pound 
per acre in rows 3| feet apart. This dwarf form of sorgo, Dakota 
Amber, may be planted somewhat thicker than the larger kinds, so 
that 5 or more pounds per acre are recommended. 
It is necessary to have sorgo nearly mature at the time of harvest, 
in order that the crop may have the highest possible food value. 
The protein and fats are present in relatively large quantity in the 
earlier growth of the plant, while the carbohydrates develop most 
rapidly in the later stages of growth. For this reason it is desirable 
to have a variety which will approach maturity in the region where 
it is grown, in order to secure the maximum food value of the crop. 
Table V. — Comparative yields of air-dry forage of sorgo, corn, and Sudan grass at 
Akron, Colo., Mandan, N. Dak., Newell, S. Dak., and Ardmore, S. Dak., from 1911 
to 1914. 
%£he actual yield 
stated as pounds per acre; the relative yield is the ratio to that of Dakota Amber, 
which is taken as 100 in each case.] 
Akron, Colo. 
Mandan, N. Dak. 
Crop, variety, and strain. 
19111 
1912 2 
1914 3 
1914 s 
Actual. 
Rela- 
tive. 
Actual. 
Rela- 
tive. 
Actual, 
Rela- 
tive. 
Actual. 
Rela- 
tive. 
Sorgo, Dakota Amber: 
A. D.I. No. 341-10-4 
Sorgo, Minnesota Amber: 
A D I No 341-2 
5,155 
4,600 
4,410 
5,500 
7,300 
100 
89 
86 
107 
142 
7,480 
8,780 
6,540 
7,850 
9,980 
100 
117 
87 
105 
133 
5,530 
6,880 
5,860 
100 
126 
106 
7,570 
100 
A D I No 341-13 
A D I No 341-5-1 
Sorgo Red Amber 
7,320 
132 
11, 720 
4,210 
3,215 
157 
56 
3,840 
69 
42 
Newell, S. Dak. 
Ardmore, S. Dak, 
Crop, variety, and strain. 
1913* 
1914 2 
• 1913 & 
1914 2 
Actual. 
Rela= 
tive. 
Actual. 
Rela- 
tive. 
Actual. 
Rela- 
tive. 
Actual. 
Rela- 
tive. 
Sorgo, Dakota Amber: 
A. D. I. No. 341-10-4 
Sorgo, Minnesota Amber: 
A. D. I. No. 341-2 
A. D. I. No. 341-13 
2,150 
2,770 
2,200 
3,080 
1,500 
1,600 
100 
129 
102 
143 
70 
74 
3,400 
4,040 
100 
119 
820 
700 
100 
85 
1,670 
1,660 
100 
99 
A. D. I. No. 341-5-1 
3,420 
2,5"0 
1,570 
101 
75 
43 
600 
73 
2,600 
1,010 
890 
156 
Soro, Northwestern Dent 
60 
Sudan grass 
53 
'The average yield of duplicate plats except in the case of Red Amber Sorgo, of which only 1 plat was 
jrown. 
" 2 The average yield of duplicate plats. 
3 The average yield of triplicate plats. 
«The yields of Dakota Amber sorgo, Red Amber sorgo, and corn were secured from single plats; the 
yields of the three selections of Minnesota Amber sorgo from duplicate plats. 
s The yields secured from single plats of each variety. 
