78 
BULLETIN 1260, U. S. DEPARTMENT OF AGRICULTURE. 
of grain. and 3.16, 2.86, and 2.63 tons of fodder, respectively. The 
differences in yield are almost negligible, considering the whole 
period and all the rates. If we consider only the thick rate, we find 
a spread of approximately 3 bushels per acre of grain and 0.6 ton 
of fodder in favor of the 40-inch over the SO-inch row space; compar- 
ing the 40-inch and the alternate 40 and 80-inch rows, we find that 
the average grain yields are equal and the fodder yield only 0.3 
ton per acre greater from the 40-inch rows. 
The very consistent increase in both the forage and grain yields as 
the number of plants per acre is increased is noteworthy. This 
increase is apparent for each row space, and the average yields for the 
thick seeding are greater than those of the thin seeding by approxi- 
mately 1 ton of fodder and 10 to 12 bushels of grain. It should be 
pointed out, however, that climatic conditions were rather favorable 
throughout the period of this experiment, and it is probable that the 
thinner rates and wider spaced rows would make a better showing 
in adverse or droughty seasons. 
EXPERIMENTS AT CHILLICOTHE, TEX. 
Climatic conditions at Chillicothe during the period covered by the 
experiments were much less favorable than at Hays, Kans., especially 
in 1918 and 1922. Kegardless of this fact the stands obtained were 
for the most part uniform and the row space very near that outlined 
for the different plats. The alternate 40 and 80-inch row test was 
not introduced into the experiment until 1920; hence, two averages 
are given, one for the 5-year period, 1918 to 1922, and the other for 
the three years, 1920 to 1922. An added feature of the Chillicothe 
experiment was the seeding of sorghum in rows 80 inches apart with 
a row of cowpeas between. The yields obtained from the different 
methods of seeding are shown in Table 23. 
Table 23. — Yields of Dwarf kafir and feterita when seeded in rows different dis- 
tances apart at Chillicothe, Tex., in stated years. 
Spacing 
i 
Air-dry fodder per acre Threshed grain per acre 
(inches) . 
(tons). (bushels). 
Aver- 
Aver- 
Variety. 
Width 
of 
Row 
space 
1918 
1919 
1920 1921 
1922 
age. 
1919 
1920 
1921 
1922 
age. 
1918 
rows. 
per 
plant. 
1918 
to 
1920 
to 
1918 
to 
1920 
to 
1922 
1922 

1922 
1922 
r • 40 
16 
0. 88 2. 28 
2. 27 1. 85 1. 50 
1.76 
1.87 
24.8 
30.1 
16.3 
13.4 
16.9 
19.9 
80 
8j .75 2.03 
2.33 1.36 1.01 
1.50 
1.57 4.5 
22.9 
31.4 
15.9 
16.0 
18.1 
21.1 
Dwarf kafir 
40 
81.00 2.49 
2.49 2. 11 1.76 
1.97 
2.12 
25. 6 
29.5 
22.8 
7.7 
17.1 
20.0 
80 
4 . 86 2. 13 
2. 33 
i. »y l. eo 
1. 69 
1.83 
23. 3 
33. 1 
20. 1 
14.5 
18.2 
22. 6 
140-80 
6... 
2.34 
1. 32 I. 36 
1.67 
29.2 
16.0 
11.5 
18.9 
,2 80-C 
8 
. 74 1. 56 
2. 12 
1.11 .97 
L30 
1. 40 
"16.-1 
30.9 
11.8 
4.1 
12." 6 
15.6 
[ 40 
16 
. 34 2. 42 
2.23 
1.32 1.1.-. 
1.49 
1.57 1.8 
,7.2 
34.7 
29.1 
26. 4 
25. S 
30.1 
80 
8 
. 48 1. 73 
1.67 .96 .92 
1.15 
1. 18 3.3 
2s. '.I 
32. s 
22.1 
27.9 
23. 
27.6 
Feterita 
40 
8 
. 30 2. 48 
2.261.51 1.18 
1.55 
L65 1.5 
39. 
37. 
30.7 
28.8 
27. 4 
32. 2 
80 
4 .'. 
2. 12^ . 98 . 92 
1. 27 
1. 34 2. 1 
31.5 
:<:.. 2 
30. 1 
25. 9 
25.0 
30. 4 
140-80 
,2 80-C 
6 
s 
2. Hi 1. 36 1.01 
L.~09 
1 . 5 1 
1.06 1.3 
22." 8 
35. 5 
29.2 
20. 
18.3 
28.8 
22. 9 
IK. 9 
28.1 
"."39 1.89 
1.50 
.78 
.89 
23. 5 
i In this plat the rows were alternately 40 and 80 inches apart. Thus, each row was adjacent to an 80« 
inch space on one side and a 40-inch space on the other. 
2 In this plat the rows were 80 inches apart, with a row of cowpeas between. 
