Dec. 15,1925 Mineral Composition of Sunflowers Grown for Silage 1167 
Table II. — Sunflower data 
No. 
Stage 
Num¬ 
ber. 
in 
bill 
Dis¬ 
tance 
apart 
in rows 
Num¬ 
ber of 
stalks 
taken 
Height 
Average 
weight 
one 
stalk 
Mois¬ 
ture 
Yield 
per 
acre 
Anhy¬ 
drous 
yield 
per acre 
Crude 
ash 
In¬ 
soluble 
residue 
Pure 
ash 
Inches 
Ft. in. 
Pounds 
Per cent 
Tons 
Tons 
Per cent 
Per cent 
Per cent 
11005.... 
1 
1 
8 
10 
6 
6 
1.38 
81.40 
15.96 
1.55 
14.41 
2 
1 
8 
10 
6 
1 
1.53 
83.44 
14.12 
1.86 
12.25 
3 
1 
8 
10 
6 
1 
1.89 
82.65 
15.76 
2.18 
13.58 
4 
1 
8 
10 
6 
1 
2.05 
81.40 
14.00 
1.56 
12.44 
5 
1 
8 
10 
6 
0 
1.95 
77.40 
10.40 
2.35 
14.12 
1.45 
12.67 
11008_ 
1 
1 
24 
10 
6 
0 
2.40 
82.40 
17.88 
2.47 
15.41 
2 
1 
‘ 24 
10 
6 
0 
2.80 
81.93 
17.31 
3.05 
14.25 
3 
1 
r : ‘24 
10 
6 
4 
3.53 
82.20 
14.28 
1.93 
12.35 
4 
1 
24 
10 
6 
6 
4.34 
82.53 
13.28 
1.61 
11.67 
5 
1 
24 
10 
6 
0 
4.86 
79.40 
7.20 
1.48 
12.76 
1.38 
11.38 
11010_ 
1 
1 
42 
5 
5 
10 
5.22 
84,14 
19.00 
2.42 
16.57 
2 
1 
42 
5 
5 
5 
5.16 
85.53 
16.48 
1.91 
14.57 
3 
1 
42 
5 
5 
11 
6.12 
83.57 
14.56 
2.14 
12.42 
4 
1 
42 
5 
5 
11 
8.02 
83.80 
13.52 
1.70 
11.82 
5 
1 
42 
5 
5 
6 
8.20 
79.40 
9.70 
2.00 
12.00 
1.97 
10.03 
non_ 
1 
2 
42 
10 
5 
11 
2.53 
83.40 
17.60 
2.89 
14.71 
2 
2 
42 
10 
6 
2 
2.73 
83.67 
15.76 
2.30 
13.46 
3 
2 
42 
10 
6 
2 
3.41 
82.23 
13.36 
1.78 
11.58 
4 
2 
42 
10 
, 5 
10 
4.35 
82.07 
13.36 
1.77 
11.59 
5 
2 
42 
10 
6 
0 
5.04 
79.20 
10.30 
2.14 
10.76 
1.20 
9.55 
11002.... 
1 
3 
42 
10 
6 
4 
1 1.93 
82.90 
17.84 
2.04 
15.80 
2 
3 
42 
, 10 
, 6 
2 
/ 2.05 
81.87 
14.32 
1.58 
12.73 
3 
3 
42 
10 
, 6 
5 
2.85 
82.43 
15.64 
2.01 
13.62 
4 
3 
42 
10 
6 
X 
4.06 
83.00 
14.67 
1.70 
12.97 
5 
3 
42 
10 
6 
0 
4.38 
78.14 
10.00 
2.19 
12.40 
1.27 
11.13 
11013_ 
1 
4 
42 
10 
6 
0 
2.10 
84.54 
11.96 
1.72 
10.23 
2 
4 
42 
10 
6 
1 
2.02 
82.40 
14 56 
1.94 
12.61 
3 
4 
42 
10 
6 
7 
2.71 
84.25 
15.32 
1.88 
13.44 
4 
4 
42 
10 
5 
10 
2.73 
79.70 
13.36 
1.49 
11.86 
5 
4 
42 
10 
6 
3 
2.70 
78.60 
9.20 
1.97 
11.92 
1.29 
10.63 
Table IV contains the data showing the amount of plant food in 
pounds removed per acre when sunflowers were cut for silage. The 
results are given for only the fifth stage, and are representative of the 
amount of plant food removed per acre by sunflowers when harvested 
for silage under field conditions. The results are stated as pounds 
of elements" removed per acre by the different systems of planting, 
basing the calculations on the actual yields obtained. From the 
table it is seen that the yields are quite similar in all the systems 
of plantings, except Plot No. 11008, where the plants were spaced 
24 inches apart in the row. This yield is low and should be attri¬ 
buted to differences in soil and moisture conditions rather than the 
spacing. 
