776 
Journal of Agricultural Research 
Vol. XXIV. No. 9 
sun after cutting, hence they represent the amount of moisture present 
imrnediately at the time of cutting. In the general farm practice of 
siloing sunflowers there is usually a loss of a few per cent of moisture by 
the slight wilting of the plants which takes place during the time of 
cutting and hauling to the silage cutter. The plants cut at this last stage 
of maturity were siloed in the large experiment station silos and produced 
excellent silage. 
COMPOSITION or SUNFLOWEJRS IN 1921 
Additional work was carried on in 1921 on sunflowers planted singly 
and in hills at different distances apart in the row. The different distances 
apart in the rows selected were 8, 24, and 42 inches. In the hill system 
of planting there were one, two, three, and four stalks to the hill. All 
hills were planted 42 inches apart in the row. In both the drilled and 
hill systems the rows were 42 inches apart, this being the width of the 
planter. 
The results of the analyses of the five stages of plants are given in 
Table V. All results except acre yield are given on the anhydrous basis. 
In comparing the different systems of planting, 8, 24, and 42 inches 
apart in the row, and the hill systems, one, two, three, and four plants in 
the hill, it is noticeable that the 8-inch spacings produced the highest 
yield of all. This system is closely followed by the hill system of planting 
where three stalks were allowed to grow in each hill. 
ANHYDROUS MAT^RIAU 
The same conclusions as those found in 1920 are drawn when the 
amount of anhydrous material is considered. The 8-inch spacing is high¬ 
est in amount with the three stalks in a hill system closely following. 
Very little distance is noted in any of the other systems of planting. 
CRUDE PROTEIN 
Crude protein gradually decreases as the sunflowers become more ma¬ 
ture. The amount of protein is quite similar for all systems of plantings, 
averaging between 9 and 10 per cent in the final stages, the only exception 
to this being the four stalks in a hill system, which shows only 7.98 per cent 
crude protein in the final stage analyzed. 
CRUDE TIBER 
It is a noticeable fact that crude fiber increases up to the fourth stage, 
then decreases somewhat in the final stage examined. This fact holds 
true in both 1920 and 1921, with the exception of the 8-inch spacings 
grown in 1921. 
ether extract 
Ether extract is considerably higher in the last two than in the first 
three stages analyzed. 
