356 
Journal of Agricultural Research 
Vol. VII, No. 8 
were at hand. The ratio varied in the case of the individual soil sam¬ 
ples from 2.0 to 2.7, and the average ratio for the different fields only 
from 2.1 to 2.6. While the ratio tended to be higher in the coarse- 
textured soils there were many exceptions to this generalization. 
Table IX.— Ratio of hygroscopic coefficient to hygroscopic water in air-dried soils from 
typical fields in western Nebraska , May, IQI 2 
Depth. 
Prairies. 
Corn stubble. 
Winter wheat. 
Average 
of all. 
I. 
II. 
III. 
IV. 
V. 
V!. 
VII. 
VIII. 
Foot. 
o-K . 
2. 7 
2.4 
2- S 
2.3 
2. 5 
2. 2 
2. 2 
2. I 
2.4 
K-i . 
2. 7 
2. 4 
2. 6 
2- 5 
2. 6 
2. 2 
2. 2 
2. I 
2.4 
2. 3 
2.4 
2. 7 
2. I 
2. 4 
2.4 
2. O 
2. O 
2.4 
3 . 
2. 7 
2-3 
2. 6 
2. I 
2.4 
2. 2 
2. 2 
2. 2 
2 - 3 
4. 
2. 5 
2. 2 
2* 5 
2. 2 
2. I 
2.4 
2. 2 
2. I 
2.3 
e. 
2. 6 
2. 2 
2. 6 
2. O 
2 . 7 
2. I 
2. 7 
2 . 7 
6. 
2. 6 
. 2. I 
2.3 
2. 3 
2. 5 
2* 6 
2. I 
0 
2. O 
O 
2.3 
Average. 
2. 6 
2.3 
2. 5 
2-3 
2. 4 
2 * 3 
2. I 
2. I 
2-3 
Table X and figure 1 show the concordance of the data on free water, 
using in the one case the computed and in the other the directly deter¬ 
mined hygroscopic coefficients. Whichever set, B or C, is used, the 
same general moisture relations are shown, and for the purposes of the 
Pra[r/e Corn W heat 
Field f F/e/c /2 Field 3 Fields Fieidd Fiefd 6 Field 7 Fieid 8 
t Using determined hyg. coeffs 
c 
► / 
0 0 10 20 c 
> IP 20 _< 
> 4 ? £ 
f 7 i 
? 10 2 
2 _ 5 
1 JO 2 
O 0 JO 20 c 
> JO 20 
/ 
IP 
PI 
ii 
II 
1 
1 
* 
m 
1 
L 
1 
- 
2 
r 
_ j 
I. 
1 
l 
fa 
3 
1 m! 
j 
l 
3 
1 
II 
i 
II 
s 
XI 
■ 
H1 
1 
4 m 
i 
4 * 
1 
Ii 
11 
1 
IT 
p| 
_ 
1 
t 
S 
1 
II 
i 
9] 
i 1 
jjL 
: 
if 
1 
f 
* 
6 
i 
p 
Hr 
■D 
11 1 
it 
0 
II 
■J 
j 
Us/ng computed hyg. coeffs. 
/ 
r 
Si: 1 
1 
■ 
■Ii 1 
11 
J 
H 'I 
rw 
* 
2 
r 
||| 
i 
1 
a 
11 
j 
1 ■ 1 
1 
1 JHJ 
3 
1 
i 
§p 
PH 
1 
f 
1 
1 
1 
j 
Jr 
pi, 
Hl 
J' 
r 
Pif 
j 
p 
■lii 
ii 1 
gr 
if 
Hr 
1 
i 
1 
b 
■ill 
■B 
HL 
IlL 
■ 
L egenct: Hyg. moisfure mzm 
Free wafer mtm 
Fig. i.—D iagram showing the amounts of free water at different levels in eight fields, illustrating the 
concordance of the values obtained for the hygroscopic coefficient by calculation from the hygroscopic 
moisture with those directly determined. 
field moisture study they are almost equally satisfactory, but the data 
in C were all at hand a month after the field work had been completed, 
while those in D were not obtainable within half a year without dealing 
with this particular series out of its regular order. 
