A Study ot Codorado Wheat 
21 
i 
Each of the samples in these series was made up of three sub¬ 
samples. The accumulation of nitric nitrogen during the period of 
fallow is very evident. The facts stated in Colorado Bulletin 205, 
pp. 36 and 37, regarding the effect of fallowing upon the prevalence 
of yellow-berry in wheat, taken in connection with the demon¬ 
strated effects of nitrates are very suggestive and interesting. The 
following samples were taken in the same manner as the preceding 
ones, but in a line running lengthwise through the middle of the 
plots. 
SAMPLES TAKEN WITHIN THE PLOTS 1 JULY", 1913. 
Section 
1700 
Section 1800 
Section 1900 
Nitric 
Nitric 
Nitric 
Nitrogen 
Nitrogen 
Nitrogen 
Depth 
Moisture 
Parts per 
Moisture 
Parts per 
Moisture 
Parts per 
Percent 
Million 
Percent 
Million 
Percent 
Million 
0 
to 
G 
inches.. 
. 14.03 
2.72 
12.79 
2.99 
12.51 
3.13 
7 
to 
12 
inches.. 
. 14.36 
1.22 
14.63 
2.58 
14.49 
1.90 
13 
to 
24 
inches.. 
. 14.95 
0.68 
15.16 
0.68 
15.22 
0.54 
25 
to 
36 
inches.. 
. 14.95 
0.39 
15.29 
0.39 
16.07 
0.27 
3 7 
to 
48 
inches.. 
. 15.67 
0.27 
15.84 
0.27 
15.75 
0.27 
0 
to 
G 
inches.. 
. 12.57 
4.76 
12.24 
.... 
15.06 
3.40 
7 
to 
12 
inches.. 
. 14.43 
2.04 
14.34 
2.18 
16.47 
1.22 
13 
to 
24 
inches.. 
. 14.39 
0.95 
14.63 
1.16 
15.76 
0.68 
25 
to 
3G 
inches.. 
. 14.87 
0.95 
14.75 
1.09 
15.85 
0.54 
37 
to 
48 
inches.. 
. 17.77 
0.68 
16.27 
• • • • 
16.33 
0.54 
SAMPLES TAKEN 
WITHIN 
THE PLOTS 14 JULY, 1913. 
Section 
1700 
Section 1800 
Section 1900 
Nitric 
Nitric 
Nitric 
Nitrogen 
Nitrogen 
Nitrogen 
Depth 
Moisture 
Parts per 
Moisture 
Parts per 
Moisture 
Parts per 
Percent 
Million 
Percent 
Million 
Percent 
Million 
0 
to 
6 
inches.. 
9.16 
1.02 
9.51 
3.26 
8.30 
2.72 
1 
to 
12 
inches.. 
. 10.47 
0.00 
10.69 
1.09 
9.75 
1.09 
13 
to 
24 
inches.. 
. 11.62 
0.00 
10.38 
1.09 
10.17 
1.16 
25 
to 
36 
inches.. 
. 12.76 
0.00 
11.72 
1.09 
10.92 
1.63 
37 
to 
48 
inches. . 
. 13.31 
0.00 
13.05 
0.82 
12.22 
0.82 
0 
to 
6 
inches.. 
7.99 
2.31 
8.73 
3.94 
8.83 
3.54 
7 
to 
12 
inches.. 
9.66 
1.02 
10.28 
1.63 
10.26 
3.81 
13 
to 
24 
inches.. 
. 10.20 
1.09 
9.90 
1.63 
9.70 
1.16 
25 
to 
3 G 
inches.. 
. 11.93 
0.95 
11.88 
1.09 
11.18 
1.09 
37 
to 
4S 
inches.. 
. 14.22 
0.54 
13.10 
0.39 
13.37 
0.68 
SAMPLES TAKEN WITHIN THE PLOTS 1 AUGUST, 1913 
Section 
1700 
Section 1800 
Section 1900 
Nitric 
Nitric 
Nitric 
Nitrogen 
Nitrogen 
Nitrogen 
Depth 
Moisture 
Parts per 
Moisture 
Parts per 
Moisture 
Parts per 
Percent 
Million 
Percent 
Million 
Percent 
Million 
0 
to 
6 
inches.. 
. 13.76 
4.35 
14.07 
2.99 
14.59 
2.99 
rr 
( 
to 
12 
inches.. 
. 14.40 
2.99 
16.07 
2.99 
16.14 
2.18 
13 
to 
24 
inches.. 
. 11.23 
1.09 
3 6.02 
0.95 
16.28 
0.82 
25 
to 
36 
inches. . 
. 12.46 
0.82 
15.98 
0.54 
16.33 
0.82 
37 
to 
48 
inches.. 
. 12.50 
0.54 
16.15 
0.27 
15.52 
0.27 
0 
to 
6 
inches.. 
. 13.76 
4.49 
12.82 
5.17 
13.51 
2.45 
7 
to 
12 
inches .. 
. 14.59 
3.26 
16.16 
2.72 
16.86 
1.63 
13 
to 
24 
inches . . 
. 11.90 
1.16 
16.83 
1.09 
16.20 
0.54 
£5 
to 
36 
inches . . 
. 11.06 
1.09 
16.13 
0.82 
15.70 
0.27 
37 
to 
48 
inches .. 
. 13.14 
0.54 
16.04 
0.54 
16.53 
0.54 
