Colorado Experiment Station 
18 
SAMPLES TAKEN 7 JUNE, 1913. 
Section 
1700 
Section 1800 
Section 1900 
Nitric 
Nitric 
Nitric 
Nitrogen 
Nitrogen 
Nitroge 
Depth 
Moisture 
Parts per 
Moisture 
Parts per 
Moisture 
Parts pe 
Percent 
Million 
Percent 
Million 
Percent 
Million 
0 
to 
6 
inches.... 
12.51 
8.30 
10.77 
9.93 
11.06 
9.66 
7 
to 
12 
inches.... 
16.17 
6.94 
16.01 
9.93 
16.08 
7.48 
13 
to 
.24 
inches.... 
15.36 
3.13 
15.36 
• • • • 
15.59 
2.86 
25 
to 
36 
inches.... 
14.01 
1.22 
14.96 
1.77 
15.25 
1.22 
37 
to 
48 
inches.... 
13.96 
0.68 
14.82 
0.95 
13.74 
0.68 
0 
to 
6 
inches.... 
11.33 
7.48 
10.36 
8.30 
10.97 
8.30 
7 
to 
12 
inches.... 
16.87 
8.84 
15.98 
9.11 
15.81 
5.58 
13 
to 
24 
inches.... 
15.99 
3.40 
15.42 
4.49 
15.53 
1.77 
25 
to 
36 
inches.... 
15.03 
1.22 
15.28 
1.50 
14.49 
0.95 
37 
to 
48 
inches.... 
15.67 
1.22 
14.50 
0.95 
14.52 
0.95 
We began irrigating five days after the above samples were 
taken. The water was applied at this time, not because the plants 
showed any need of it, but because they were for the most part in 
boot and we deemed this an opportune time to apply it. 
SAMPLES TAKEN 24 JUNE, 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.... 11.27 
4.49 
11.33 
7.07 
11.84 
2.86 
7 
to 
12 
inches.... 14.44 
2.31 
15.71 
4.90 
15.14 
1.77 
13 
to 
24 
inches.... 14.89 
• 0.82 
15.OS 
3.54 
15.25 
0.68 
25 
to 
36 
inches.... 15.08 
0.00 
15.20 
2.86 
15.57 
0.68 
37 
to 
48 
inches.... 14.92 
0.68 
15.24 
1.16 
16.04 
0.54 
0 
to 
6 
inches.... 14.07 
7.48 
13.90 
6.26 
12.42 
2.72 
7 
to 
12 . 
inches.... 16.73 
3.67 
16.92 
4.35 
15.49 
1.50 
13 
to 
24 
inches.... 15.90 
1.77 
16.53 
2.18 
15.90 
0.68 
25 
to 
36 
inches.... 15.99 
1.22 
15.59 
2.18 
16.03 
0.68 
37 
to 
48 
inches.... 17.63 
1.50 
16.55 
1.16 
16.92 
0.54 
SAMPLES TAKEN 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.... 7.30 
6.12 
8.16 
5.98 
8.29 
11.15 
7 
to 
12 
inches.... 13.80 
3.13 
14.05 
3.26 
13.71 
4.90 
13 
to 
24 
inches.... 14.17 
1.50 
14.57 
2.72 
14.79 
• • • • 
25 
to 
36 
inches.... 15.57 
0.95 
14.85 
2.18 
14.87 
1.90 
37 
to 
48 
inches.... 14.06 
0.95 
14.49 
1.16 
14.46 
1.63 
0 
to 
6 
inches.... 9.49 
8.30 
10.87 
10.34 
7.14 
5.44 
7 
to 
12 
inches.... 15.05 
3.67 
15.81 
8.43 
12.69 
1.90 
13 
to 
24 
inches.... 14.67 
1.77 
15.24 
2.18 
13.99 
1.16 
25 
to 
36 
inches.... 14.62 
1.50 
15.46 
1.90 
11.07 
1.16 
37 
to 
48 
inches.... 15.57 
1.22 
15.68 
1.90 
14.80 
0.82 
'I'he total nitrogen 
in these 
sections 
of land 
was all 
redeter- 
mined on i July, 1913. 
