Deterioration Sugar Beets Due to Nitrates 
53 
ANALYSES OF SOIL EXPERIMENTAL PLOT, ROCKY FORD, COLO. 
Plot 38—Sampled 20 July 1911. 
XXVIId 
XXVIIe 
XXVIIf 
First foot 
Second foot 
Third foot 
Percent 
Percent 
Percent 
Insoluble . 
58.983 
47.486 
48.168 
Silicic acid . 
10.645 
16.214 
16.812 
Sulfuric acid. 
0.213 
1.826 
1.689 
Phosphoric acid. 
0.201 
0.201 
0.166 
Chlorin . 
0.034 
0.029 
0.026 
Carbonic acid . 
3.340 
3.796 
3.254 
Potassic oxid . 
0.813 
0.930 
0.958 
Sodic oxid . 
0.608 
0.810 
0.996 
Calcic oxid . 
5.310 
6.865 
6.190 
Magnesic oxid. 
1.619 
1.693 
1.708 
Ferrous oxid . 
0.760 
0.378 
0.307 
Ferric oxid . 
4.581 
4.818 
4.922 
Aluminic oxid . 
6.100 
6.037 
7.080 
Manganic oxid . 
0.155 
0.265 
0.255 
Water at 100° C. 
3.049 
4.052 
3.640 
Ignition . 
2.938 
3.956 
3.146 
Sum. 
99.349 
99.384 
99.317 
Ogygen equi. to chlorin. 
0.008 
0.007 
0.006 
Total . 
99.341 
99.377 
99.311 
Total nitrogen . 
0.0960 
0.0710 
0.0480 
Humus . 
0.9500 
0.6500 
0.5500 
Humus nitrogen in soil. 
0.0460 
0.0330 
0.0360 
Nitrogen in humus. 
' 4.8420 
5.0770 
6.5450 
Humus N. in total N. 
47.9200 
46.4800 
75.0000 
Nitric nitrogen . 
0.0007 
0.0001 
0.0001 
Water-soluble in soil. 
0.4180 
3.3850 
3.6550 
Sulfuric acid in water-soluble... 
Not det’d 
54.3100 
53.8600 
Calcic oxid in water-soluble.... 
Not det’d 
28.8400 
25.3080 
