3^ 
Colorado Experiment Station 
TOTAL AND PROTEID NITROGEN IN GROWING WHEAT PLANT. 
Total Nitrogen Proteid Nitrogen 
Crop 
r 
Percent 
Percent 
L 913 
Fertilizer per acre 
Stems 
Leaves 
Heads 
Stems 
Leaves 
Heads 
7 
July 
120 
lbs. nitrogen 
0.4304 
0.9302 
0.7670 
0.2579 
0.6767 
0.4972 
7 
July 
60 
lbs. phosphorus 
0.3420 
0.8214 
0.6990 
0.2007 
0.5788 
0.4320 
rr 
( 
July 
200 
lbs. potassium 
0.3182 
0.8282 
0.7194 
0.1926 
0.5462 
0.4537 
r* 
i 
July 
None 
0.3318 
0.8146 
0.7058 
0.2062 
0.5843 
0.4483 
7 
July 
80 
lbs. nitrogen 
0.3896 
1.3110 
0.7534 
0.2742 
0.9114 
0.5299 
7 
July 
40 
lbs. phosphorus 
0.3250 
0.9942 
0.6990 
0.2361 
0.7583 
0.4755 
7 
July 
150 
lbs. potassium 
0.2866 
0.8078 
0.6922 
0.2035 
0.5788 
0.4320 
7 
July 
None 
0.3386 
1.0186 
0.6922 
0.2388 
0.6441 
0.4863 
13 
July 
40 
lbs. nitrogen 
0.3699 
0.7725 
0.9153 
0.2633 
0.4972 
13 
July 
20 
lbs. phosphorus 
0.3019 
0.5957 
0.8405 
0.1599 
0.3939 
0.6060 
13 
July 
100 
lbs. potassium 
0.2666 
0.5005 
0.6773 
0.1708 
0.3231 
0.5788 
13 
July 
None 
0.2910 
0.5141 
0.8473 
0.1953 
0.3830 
0.5897 
21 
July 
120 
lbs. nitrogen 
0.3645 
0.6909 
0.9289 
0.2415 
0.4814 
0.6387 
21 
July 
60 
lbs. phosphorus 
0.2366 
0.6093 
0.8065 
0.1436 
0.4101 
0.5679 
21 
July 
200 
lbs. potassium 
0.2149 
0.4529 
0.8541 
0.1505 
0.3993 
0.5843 
21 
July 
None 
0.2856 
0.5821 
0.8065 
0.2171 
0.3830 
0.5679 
25 
July 
SO 
lbs. nitrogen 
0.4733 
1.2893 
1.0037 
0.4762 
0.7311 
25 
July 
40 
lbs. phosphorus 
0.2965 
0.8337 
0.8540 
0.2307 
0.6332 
0.6550 
25 
July 
150 
lbs. potassium 
0.2666 
0.8269 
0.8813 
0.1926 
0.6115 
0.6931 
25 
July 
None 
0.2421 
0.5685* 
0.8133 
0.1768 
0.4265 
0.6985 
29 
July 
40 
lbs. nitrogen 
0.3237 
0.9357 
1.0105 
0.2307 
0.2222 
0.7420 
29 
J uly 
20 
lbs. phosphorus 
0.2312 
0.6773 
0.9629 
0.7475 
29 
July 
100 
lbs. potassium 
0.1986 
0.5889 
0.9289 
0.1382 
0.4918 
0.6659 
29 
July 
None 
0.2421 
0.7929 
0.8825 
0.1550 
0.7094 
0.6767 
4 
Aug. 
120 
lbs. nitrogen 
0.2611 
1.5953 
1.5001 
0.1718 
1.1446 
4 
Aug. 
60 
lbs. phosphorus 
0.2366 
1.3023 
0.1355 
1.0358 
4 
Aug. 
200 
lbs. potassium 
0.1 
700 
1.3382 
0.0947 
0.8508 
4 
Aug. 
None 
0.2149 
1.4389 
1.0739 
5 
Aug. 
80 
lbs. nitrogen 
0.3155 
11.2961 
0.2035 
1.0140 
5 
Aug. 
40 
lbs. phosphorus 
0.1809 
1.2621 
0.1055 
1.0031 
5 
Aug. 
100 
lbs. potassium 
0.1958 
1.3573 
0.1164 
1.0847 
5 
Aug. 
None 
0.2339 
1.1193 
0.13 
27 
0.8889 
*This determination was repeated with closely agreeing results. 
The ratio of the green parts and also the dry matter in the stems 
and heads have been given in previous tables. No attempt has 
been made in these data to find the relative amount of kernels and 
their composition, as the dry weight of the wheat as threshed and 
the weight of the grain, while belonging* to another step in the in¬ 
vestigation, was considered sufficient for our purposes. Had our 
time permitted it, there is no question but that it would have been 
of interest to establish the relative weights of chaff and grain in 
at least, the last two samples, for these plants were fully matured. 
The leaves had dried to such an extent that it was not longer 
