A Study of Colorado Wheat 
13 
falls from 30 to 40 loaves per barrel behind Kansas and the best Min¬ 
nesota flours. 
This seems to be contradictory to what we should expect, as our 
summers are usually dry and the days hot. Our spring wheat matures 
in from 100 to 128 days from planting. 
We shall present in the following pages the analytical results ob¬ 
tained in the study of the wheats grown in the seasons of 1913, 1914. 
and 1915. 
The varieties grown were Defiance—a wheat originated at this 
station by the late Prof. A. E. Blount—Red Fife, and Kubanka. The 
seed of the last two varieties was obtained from the South Dakota 
Experiment Station. 
The three seasons were very dilterent, and the data pertaining to 
temperature and rainfall do not convey a very definite idea of the 
weather conditions that prevailed; nevertheless, I shall give them, 
as furnished to me by Mr. R. E. Trimble, who is in charge of such ob- 
servations 
1913 
April 
May 
June 
July 
August 
Mean Air Temperature. 
.46.1 
54.8 
63.2 
66.8 
69.8 
Mean Soil Tern. 3".. :. 
.46.2 
58.7 
67.9 
71.7 
74.4 
Mean Soil Tern. 6 ". 
.46.3 
58.8 
67.9 
72.6 
75.2 
Rainfall (inches) . 
. . . . 1.49 
2.09 
0.15 
2.63 
0.41 
Cloudy or partly cloudy days. 
17 
21 
19 
18 
11 
1914 
April 
May 
June 
July 
August 
Mean Temperature of Air. 
.44.75 
54.56 
63.58 
68.30 
66.95 
Rainfall inches . 
. 3.23 
2.73 
2.01 
1.68 
1.28 
1915 
April 
May 
June 
July 
August 
Mean Temperature of Air. 
50.35 
59.62 
64.74 
62.77 
Temperature of soil 3 inches A. M. . . . 
.45.25 
48.96 
58.03 
63.30 
61.00 
P. M_ 
.54.62 
59.66 
69.58 
75.10 
72.00 
Rainfall (inches) . 
. 4.01 
3.78 
1.90 
2.12 
Cloudy or partly cloudy days. 
19 
21 
15 
19 
21 
This tabulation gives a record of the rainfall, for instance, as ac¬ 
curately as we can read the pluviometers, or the temperature, as ac¬ 
curately as we can read the thermometers, but it does not give us the 
deciding factors in the development of the wheat. The rainfall up to 
12 June in any of the three years was probably without influence upon 
our crop, as there was at no time a lack of moisture up to this date. 
On 12 and 13 June, we applied, i acre-foot of water. This much was 
necessary, especially in 1913, for with less water we could not get over 
the ground. A few spots which were not covered, owing to the im¬ 
perfect leveling, produced only a very light crop of grain. The rain¬ 
fall in July, 1914, was only 1.68 inches, but 1.45 inches of it fell during 
a very few days late in the month and a very good portion of this 
came in one violent shower, about fourteen days before harvest. This 
