Properties of Coeorado Wheat 
25 
potash had softened it. We have found this to be the case every 
time in upwards of 90 experiments, which proves that the cause 
of our yellow-berry, which is an extreme case of softening, is 
due to the presence of potash in excess of nitric nitrogen in our 
soil. 
The following analyses represent our own wheats grown in 
these experiments and show, I think, the real quality of Colorado 
spring wheats grown under favorable weather conditions. Each 
analysis given is the average of nine analyses made of different 
samples of the particular kind of wheat. 
WHEATS GROWN WITHOUT THE APPLICATION OP NITRATES 
Crude protein 
Wet gluten 
Dry gluten 
Variety 
Percent 
Percent 
Percent 
Defiance 
11.66 
23.79 
9.77 
Red Fife 
12.63 
27.78 
11.25 
Kubanka 
12.53 
25.91 
10.68 
WHEATS 
GROWN WITH THE APPLICATION OF NITRATES 
Crude protein 
Wet gluten 
Dry gluten 
Variety 
Percent 
Percent 
Percent 
Defiance 
13.94 
30.43 
12.15 
Red Fife 
14.86 
32.78 
12.98 
Kubanka 
14.18 
31.24 
12.56 
These analyses present the clearest and best statement that I 
know of in regard to the quality of our spring wheats. All of the 
wheats produced without the application of the nitrates were soft 
to a greater or less degree and those produced with the application 
of the potash were affected to the greatest extent by yellow-berry, 
and in the cases of the Red Fife and Kubanka, showed lower 
crushing strengths. On the other hand, all of the wheats grown 
with the application of nitrates were free from yellow-berry. The 
grains were smaller, glassy, semi-translucent and sometimes more 
or less shrunken. They would be graded as hard wheats. 
These analyses show that wheats grown with the application 
of nitric nitrogen are richer in crude protein, by about 2.0 percent, 
than the same variety grown under the same conditions of season 
and soil but without the application of nitrates. Further they 
show that both the wet and dry gluten are very materially higher 
than in the same varieties grown without the application of 
nitrates. 
If these analyses be compared with the average given for the 
composition of whole wheat, it will be seen that our Defiance 
grown without the application of nitrates is just about an average 
wheat so far as the crude protein contained is concerned, but a trifle 
below the average in both the wet and dry gluten. The Red Fife 
and the Kubanka grown without the application of nitrates are 
fully up to the average for domestic wheat, which is higher than 
