74 The Colorado Experiment Station 
taken is only 0.02 percent. The maximum increase in the average 
percentage of sugar in any two pairs of samples is 1.2; which, con¬ 
sidering that there were two pairs of samples from each field, is a 
very small maximum difference. The other two differences were 
0.4 and 0.5 percent. On 23 Sept, the beets in Field 1 had already 
attained an average of 15.45 percent; those in Field 2 increased 
from 13.85 to 15.9 percent, an increase of 2.1 percent. These facts 
indicate that the beets in Field 1, to which 250 pounds of sodic 
nitrate had been applied, were well advanced tow r ard maturity on 23 
Sept. , and as subsequent results showed, had reached their maximum 
by 11 Oct., while those in Field 2, to which 500 pounds of sodic 
nitrate had been applied in two equal portions, were later in matur¬ 
ing than the beets in field one, but had reached their maximum by 
11 Oct. The beets in fields 3, 4 and 5 to which 750, 1,000 and 1,250 
pounds in applications of 250 pounds each had been applied, were 
maturing only very slowly. The final laboratory samples were 
taken 3 Nov. and the results obtained with them are given in the 
following tables. 
