Deterioration Sugar Beets Due to Nitrates 63 
The effects of these fertilizers upon the weight of crops, the 
apparent coefficients of purity, and the amount of sugar produced 
have been given on page 19. These plots were harvested during 
the week or ten days subsequent to the taking of these samples and 
there is considerable evidence that marked changes took place in 
some of the plots. The samples from one of the plots, Number 24, 
from which the first sample was taken 6 Sept., showed a fairly uni¬ 
form increase till 11 Oct., when they showed 13.2 and 13.6 percent 
sugar. Five days later a sample showed 15.5 percent. The plot 
was harvested and the beets delivered to the factory 18 Oct. and 
averaged 15.35 percent sugar, apparent purity 84.45. Other plots 
also showed increases, but no other one to such an extent as number 
24. Our samples of 11 Oct. agreed with the factory averages, as 
well as samples of the size taken could be expected to agree, with 
two exceptions. 
A set of eleven samples had already been taken 23 Sept. The 
results obtained by determining the injurious nitrogen in these are, 
with one exception, concordant in showing a great improvement in 
the quality of the beets. One sample shows a very surprising de¬ 
gree of improvement, but the determination of total nitrogen is 
apparently too low, which is mentioned in the tables. The following 
statement of the injurious nitrogenous compounds (injurious N x 
10) in the beets on 23 Sept, and 11 Oct. may serve to indicate the 
changes that took place in the beets during this interval. 
Injurious nitrogenous compounds per 100 of sugar in beets 
grown on the respective plots and sampled on the following dates: 
23 Sept. 1910 11 Oct. 1910 
1 . 7.13 6.20 
2 . 11.50 9.55 
3 . 9.73 5.83 
4 . 6.37 6.57 
5 . 12.75 4.28 
6 . 3.51 3.58 
7 . 6.34 2.73 
8 . 4.84 5.69 
9 . 9.10 3.70 
10. 7.50 7.13 
We see that in one case our results show an increase of 0.85 
part injurious nitrogenous substances for each 100 pounds of sugar. 
This difference may be due to variation in the samples. We further 
see that in Number 5 of the table there was a remarkable improve¬ 
ment. This may be true, it may also be party due to the difference 
in the samples taken and also, which is less likely, to analytical 
errors. 
The beets grown on this land are apparently high in injurious 
ash from 4.1 to 7.7 parts for each 100 of sugar, but this does not 
seem to be due to the action of the fertilizers though the highest 
