154 The Colorado Experiment Station 
beets of the eleven samples examined with possibly one partial ex¬ 
ception. 
I was and am still of the opinion that the inferiority of nitrate 
beets is due largely to their immaturity at the time of harvesting. 
This of course does not explain the depression of the phosphoric acid 
in the beet which certainly takes place. I do not know the function 
of phosphoric acid in the first year’s growth of the beet except that 
the application of superphosphate is credited with inducing an early 
ripening of the beet. We saw no proof of it in these experiments 
but it was on this theory that I applied superphosphate at the rate of 
1,000 pounds per acre to a portion of our field of very bad land. We 
will compare the beets from the first and third sections of this plot 
with those from the adjoining sections of the check plot. In the 
lowest part of the third section the water plane was five feet below 
the surface. The surface of the first sections was eighteen feet 
higher than the point where this boring was made. The figures for 
the beets from the check plot will be given first. First section: 
Weight of beets, 788.1-751.3. Sugar, 13.2-10.9. Dry substance, 
21.0-17.6. Pure ash in beets, 0.942-0.941. Phosphoric acid, 
°- 0 3^75* 0 -°48i6. Chlorin, 0.15188-0.12032. Total nitrogen, 
0.2493-0.25860. Nitric nitrogen, 0.01936-0.04982. Injurious ash 
per 100 sugar, 5.6292-7.1557. Injurious nitrogen per 100 sugar, 
1.02880-1.41290. Third Section: Weigh of beets, 569.9-708.7. 
Sugar, 12.1-10.2. Dry substance, 18.9-18.0. Pure ash in beets, 
1.122-1.0644. Phosphoric acid, 0.03109-0.02732. Chlorin, 
0.23 1 34-0.20047. Total nitrogen, 0.23345-0.24350. Nitric nitro¬ 
gen, 0.05370-0.07260. Injurious ash per 100 sugar, 7.92850- 
9.04210. Injurious nitrogen per 100 sugar, 1.04790-1.78290. The 
middle section showed no benefit from the application of this amount 
of superphosphate. The same results varying slightly in their 
measure was obtained with potassic chlorid and sodic chlorid. These 
chlorids, 40c pounds per acre, did not affect the amount of chlorin 
taken up. In five out of six cases the chlorin is lower in the samples 
grown with these substances than in the samples from the check. 
The results obtained with mineral manures are not promising. 
The general results obtained with stockyard or farmyard manure 
are much more so than those obtained with the mineral manures. 
We obtained good beets with green manures but as I have already 
explained I am unwilling to accept the results obtained without repe¬ 
tition. The beets, however, grown with the mustard and wheat, 
were excellent in every respect except in regard to the weight of the 
crop—omitting this factor we have excellent beets, scarcely any 
better. The beets grown on the wheat ground are given first, then 
those grown on the mustard land. Sugar 18.5-17.3. Dry sub¬ 
stance 24.4-24.4. Phosphoric acid 0.06711-0.07439. Chlorin 
