40 The Colorado Experiment Station 
rado, they are the amount of potassic oxid in the beet, 0.25507 per¬ 
cent in this and 0.25 to 0.56 in Colorado beets, and the ratio of the 
calcic to the magnesic oxid, this being about 1 to 2J/2. The Experi¬ 
ment Station at Lauchstaedt gives 0.17948 percent as the average 
percentage of potash for seven years for beets grown with complete 
fertilizers and it is essentially the same for beets grown without fer¬ 
tilization, 0.16959 percent. The sample from Michigan and also 
that from Fort Collins used as provisional standards show the same 
peculiarities of composition. The sugar content in these is 15.3 and 
18.3, the pure ash in the beets 0.49300 and 0.60887, the phosphoric 
acid 0.062 and 0.076, potassic oxid 0.26382 and 0.31690, the nitric 
nitrogen 0.0030 and 0.0009, the injurious ash per 100 sugar 1.94476 
and 2.19672, the ratio of the proteid nitrogen to the total is 53.7 
and 41.9. The ratio of calcic to magnesic oxid is approximately 
9:15 and 7:13. 
According to these criteria our Montana sample alone equals 
or excells in quality No. VI of Andrlik’s series. His No. VI con¬ 
tains for each 100 pounds of sugar 4.0 parts of injurious nitrogenous 
compounds (injurious nitrogen x 10) and 1.94 parts of injurious 
ash. The Montana sample contains 0.17 part injurious nitrogen 
and 1.67 parts of injurious ash per 100 of sugar, while the Michigan 
beets contain 5.13 parts injurious nitrogenous compounds and 1.94 
parts injurious ash, and the Fort Collins beets contain 6.3 parts in¬ 
jurious nitrogenous compounds and 2.2 injurious ash. I do not 
know how much molasses these beets produced or any of the details 
3 ^^ ked in the factory. We cannot, however, so far 
as I see, hope to obtain any better standards for our beets than these. 
We took three sets of samples during the season of 1910, 23 
Sept., 11 Oct., and 3 Nov., in order to follow the development of 
the beet so far as samples taken at such intervals might indicate it. 
Our battery experiments with these beets were made Nov. 10-16, 
1910. 
There are several classes of beets represented: First, such as 
were grown on ordinary, good soil, without the addition of any 
fertilizers; second, such as were grown on good soil with the addi¬ 
tion of the ordinary fertilizers in various quantities and in different 
combinations; third, such as were grown on good soil with the 
application of different quantities of sodic nitrate; fourth, such as 
were grown on soil in which excessive quantities of nitrates had 
developed. As the land on which the fourth class was grown was 
known to us to be bad we made some experiments in the way of 
remedial measures. There were applied to different portions of it 
superphosphate, muriate of potash and sodic chlorid—so there are 
four sub-series under this one, i. e., one series corresponding to each 
of these fertilizers and a check series. Fifth: Beets grown with 
