INDEX 
Page 
Object of this bulletin stated. 3 
Unusual factors involved, alkali, seepage, etc. 4 
General composition of Colorado alkalis. 5 
Height of water-plane in alkali land experimented with. 6 
Salts held in solution in the ground waters. 7 
Conditions in alkali soil experimented with and results. 8 
Effects of alkalis on sugar beets formulated. 9 
Causes for general opinion relative to effects of seepage and alkali. 11 
Deterioration of beets not caused by alkali. 12 
Questions relative to plant-food furnished by soils. 12 
Results of Mr. Winterhalter’s fertilizer experiments stated. 14 
Mr. Danielson’s conclusions regarding fertilizers stated. 15 
Results of fertilizer experiments of 1909 stated. 1” 
Results of fertilizer experiments of 1910 stated. 19 
Composition of fertilizers used in 1909, 1910. 19 
General results discussed. 20 
Two objectionable properties of our beets stated. 21 
The effects of fertilizers so irregular that results are not conclusive. 22 
Irregularity of fertilizer results not due to different conditions obtaining. . 22 
The cause of deterioration a general one. 23 
Climatic conditions as a factor. 24 
Conditions differ in various sections of the State. 24 
Effects of leaf-spot, Cercospora beticola . 25 
The results of observations not satisfactory. 28 
The amount of nitric nitrogen present in our soils. 29 
Reasons why seepage, alkali, action of fertilizers, etc., have been discussed 31 
Question presented more explicitly stated. 32 
Experiments with application of nitrates, 1910. 33 
Experiments with superphosphates, etc., to obviate bad effects of nitrates.. 33 
Analyses I to VI quoted from Andrlik to show composition of Austro-Hun¬ 
garian beets. 35 
Standards of quality adopted.-. 36 
Injurious ash and injurious nitrogen defined. 36 
Description of Montana sample. 38 
Classes of beets represented by the samples of 1910... 40 
Complicated conditions render results difficult to interpret. 41 
The difference in amount of nitrate present in fallow spots and cropped 
land . 42 
Reets grown without application of nitrates may have had an injurious 
supply.•*. 43 
Consideration of beets grown on good land without fertilizers. 43 
Beets in 1911 of better quality than in previous years. 44 
The water supply important. 44 
Beets grown on virgin soil rich in ash. especially in chlorin. 49 
Quality of beets grown on virgin soil. 49 
Effects of nitrates on chlorin content of beets. 50 
Quality of beets grown on College Experiment Farm without fertilizers in 
1911 . 50 
Beets from Rocky Ford grown on good land without fertilizers. 50 
Chemical composition of Rocky Ford soil check plots of land on which fer¬ 
tilizer experiments were made. 51 
Beets from Rocky Ford, Analyses XVIII, XIX and XX. 56 
Good beets grown in various parts of the State—Location not necessarily 
cause of low quality. 57 
Ratio of nitric to total nitrogen in beets grown on good land without fer¬ 
tilizers . 
The effects of fertilizers on the composition of the sugar beet in our soils 59 
Improvement in quality of beets as shown by depression of injurious nitro¬ 
gen between 23 Sept, and 11 Oct.. 1910. 63 
The effects of fertilizers upon the injurious ash in beets irregular.64, 68 
