37 



chemical analyses of these beets, the reader is referred to the report of 

 the Chemical Department, written by Prof, Harcourt, in the Report 

 portion of this bulletin. 



Some of the varieties of sug-ar beets have been grown at the Col- 

 lege in uniform tests for eleven years in succession, the average results 

 of the tests for the eleven years give us the following yields per acre 

 for the different varieties: Red Top, 20.7 tons; Lane's Improved, 20 

 tons; White Silesian, 19.7 tons; White French, 19. i tons; Champion, 

 18.9 tons; Red Skinned, 18 tons; Kleinwanzlebener, 17.5 tons; and 

 Improved Imperial, 15 tons. In the average results for nine years, 

 three other varieties have given the following average yields per acre : 

 New Danish Improved, 22.6 tons; Jersey, 20.3 tons; and French Yel- 

 low, 18. 1 tons. 



Planting Sugar Beets at Different Distances Between the 

 Drills. For three years in succession, an interesting experiment 

 has been conducted in planting sugar beets at different distances 

 in the rows. A comparison of nine different distances between the 

 rows was made. Seven rows were sown at each distance apart. At 

 the time of harvest, however, the two outside rows of each plot were 

 discarded, and only the five inner rows were used in determining the 

 comparative yields. The plants were thinned when very young, and 

 were allowed to remain seven inches apart in the rows. Flat cultiva- 

 tion was used throughout. The experiment was conducted in dupli- 

 cate, the Kleinwanzlebener variety being used in each of the tests. The 

 average results of three years' tests in average weight per root, yield 

 of tops per acre, and yield of roots per acre, are here presented : 



No. 



Distances. 



Average of six tests. 



It will be observed that the average results show regularity 

 throughout. As the distance between the rows increased, there was a 

 gradual increase in the comparative size of the individual roots, but a 

 decrease in the yield of roots per acre. The roots which were placed in 

 rows 18 inches apart, which is usually the distance recommended for 

 the growing of beets for sugar production, produced an average of 

 2o|^ tons of roots per acre. Some people think that larger yields can 

 be obtained by having the rows of sugar beets 28 to 30 inches apart. 



