Irrigation and Drainage 139 
Widtsoe and Stewart! found that although there was 
only a slight increase in the percentage sucrose with the 
water applied up to thirty-five inches, the percentage 
of carbohydrates increased with increased quantities of 
water used. Starch and cellulose, therefore, increased 
with heavier applications. The application of fifty inches 
in every case decreased the sucrose-content. The purity 
was lowest with the smallest quantities of water and was 
highest with intermediate applications up to twenty 
1S ; os we. 60 
/4 2S 
70 
| = 
| S 
2 5 
.“ 
2 8 
Ww 
% ¢ 
Totet weter|| O1)5 115 || 5 || 51] 5 || 10] | 10] | 20] | 0} | 10) | Lot} 25] | 151 | 15] | 20] Teer woter 
Stega gs * e 
yl4] lee 43 
SLOtt test te 3/8 
Ss a aT, 
3 2 Bs “ 2 $ 
FE] 1H (iss re: 
AB. Percent Sucrose B Percent Purty 
Fie. 17. — Effect of irrigation at different stages on percentage of 
sucrose and purity. Utah. 
inches. The percentage of sucrose and the purity were 
higher in October than in September. 
Investigations made by the author? on the effect of 
irrigation water on the quality, size, and shape of beets 
1 Widtsoe, J. A., and Stewart, R., Utah Exp. Sta., Bul. No. 120. 
2 Harris, F. S., Utah Exp. Sta., Bul. No. 156. 
