Comparison of different sugar beet varieties by yields and harvest losses
2001
Sarec, O. | Janousek, J. | Sarec, P. (Ceska Zemedelska Univ., Praha (Czech Republic). Katedra Vyuziti Stroju)
For 34 sugar beet varieties, the following items were measured and calculated: biological yield, crops number per 1 square m, sugar content of beet, real yield harvested by Holmer, polarisation sugar yield, losses connected with not dug up heads and with heads left in the field, total losses, and sales revenue per hectare. In the year 2000, harvest conditions were good thanks to optimum soil moisture. Only the field's surface was moister, i. e. 25% of the soil moisture, which permitted the Holmer harvester to go at only 4.5 km/hod. Another reason for such a low operational speed was a high sugar beet yield. The Cortina variety attained the highest yield, i. e. 76.63 t/ha with sugar content at 17.15%, and was followed by the Extrema variety that reached 73.28 t/ha with the sugar content at 16.85%. Thus the first one gave sales revenue of 79.063 CZK per ha. The Format variety's losses were the lowest, i. e. 0.8%. On the opposite, the highest loses were given by the Stru variety, i. e. 4.1%. This represents the difference of 3,300 CZK per one hectare
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