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Reaction of starch processing potatoes on application of Lyckeby concentrate fertilizer
 DOUBEK, Martin
Lyckeby concentrate is a new organic fertilizer made from waste tuber juice in the production of potato starch. The aim of the diploma thesis was to evaluate the effect of this fertilizer on selected varieties of starch potatoes. Two varieties Euroresa and Eurostarch were monitored, which are the most cultivated in the company Agrospol, Malý Bor a.s. The fertilizer was applied in two variants. The first variant was fertilized 2 t.ha-1 before planting and the second variant had a dose of 4 t.ha-1 before planting. It included an unfertilized control plot. In the experiment, the yield of tubers and starch, the starch content, the average weight of tubers, the average number of tubers and stems per tuft and the nitrogen content were evaluated. In the monitored experiment, both fertilization variants showed an increased yield of tubers and an increased yield of starch. The increase in tuber yield was influenced by the average increase in tuber weight and number. The Euroresa variety showed an increase in starch yield per hectare of 6.53% compared to the control. The Eurostarch variety had an increase in starch yield per hectare of up to 23.74% compared to the control.
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