"The effect of urea with urease inhibitors and urea on yield and nitrate content in potato tubers"@en . "Elzner, Petr" . . "[3509821C255C]" . . . . "J\u016Fzl, Miroslav" . "61" . . "The effect of urea with urease inhibitors and urea on yield and nitrate content in potato tubers" . . . . "Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis" . "4"^^ . . "7"^^ . "Dr\u00E1pal, Karel" . . "4"^^ . "10.11118/actaun201361061613" . . "The three-year field trial was established on two localities -- \u017Dab\u010Dice and Vale\u010Dov in 2010--2012. Seven variants of nitrogen fertilization in four replications have been involved in this experiment. The two varieties with different lengths of vegetation periods have been chosen for the experiment -- the early variety Karin and the mid-early variety Red Anna. In all cases, samples for the yield and qualitative analyses have been taken according to the phenological phase -- the beginning of physiological maturity. The obtained results show that the highest average yield has been achieved in the variant of 100% of urea, the yield of this variant was statistically significantly higher than the yield of the other variants of fertilization. Variants treated by urea without the urease inhibitor reached an average yield of 37.62 t. No statistical significance was found between 2010 and 2011, but in contrast to the year 2012, a statistical significance in regard to the nitrate content was established."@en . "43210" . . "6" . . . . "CZ - \u010Cesk\u00E1 republika" . "1211-8516" . "RIV/62156489:43210/13:00211388!RIV14-MZE-43210___" . "71822" . . "The effect of urea with urease inhibitors and urea on yield and nitrate content in potato tubers" . . . "P(QI101A184)" . "urea; yield; nitrate content; UREA stabil; potato"@en . "Mare\u010Dek, V\u00EDt" . . "The three-year field trial was established on two localities -- \u017Dab\u010Dice and Vale\u010Dov in 2010--2012. Seven variants of nitrogen fertilization in four replications have been involved in this experiment. The two varieties with different lengths of vegetation periods have been chosen for the experiment -- the early variety Karin and the mid-early variety Red Anna. In all cases, samples for the yield and qualitative analyses have been taken according to the phenological phase -- the beginning of physiological maturity. The obtained results show that the highest average yield has been achieved in the variant of 100% of urea, the yield of this variant was statistically significantly higher than the yield of the other variants of fertilization. Variants treated by urea without the urease inhibitor reached an average yield of 37.62 t. No statistical significance was found between 2010 and 2011, but in contrast to the year 2012, a statistical significance in regard to the nitrate content was established." . "RIV/62156489:43210/13:00211388" . . "The effect of urea with urease inhibitors and urea on yield and nitrate content in potato tubers"@en . .