Published in Scientific Papers. Series A. Agronomy, Vol. LVIII
Written by Mladen ALMALIEV, Krasimir TRENDAFILOV, Stefka TODOROVA
In condition of combined field experiment was studied the influence of liming with Ca(OH)2 at rates of 1.0, 2.5 and 5.0t/ha on the input of calcium and magnesium in the grapes of fertility vines from varieties Sauvignon Blanc,Chardonnay, Cabernet Sauvignon and Merlot planted on Chromic luvisol. Samples were collected in two consecutiveyears. In the first year of the study was not found statistically proven variation of the Ca content in the composition ofthe fresh grape mass. The available Ca amount in grapes in ameliorative lime rate of 5.0 t/ha was lower compared tothat what was found for the lower ameliorative lime doses. About magnesium was found statistically proven exceed atthe variants with liming, compared to the variants without liming. Overall white varieties during the first yearassimilated more Ca amount compared to the red varieties. According to Mg this difference was insignificant. Thedifferences between limed varieties and the control variant in the second year of the study according to the Ca contentin the grape were statistically proven at level of probability 95%.
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calcium
