Influence of organic fertilizer rosasoil on yield and technological characteristics of grapes of the riesling italian variety in the stage of full fecundity in the vineyard district of vršac

Abstract

On the basis of two-year testing of the influence of organic fertilizer Rosasoil on yield and technological characteristics of the Riesling Italian variety in full fecundity in the conditions of the vineyard district of Vršac, the following can be concluded: 1. Climate and soil are favorable for growing grapevine in the wine-producing region of Vršac. 2. Average yield of grapes varied, ranging from 4.5 kg/trunk (on control) to 5.29 kg/trunk (variant with 360 g of fertilizer per plant). 3. Average yield of grapes varied from 14.998 kg/ha (on control) to 17.622.08 kg/ha, (variant with 360 g Rosasoil per plant). 4. Average content of sugar in must varied from 16.39% (on control) to 17.9% (variant with 360 g of fertilizer/plant). 5. Average content of total acids in must varied from 7.6 g/l (variant with 300 g /l of fertilizer per plant) to 7.72 g/l (on control). On the basis of results achieved, it can be concluded that application of organic fertilizer Rosasoil was successful, so this fertilizer can be recommended both for the vineyard district of Vršac, and for application in other vineyard districts in Yugoslavia.

U radu je analiziran rezultat uticaja organskog đubriva Rosasoil na prinos i tehnološke karakteristike grožđa sorte rizling italijanski u fazi redovne rodnosti. Rezultati su potvrdili pozitivno dejstvo đubriva na ostvareni prinos i tehnološke karakteristike.