THINNING AND FOLIAR FERTILIZATION INFLUENCE ON THE YIELD OF IDARED APPLE CULTIVAR

Published in Scientific Papers. Series B, Horticulture, Volume LVIII
Written by Sergiu VĂMĂȘESCU, Valerian BĂLAN

The research was conducted during 2010 - 2013 in an apple orchard planted in 2003 with 'Idared' cultivar grafted on M26 rootstock, at distance of 4x2 m. The trees are ruled by thin spindle-shaped crown. We studied the interaction between foliar fertilization and fruit thinning as the main determinants of the quantity and quality of apple fruit. The highest production (49.1 t/ha) was realized at application of 46% urea N in a concentration of 0.6% - when the 75% of the flowers while they fall, 0.9% - when the central fruit blossom has 10 to 12 mm, 1.2% - when the fruits are 25-30 mm in diameter and thinning of fruits by chemical preparation Bioprzerzedzacz SL 060, at a concentration of 0.075% when the diameter of the central fruit blossom is 10 - 12 mm.

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Vămășescu S., Bălan V. 2014, THINNING AND FOLIAR FERTILIZATION INFLUENCE ON THE YIELD OF IDARED APPLE CULTIVAR. Scientific Papers. Series B, Horticulture, Volume LVIII, Print ISSN 2285-5653, 107-112.


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