Influence foliar fertilization in conjunction with fruit thining on apple productivity Idared variety

Abstract

Fruit thinning is a major influence on high production next year, extra quality fruit this year. The company's apple orchard S.A. Zubresti have been investigated by a combination of fruit thinning of 10 - 12 and 16 - 18 mm in the central flower of the application of foliar fertilization with 46% Urea N in doses ranging from 0.4 - 1.2%, Polyfeen (19 : 19:19 + 6 elements) at a dose of 0.1%, CaCl 2 at a dosage of 0,5 - 0,7%. The number of the varietyof Idared fruit research during the years increased from 155 units to 233 units followed by growth until harvest per hectare to 57.2 t in variant with foliar fertilization with the concentration of 0.6%, 0.9%, 1 2%and more, when the fruit center thinning is 10 to 12 mm in diameter.