The influence of foliar fertilization on apple productivity

Abstract

Investigations of the development system foliar fertilization in apple was conducted through research methods and field stationary. As study material served apple trees aged 8 years old Golden Delicious and Idared varieties, grafted on rootstock M26. Distance planting 4 x 2 m. As a foliar fertilizer was used to Urea 46% in a concentration of from 0.4% to 1.2% in the various stages of fruit development, Poly-feed (N19 P19 K19) at a concentration of 0.1% calcium chloride CaCl2 at a dose of from 0.5% to 0.7%. In average years of research on fertilized with urea 46% N stages of fruit development: the petals fall of 75%, 20 mm and 30 mm central fruit of the central fruit, fruit number was 172 units in version control and 211 units in variant V4