Evaluation of the Effect of Biostimulation on the Yielding of Golden Delicious Apple Trees

The aim of the study was to assess impact N Pro and Seactiv Complex technologies based on sea algae extracts yield quality Golden Delicious apple trees compared standard fertilization program. Research conducted in years 2008–2017 showed that tree technology year research had a significant parameters. abundance seaweed positive effect greater number fruits per (pcs.), their weight (t × ha−1; kg tree−1), percentage exceeding 7.5 cm size (%) average (g) control combination. In most analyzed years, total exceeded 90 t threshold regardless use during 10 commonly used cultivation.