Кафедра плодівництва і виноградарства

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Перегляд Кафедра плодівництва і виноградарства по Автор "Chepurnyi V."
  • Матеріал
    GROWTH ACTIVITY OF APPLE TREES DEPENDING ON THE METHOD AND TIMING OF CROWN PRUNING
    (Journal of Horticultural Research, 2024-10-31) Chaploutskyi А. ; Butsyk R. ; Chepurnyi V. ; Kucher I. ; Chetskyi B. ; Zabolotnyi O.
    The apple tree is one of the most widespread fruit crops in the world. As the area of plantings increases and horticulture transitions to intensive technologies, the demand for skilled workers increases. The introduction of mechanization processes can solve this problem at all stages of fruit production. The aim of this study was to investigate the effect of contour pruning and its modification at different times on the growth of ‘Jonaweld’ apple trees grafted onto the dwarf rootstock M.9 T337. As a result of contour pruning, the trunk diameter increased by 61% and the number of shoots by 40%. Contour pruning with manual refinement produced intermediate results between manual and contour pruning. Furthermore, contour pruning produced the shortest shoots, only 22 cm, compared to 29 cm with manual pruning. There was also a general tendency to limit the growth activity of trees due to postponing pruning. The growth of trunk diameter slowed by 25%, the number of shoots decreased by 8%, and their length decreased by 20%. Specific productivity was highest when contouring with postharvest refinement and pruning.
  • Матеріал
    Yield of pear plantations depending on optimised mineral nutrition
    (European Conference, 2023) Yakovenko R. ; Chepurnyi V.
    Thus, the highest yields of both experimental pear varieties Conference and Osnovyanska were provided by fertilisation with additional application of N30 and N30K30 to the calculated norms of nitrogen and potassium fertilisers (background), respectively, 27 and 31 and 37 and 36% higher than from unfertilised trees and by 1 and 5 and 7 and 6% - from fertilised trees with annual application of N90P60K90, where there was a less balanced ratio of nitrogen, phosphorus and potassium in the nutrition of fruit trees, although the total amount of fertiliser was higher.