Uman NUH | today: 12/22/2024
| Author(s) |
Yakovenko R.V., Candidate of Agricultural Science, , Uman National University of Horticulture, Ukraine Трушев І. М., , , |
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| Category | |||
| year | 2024 | issue | Issue number 104. Part 1 |
| pages | 70-79 | index UDK | 634: 631.8 | DOI | 10.32782/2415-8240-2024-104-1-70-79 (Link) |
| Abstract | The introduction of a scientifically-grounded fertilization system is crucial in the efforts to support a sustainable high level of the yield capacity of the apple tree plantations and to get the fruit of the required quality. The foliar application of fertilizers and bio-preparations is an important component of the optimization of the orchard fertilization system, as it has become part and parcel of the updated intensification technologies. The research results of studying the effect of the soil fertilization and foliar fertilizer application on the formation of the yield and quality of apple tree fruit, cv. Champion Arno, grown on chornozem opodzolic in the Right-bank Forest steppe zone of Ukraine, were considered. The research was carried out in the experimental apple tree orchard of Uman national university of horticulture in the years of 2021–2023. Various treatments of fertilization and top dressing of apple trees, cv. Champion Arno, on rootstock MM 106 were under study. It was found out during the years under study that the number of flowers of the apple trees ranged between 378 and 932 pcs./tree, and, to a large extent, it depended on fertilization. Similar to the information about the number of flowers, the load of the trees with fruit took place and it depended on the type and term of the fertilizer application, it also differed within 66 and 185 pcs./tree. In accordance with the intensity of flowering and fruit formation of the apple tree, a significant fluctuation of the yield capacity of the experimental trees was recorded – 21.2 to 33.4 t/ha, depending on the fertilization treatment. On the average in the years under study, the fruit output of the high and first commercial cultivars depended on the studied treatments; it ranged within 73.5–80.3 %. During the research period, the average fruit mass was within 132–153.1g, and it depended on the fertilization treatment considerably. | ||
| Key words | soil fertilization, top dressing, productivity of plantations, fruiting of trees, marketability of fruits | ||