Uman National University | today: 06/27/2025
| Author(s) |
Лозінська А. С., , , Lubych V.V., Candidate of Agricultural Science, Lecturer of Department of Technology of Storage and Processing of Grain, Uman National University of Horticulture, Ukraine |
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| Category | The Agronomy | ||
| year | 2025 | issue | Issue 106 Part 1 |
| pages | 397-410 | index UDK | 631.573:634.723]:633/635.042+631.816.3 | DOI | 10.32782/2415-8240-2025-106-1-397-410 (Link) |
| Abstract | Objective. To determine the parameters of blackcurrant (Ribes nigrum L.) root system development depending on soil management in inter-row and in-row strips and the application of fertilizers. Methods. Field, measuring, calculation-comparative, analytical, and statistical methods were used. Results. The deepest rooting and the horizontal spread of the blackcurrant root system were observed with soil management in inter-row strips as bare fallow, and in in-row strips with mulching using straw and film in combination with N60P90K90 + Riverm at 3% and N60P90K90 + Riverm at 5%. In the treatment with N60P90K90 + Riverm at 5% and straw mulch in in-row strips combined with bare fallow in inter-rows, root length indicators were significantly higher compared to grassed treatments. For instance, the combination of N60P90K90 + Riverm 3% with straw mulch in in-row strips and bare fallow in inter-rows significantly increased root length up to 18.2 meters. Conclusions. Statistical analysis confirmed that the optimal root mass was formed under bare fallow in inter-row strips, application of N60P90K90 + Riverm 3%, and straw mulching in in-row strips. The most influential factor on root mass was fertilizer application (partial coefficient = 0.86), followed by soil management in in-row strips (0.83). The least influential was inter-row soil management (0.36). Under bare fallow in inter-rows, the root mass of blackcurrant without fertilizers increased from 1.25–1.74 kg to 4.72–6.00 kg with N60P90K90 + Riverm 3% application — an increase of 3.4–3.8 times, depending on in-row strip management. Under grassed inter-rows, root mass increased from 0.75–0.89 kg to 2.94–3.00 kg — an increase of 3.4–3.9 times. The root mass under grassing was 1.7–2.0 times lower on unfertilized plots and 1.6–2.0 times lower on fertilized ones compared to bare fallow treatments. It has been statistically confirmed that the optimal root mass index in blackcurrant is formed under the following conditions: maintaining inter-row spaces as clean fallow, applying N60P90K90 combined with Riverm at 3%, and mulching the intra-row zone with straw. Fertilization has the greatest influence on root mass formation, with a partial correlation coefficient of 0.86, followed by soil management in the intra-row zones, with a coefficient of 0.83. | ||
| Key words | blackcurrant, inter-row management, fertilizers, foliar feeding, root system | ||