Uman National University | today: 05/28/2026
| Author(s) |
Martynyuk A.T., Candidate of Agricultural Sciences, , Uman National University of Horticulture, Ukraine Stasinevych O.Y., Candidate of Agricultural Science, Associate Professor of Department of Agricultural Chemistry and Soil Science, Uman National University of Horticulture, Ukraine Садовський І. С., , , |
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| Category | The Agronomy | ||
| year | 2026 | issue | Issue 108 part 1 |
| pages | 268-280 | index UDK | 631.8:631.417:633.63 | DOI | 10.32782/2415-8240-2026-108-1-268-280 (Link) |
| Abstract | Objective. To study the effect of organic, mineral, and organo-mineral fertilization systems on the dynamics of the nutrient regime of podzolized chernozem in sugar beet crops. Methods. Field, laboratory and mathematical-statistical. Results. It was established that the highest content of nitrate and ammonium nitrogen, as well as mobile compounds of phosphorus and potassium in podzolized chernozem, was observed at the beginning of the sugar beet growing season. Under the organo-mineral fertilization system in the 0–30 cm soil layer, it amounted to 9.7–11.5 and 14.9–17.3 mg/kg, and 136–244 and 128–173 mg/kg, respectively. Under the mineral fertilization system in crop rotation, their content did not differ significantly from the organo-mineral system and, depending on the variant, amounted to 9.3–10.8 and 14.6–17.1 mg/kg, and 147–224 and 134–167 mg/kg, respectively. Under the organic fertilization system, the content of nitrate and ammonium nitrogen during this period was lower and amounted to 8.2–9.5 and 14.2–15.7 mg/kg, while mobile phosphorus and potassium compounds amounted to 112–141 and 125–159 mg/kg, respectively. At the end of the sugar beet growing season, the content of nitrate nitrogen in podzolized chernozem in the 0–30 cm layer decreased by 83–86%, ammonium nitrogen by 37–42%, mobile phosphates by 14–18%, and mobile potassium compounds by 16–19%. Under the mineral fertilization system, these indicators decreased by 83–85% and 37–44%, and 19–21% and 19–23%, respectively; under the organic system – by 83–85% and 37–44%, and 19–21% and 19–23%; under the organo-mineral system – by 84–88% and 34–37%, and 14–24% and 18–21%, respectively. Conclusions. Among the studied fertilization systems, the organo-mineral system provides optimal conditions for plant mineral nutrition during the growing season when applying 45 t/ha of manure and mineral fertilizers at a rate of N90P202K45 for sugar beet. | ||
| Key words | sugar beet, mineral, organic and organo-mineral fertilization systems, nitrate and ammonium nitrogen, mobile phosphorus and potassium compounds | ||