Uman NUH | today: 07/08/2024
| Author(s) |
Martynyuk A.T., Candidate of Agricultural Sciences, , Uman National University of Horticulture, Ukraine Hospodarenko G.M., Doctor of Agricultural Sciences, Professor, Uman National University of Horticulture, Ukraine Lubych V.V., Candidate of Agricultural Science, Lecturer of Department of Technology of Storage and Processing of Grain, 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 |
||
|---|---|---|---|
| Category | The Agronomy | ||
| year | 2024 | issue | Issue number 104. Part 1 |
| pages | 249-257 | index UDK | 581.132+631.559:633.412:631.816 | DOI | 10.32782/2415-8240-2024-104-1-249-257 (Link) |
| Abstract | The aim of the research was to investigate how different doses of mineral and organic fertilizers, applied under various fertilization systems in a field crop rotation, affect leaf surface area and yield of sugar beet grown on podzolized chernozem in the Right-Bank Forest-Steppe. Methods. Field and laboratory methods were utilized, encompassing measurement (weighing included), comparative analysis, and mathematical modeling for statistical analysis. Results and conclusions. The research established that the formation of leaf surface area and the yield of sugar beet depended on the doses of mineral and organic fertilizers, as well as on weather conditions and fertilization systems in crop rotation. Under the mineral fertilization system, direct application of N180P180K180 resulted in the largest average leaf area of 5,268 cm² per plant in July and a root mass of 639 g per plant in September. Organo-mineral fertilization with 45 t/ha manure + N90P202K45 significantly increased leaf area and root mass compared to the control group. Leaf area in July rose by 2,510 cm² per plant, followed by further increases in August (2,541 cm²) and September (860 cm²). Similarly, root mass showed steady gains throughout the season, with increases of 537 g, 598 g, and 645 g in July, August, and September, respectively.Conducting correlation-regression analysis revealed that in the middle of the vegetation period (July), there is a significant direct correlation between the leaf surface area and the root mass with a correlation coefficient of r² = 0.89.However, in August and September, the correlation between leaf surface area and root mass became non-significant, with coefficients of 0.43 and 0.32, respectively. On average over three years of research, the highest yield of sugar beet roots was achieved under mineral and organo-mineral fertilization systems, where the yield exceeded the control by 10.7–20.3 t/ha and 13.2–20.4 t/ha, respectively.The organic fertilization system exhibited slower leaf surface area development and sugar beet root mass growth dynamics throughout the growing season compared toboth the mineral and organo-mineral fertilization systems. Weather conditions varied across the research years, with 2021 and 2022 offering a more favorable combination of precipitation and temperature for leaf surface area development and sugar beet yield. The 2023 vegetation period lagged behind in these crucial factors. | ||
| Key words | sugar beet, fertilizer doses, leaf area, root crop, yield | ||