Uman National University | today: 12/25/2025
| Author(s) |
Lubych V.V., Candidate of Agricultural Science, Lecturer of Department of Technology of Storage and Processing of Grain, Uman National University of Horticulture, Ukraine Сутик О. В., , , |
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| Category | The Agronomy | ||
| year | 2025 | issue | Issue 107 part 1 |
| pages | 10-19 | index UDK | 544.116:633.15):631.816.3 | DOI | 10.32782/2415-8240-2025-107-1-10-19 (Link) |
| Abstract | Objective. To determine the nutrient content in maize grains depending on the fertilizer application methods. Methods. Laboratory, measurement, comparative, analytical, statistical. Results. Nitrogen content significantly depended on the use of nitrogen-containing fertilizers. On average, over three years of research, nitrogen content increased from 1.12% to 1.37–1.43% in nitrogen fertilization systems, or by 22–28%. When applying a complete mineral fertilizer, nitrogen content increased to 1.41–1.51%, or by 26–35% compared to the control, and by 3–6% compared to the nitrogen systems. Growing maize under a phosphorus-potassium system even reduced nitrogen content in the grains to 1.09%, or by 3% compared to unfertilized plots. Potassium content, on average over three years, also tended not to change with nitrogen fertilization systems. At the same time, the phosphorus-potassium system significantly increased potassium content in maize grains both on average and across the years of research. However, the effect of fertilization varied over the years. Without foliar fertilization, in 2023, potassium content remained unchanged; in 2024, it decreased; and in 2025, it increased with complete mineral fertilizer compared to the control. Nitrogen fertilization systems significantly reduced potassium content in the grains. Foliar fertilization with Brexil Mix promoted zinc accumulation only when maize was grown under nitrogen fertilization systems. Conversely, complete mineral fertilization reduced zinc content. With single foliar fertilization, zinc content decreased under the phosphorus-potassium system, while double foliar application increased it. Conclusions. Nitrogen content in maize grains increased with the application of nitrogen-containing fertilization systems. Phosphorus and potassium content showed different trends depending on the fertilization scenario. Magnesium and zinc content decreased with the use of basic mineral fertilizer. Foliar fertilization with Brexil Mix contributed to their increase when maize was grown under nitrogen fertilization systems. | ||
| Key words | nitrogen, phosphorus, potassium, magnesium, zinc, basic fertilization, foliar fertilization. | ||