Uman National University | today: 12/25/2025
| Author(s) |
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 Гавриленко В. С., , , Тригуб О. В., , , Іллічов Ю. Г., , , |
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| Category | The Agronomy | ||
| year | 2025 | issue | Issue 107 part 1 |
| pages | 238-248 | index UDK | 631.547.2:633.16]:631.816 | DOI | 10.32782/2415-8240-2025-107-1-238-248 (Link) |
| Abstract | Purpose. To determine the formation of growth and development parameters of naked spring barley plants under different fertilizer rates and their combinations in a field crop rotation. Methods. Field, measuring, calculation-comparative, analytical, and statistical. Results. At the stage of full grain maturity, the nitrogen component of complete mineral fertilizer (N70P60K70) contributed to an increase in plant height by 11–40%, depending on the weather conditions of the research year, whereas phosphorus and potassium had no significant effect. At the same time, a reduction in the proportion of phosphorus, potassium, or both nutrients in the complete mineral fertilizer did not significantly decrease the height of naked spring barley plants. This parameter also varied substantially depending on weather conditions. Thus, on unfertilized plots, plant height over the years of research ranged from 55 to 78 cm (a variation of 42%), whereas under N70P60K70 application it ranged from 74 to 91 cm (a variation of 23%). This once again confirms that improving mineral nutrition of naked spring barley plants mitigates the negative impact of weather conditions. It was established that fertilizer application significantly increases the survival of naked spring barley plants. On average over three years, this indicator was 83.8% when grown on unfertilized plots. The application of phosphorus and potassium fertilizers alone increased plant survival by 1% (to 85.0%). The nitrogen component of the studied fertilization systems ensured plant survival at the level of 91.4–91.7%, which is 9% higher compared with the control. Conclusions. As a result of the conducted research, it was found that the growth of naked spring barley plants is influenced by weather conditions and fertilizer application. Plant survival is most strongly affected by fertilizer use. The formation of productive stems varies depending on the amount of precipitation during March–April as well as on the sowing date. | ||
| Key words | naked spring barley, duration of the vegetation period, plant height, plant survival, field emergence | ||