Кафедра агрономії
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Item type:Наукова стаття, Drawdown of biophilic elements under winter barley, and maintaining fertility of black soils of Western Ukraine(Poland, 2025) Avhustynovych, MariiaClimate stabilisation and soil fertility strategies that capture carbon as soil organic matter lag because of ambiguity in stoichiometry, ionomics, and correlations between key chemical components of soil productivity. We analyse the mutual influence of C, N, P, Ca, S, Mg, and K content, N content, microelements, and the yield of winter barley in Luvic Greyzemic Phaeozems of the Ukrainian Western Forest-Steppe. Depletion of biophilic element stocks occurred only with a significant increase in the yield of winter barley which ranged from 6.6 to 7.4 t/ha compared to unfertilised control plots yielding 4.4–4.6 t/ha. The 6 × 6 correlation matrix of the elements indicates 16 significant relationships out of the 21 calculated. Heavy fertiliser application (N120P60K60) combined with a nitrification inhibitor poses no great risk of soil depletion but does require supplementation with sulphur-containing Ca and Mg fertilisers and micronutrients.Item type:Наукова стаття, Effects of lime and fertiliser on productivity of Albic Retisols(Poland, 2023) Avhustynovych, MariyaThe long-term effects of three levels of liming in combination with NPK fertiliser were studied in a field experiment on sandy Albic Retisols (sod podzolic soils) in Northwest Polissia from 2011 to 2019. Crop yields were recorded and topsoil samples collected annually and analysed for hydrolytic acidity, pH, readily hydrolysable N, labile P, and exchangeable K. The highest levels of plant nutrients were measured in plots receiving the highest doses of lime; the content of the studied elements increased during the first 4–6 years then stabilised at high levels; and this trend was shadowed by the crop yields. Grain weight varied on average from 2.07t/ha in the unfertilised control, to 3.06t/ha in plots receiving only NPK, and reached 5.30t/ha on plots receiving the maximum dose of lime.Item type:Наукова стаття, Changes in the agrochemical indices of Luvic Greyzemic Phaeozems under the impact of west Ukraine climate aridization(Poland, 2022) Avhustynovych, MariyaModern agriculture has not been so strongly affected by the climate change we are seeing today. There are no systematic studies and predictions regarding the response of soils to rising air temperatures and changes in the water supply of landscape ecosystems. Ultimately, it is unknown how climate fl uctuations affect the balance of nutrients and humus in soil depending on the crops grown. There is not enough scientifi c data to indicate that warming or aridization affect the effi ciency of plant fertilizers. Our aim is to fi nd out how changes in the climate of the Western Ukrainian mesoclimate interacts with the trends in soil processes and crop yields in the Northwestern Forest- Steppe. We analysed the weather data from 1945–2018 provided by the Rivne State Weather Station (Ukraine) and the crop yields of the Main Directorate of Statistics of Ukraine in Rivne region. Field studies were conducted in the conditions of the Northwestern Forest-Steppe of Ukraine during 1960–2018 at the stationary fi eld experiments of the Luvic Greyzemic Phaeozems (WRB. 2015) of the Institute of Agriculture of the Western Polissia of NAAS (Ukraine).Item type:Наукова стаття, Soil classification of Ukraine and its correlation with WRB(Poland, 2026) Avhustynovych, MariyaDuring an extensive period of research on Ukrainian soils, a substantial amount of factual data regarding their properties has been gathered. However, this knowledge has not yet been sufficiently disseminated within the international scientific community. The aim of this article is to present to the global academic audience the soil resources of Ukraine, as well as the problems and challenges faced by Ukrainian soil scientists in addressing the issue of soil classification. The lack of a new national soil classification system, aligned with modern global trends, that both preserves comprehensive knowledge about soils and simultaneously functions as a normative document, represents the most pressing issue in Ukrainian soil science today. Historically, Ukrainian soil classifications have predominantly been factor-genetic in nature, which makes direct comparison with the substantive classification system of the WRB particularly challenging. Rather than comparing entire classification systems, this study focuses on correlating the national soil nomenclature with the WRB system, particularly through analysing soil types based on their diagnostic and analytical characteristics. The methodological approach involved determining the corresponding WRB equivalents for the soil categories used in the Soil Map of Ukraine, compiled from regional soil maps at a scale of 1:200,000. A distinctive feature of Ukrainian soil nomenclature is the verbosity of soil names and the utilisation of landscape and ecological terms, which significantly complicates the process of correlation with the WRB. In this study, soil names were correlated primarily based on central archetypes and soil-forming factors, given that the Ukrainian classification does not incorporate the concept of diagnostic horizons. In total, the soils of Ukraine were classified into at least 21 reference soil groups under the WRB, including Anthrosols, Arenosols, Calcisols, Cambisols, Chernozems, Fluvisols, Gleysols, Histosols, Kastanozems, Leptosols, Luvisols, Phaeozems, Planosols, Regosols, Retisols, Stagnosols, Technosols, Umbrisols, Vertisols, Solonchaks, and Solonetz. The largest proportions are occupied by the following soils: Chernozems (47.0%), Phaeozems (18.5%), Retisols (4%), Luvisols (6.4%), Arenosols (5.4%).Item type:Наукова стаття, Influence of climate dynamics and liming on physicochemical soil properties and crop- rotation productivity of North-Western Polissya in Ukraine(Poland, 2022) Avhustynovych, MariyaTwo liming fertilizers for soil deacidifi cation in Polissya were investigated: dolomite and lime fl our, which were applied at the beginning of the 8-year crop rotation with medium fertilizer N112P82K105 between 2011 and 2019. The experiments were performed in a stationary fi eld trial by the Institute of Agriculture of Western Polissya of the National Academy of Agrarian Sciences of Ukraine on crop rotation of winter wheat, corn, barley and winter rape. The object of the research was Albic Retisol (Arenic, Aric) (WRB, 2014) in a stationary trial. Before starting the research, soil pHKCl was 4.3 and hydrolytic acidity (Hh) 2.80–2.97 cmol(+)·kg–1. Liming fertilizer doses were determined on the basis of soil hydrolitic acidity (Hh) for dolomite fl our: 0.5 Hh – Dd0.5 2.230 t∙ha–1; 1 Hh – Dd1.0 4,740 t∙ha–1; 1.5 Hh – Dd1,5 6,700 t∙ha–1 and lime fl our: 1 Hh – Dl1.0 4,940 t∙ha–1. Application of dolomite fl our at a dose of Dd1.5 6,700 t∙ha–1 proved to be the most effective. It neutralised the acidity of the soil to the highest level pHKCl (6.64) and maintained in this case pHKCl 6.04 until the end of the 8-year of crop rotation. 3D modeling showed that the effectiveness of soil deacidifi cation by dolomite fl our increases with moderate simultaneous climate warming and humidifi cation.