Кафедра землеробства і агрохімії ім. В.І.Сазанова
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Item Agro-ecological territories zoning for the cultivation of organic agricultural products.(2017) Ласло, Оксана Олександрівна; Писаренко, Павло ВікторовичItem Agrobiological features and use of cornflower (Centaurae cyanus L.)(2022-05-20) Запорожець, Владислав Костянтинович; Поспєлов, Сергій ВікторовичItem Agrobiological features of St. John’s wort (Hypericum perforatum L.)(2022-05-20) Семенко, Максим Васильович; Поспєлов, Сергій ВікторовичPublication Assessing the efficiency of bacterial and phytohormonal soybean (Glycine max L.) seed treatment under organic farming technology(2025-12-26) Короткова, Ірина Валентинівна; Korotkova, I. V.; Chaika, T.; Shevnikov, M.; Liashenko, V.; Gorbenko, O.; Rybalchenko, A.Soybean (Glycine max L.) is one of the most sought-after legumes on the global market due to its high demand in the feed, food, and industrial sectors. Climate change necessitates the implementation of technological innovations to enhance plant resistance to adverse growing conditions. The aim of this study was to investigate the effect of pre-sowing seed treatment of soybean with the bacterial preparation Profix, the phytohormone based preparation Violar, as well as their combined application through seed inoculation and crop spraying during the bud formation–bloom phase, on the development and productivity of soybeans under an organic farming. To examine the dynamics of leaf surface area, photosynthetic pigments, malondialdehyde and proline levels, and their relationship with yield, the ANOVA-Tukey test and principal component analysis were employed. The field experimental results showed that pre-sowing seeds treatment with the Profix inoculant, the phytohormonal preparation Violar, and their combined application contributes to an increase in leaf surface area, an enhancement in the content of photosynthetic pigments, a reduction in malondialdehyde levels, and an increase in proline content in soybean plant. These physiological improvements ultimately led to average soybean yield increases of 12.3%, 19.6%, and 29.2%, respectively, despite adverse weather conditions 2024. These results demonstrate the effectiveness of integrating bacterial and phytohormonal seed treatments as a sustainable and innovative approach to enhancing soybean productivity under organic farming conditions.Publication Assessment of landfills and their impact on the soil: a local study in Ukraine(2024) Pysarenko, P. V.; Samoilik, M. S.; Pysarenko, V. M.; Mostoviak, I.; Taranenko, A. O.; Taranenko, S. V.; Dychenko, O. Yu.; Lastovka, V.; Husinsky, D.; Писаренко, Павло Вікторович; Самойлік, Марина Сергіївна; Писаренко, Віктор Микитович; Мостов'як, І. І.; Тараненко, Анна Олексіївна; Тараненко, Сергій Володимирович; Диченко, Оксана Юріївна; Ластовка, В.; Гусинський, Д.Landfills are widely utilised for waste disposal due to their economic advantages and ease of implementation compared to alternative methods. However, landfills exert significant environmental and health impacts on adjacent agricultural land. Accumulation of heavy metals in soil is a risk to ecological and food safety. Methodological approaches to assess and mitigate the impact of landfills on agricultural land are essential for ensuring sustainable land use practices and safeguarding human health. In this study, landfills were assessed at the local level, and the hazard level was classified according to it. A set of priority measures for restoring technogenic disturbed areas and minimising their impact on agricultural land was determined. The need to select a set of innovative, ecologically oriented methods for remediation of landfills, depending on the type and degree of soil contamination, was identified in context of ensuring environmental and food security.Publication Biological mechanisms of invasiveness of Ambrosia artemisiifolia L. and innovative control approaches(2025-12-03) Оніпко, Валентина Володимирівна; Onipko, V. V.; Поспєлов, Сергій Вікторович; Pospelov, S. V.; Поспєлова, Ганна Дмитрівна; Pospielova, G. D.; Pospelova, H; Коваленко, Нінель Павлівна; Kovalenko, N. P.The purpose of the review was to summarize current scientific approaches to studying the biological mechanisms of invasiveness of Ambrosia artemisiifolia L., to identify ecological and agroeconomic risks associated with its spread, and to analyze innovative strategies for controlling this dangerous weed. Ambrosia artemisiifolia L. is one of the most aggressive invasive species of the Asteraceae family, posing a significant threat to agroecosystems, natural biodiversity, and human health. Its spread under conditions of trade globalization and climate change has reached a large scale, emphasizing the need for interdisciplinary research on the bioecological characteristics of this species and the development of comprehensive control strategies. The high invasive potential of A. artemisiifolia is determined by a complex of adaptive traits: rapid initial growth, tolerance to various soil types and climatic conditions, a powerful root system, cross-pollination, and pronounced seed heteromorphism. These features ensure the formation of persistent soil “seed banks” that support long-term population recovery even after mechanical or agronomic interventions. In addition, the considerable genetic variability of the species promotes local adaptation to changing climatic and anthropogenic factors, complicating control efforts across regions. It was emphasized that the expansion of ragweed in Europe and Asia leads to reduced crop yields, displacement of native species, and ecosystem degradation. Losses in the agricultural sector are associated with both direct decreases in the productivity of maize, sunflower, soybean, and other crops, and with increasing costs of herbicide application. However, chemical control is complicated by the development of resistance to major groups of herbicides. This underlines the relevance of integrated weed management approaches, that combine agronomic practices (crop rotation, optimization of sowing density, cultivation of competitive crops), biological control (entomophages, phytopathogens, microbial preparations), chemical methods, and environmentally safe technologies. A promising direction is the use of modern geographic information systems, remote sensing methods, and mathematical modeling to monitor the spread of A. artemisiifolia and predict its invasion dynamics under climate change. Such an approach makes it possible to identify priority control areas and effectively allocate resources. Further research should focus on improving adaptive integrated management systems for ragweed populations, assessing the long-term consequences of its invasion for biodiversity and human health, and developing ecologically oriented models of sustainable land use.Publication Comparative characteristics of morphometric indicators of quarantine species of the genus Cuscuta (Cuscuta L.) growing in Ukraine(2025-12-08) Коваленко, Нінель Павлівна; Kovalenko, N. P.; Поспєлова, Ганна Дмитрівна; Pospielova, G. D.; Самородов, Віктор Миколайович; Samorodov, V. M.; Поспєлов, Сергій Вікторович; Pospelov, S. V.; Pospielov, S.; Оніпко, Валентина Володимирівна; Onipko, V. V.A review is devoted to the comparative characteristics of the morphometric and biological features of doddlers in Ukraine based on a scientific source base. The systematic position of the common quarantine parasitic plants of the genus Cuscuta L. (dodder), commonly found in Ukraine, is presented. A morphometric analysis of 15 species is provided, highlighting differences in stem diameter, length, and color, features of the flower structure, types of inflorescences, and fruit shape. The literature data indicate a high degree of similarity among Cuscuta species prevalent in our country, which significantly complicates their identification in natural environments and agrocenoses, and is insufficient for clear and, more importantly, unmistakable identification by professionals in applied branches of the agricultural industry. Knowledge of the biological characteristics of Cuscuta species is important for understanding their spread and high naturalization potential. Currently, this information is quite fragmented and insufficiently studied. Information is presented regarding the most studied species, namely: C. campestris Yunck., C. trifolii Bab., C. europaea L., C. epilinum Weihe, C. Lemanniana Bge., C. lupuliformis Krock. and C. epithymym L. An important factor in the formation of the infectious background in agrocenoses and natural environments is the seed viability period. It has been established that the longest period of preservation of its viability is observed in C. trifolii Bab. (10-12 years); up to 6 years in C. campestris Yunck, C. europaea L., and C. Lemanniana Bge. The shortest viability period is up to one year (in the soil) in C. epilinum Weihe. However, there are reports about the possibility of preserving seed viability for up to 25–30 years under conditions unfavorable for its germination. In our opinion, this is due to such a phenomenon as "hardseededness". The formation of the seed bank in the soil is also influenced by the fertility of the species. Among the Cuscuta species growing in Ukraine, this indicator has been established only for seven species: C. campestris Yunck., C. trifolii Bab., C. europaea L., C epilinum Weihe, C. Lemanniana Bge., C. lupuliformis Krock., and C. epithymym L. The largest number of seeds per plant is produced by C. Lemanniana Bge. (up to 100.000) and C. campestris Yunck. (up to 114.000). The period of emergence of seedlings has been found to be March-May. It depends on the soil temperature and the depth of seed placement. It has been determined that at a soil temperature of 16–25 ⁰С, mass seed germination occurs in May-June. The flowering period is extended and lasts from June to August.Publication Correction of sowing quality of medicinal plants seeds with echinaceia extracts(2024) Pospielov, S. V.; Mishchenko, O. V.; Onipko, V. V.; Pospielova, G. D.; Поспєлов, Сергій Вікторович; Міщенко, Олег Вікторович; Оніпко, Валентина Володимирівна; Поспєлова, Ганна ДмитрівнаThe paper presents experimental data on the effect of echinacea extracts on the sowing qualities of medicinal herbs. The biological activity of extracts obtained from the areal part (EAP) and rhizomes with roots (ERS) of pale echinacea was investigated. The object of study was the sowing quality of the seeds of such medicinal plants as blue cornflower (Centaurea cyanus L.), purple echinacea (Echinacea purpurea (L. Moench.), pale echinacea (Echinacea pallida (Nutt.) Nutt.), St. John's wort (Hypericum perforatum L.), forest mallow (Malva sylvestris L.), which are of industrial importance for medicinal plants. The seeds were soaked in 0.01%-0.0001% solutions of extracts, under the control they were treated with water, after that they were germinated in Petri dishes by generally accepted methods according to the standards. The best results were obtained in mallow seed extracts. The solution of EAP at a concentration of 0.001% increased the energy of germination by 19.2% compared to the control, and when using ERS in all concentrations, a positive effect was obtained (by 18.2 %-23.6% to the control). Germination of variants treated with EAP solutions increased by 1.12-1.21 times, and ERS – by 1.09-1.21 times. Treatment of Echinacea purple seeds with EAP solutions was not effective, but rhizome extract treatment with roots had a positive effect on both germination energy and germination resulting 12.0%-17.3% and 8.3%-9.5% compared to the control, respectively. Similar regularities were observed in variants with the treatment of Echinacea seeds with extracts in different concentrations. The action of EAP solutions did not statistically exceed the control, but when using ERS, the results reliably exceeded the control by 10.8%-13.8% (germination energy) and by 11.0%- 17.8% (germination). Treatment of St. John's wort and cornflower seeds with extracts did not lead to changes in seed quality indicators. A general trend of greater activity of extracts in concentrations of 0.01%-0.001% was observed.Item Dependence of growth processes of Echinacea purpurea (L.) Moench. of the first year of vegetation on agrometeorological factors(2022-05-20) Поспєлов, Сергій Вікторович; Поспєлова, Ганна Дмитрівна; Поспєлов, Ілля СергійовичPublication Ferromagnetic nanoparticles of iron/cobalt and iron/manganese oxides in aqueous solutions of surfactants(2025-12-22) Семенов, Анатолій Олексійович; Semenov, A. O.; Panchenko, V. G.; Сахно, Тамара Вікторівна; Sakhno, T. V.; Barashkov, N. N.; Sakhno, Y. E.Nanoparticles of iron/cobalt and iron/manganese oxides in the form of stable suspensions are used in the development and manufacture of nanotracers, which are used to check the mixing processes of animal feeds, which are in both solid and liquid states, the coding of liquid additives and the efficiency of their uniform distribution in prepared premixes and compound feed.Publication Formation of pale purple coneflower (Echinacea pallida (Nutt.) Nutt.) seed productivity in the conditions of the Left-Bank Forest-Steppe of Ukraine(2025-12-08) Поспєлов, Сергій Вікторович; Pospelov, S. V.; Поспєлова, Ганна Дмитрівна; Pospielova, G. D.; Zezekalo, Ye.; Оніпко, Валентина Володимирівна; Onipko, V. V.; Manachynskyi, O.The study results of seed productivity of pale purple coneflower (Echinacea pallida (Nutt.) Nutt.), a promising medicinal and honey crop are presented. The research was conducted in the conditions of production plantations of Poltava region. It was established that at the early stages of ontogenesis, pale purple coneflower developed slowly: the first sprouts appeared 11–15 days after sowing and this period extended to 20–25 days. The cotyledon leaf phase lasted about for 7–9 days, and the first true leaf was formed during 25–32 days. The above-ground part and root system grew slowly in the first two months, their development accelerated from July. By the end of the vegetation, the plant formed a rosette of leaves and a fleshy vertically thickened rhizome. The generative period of pale purple coneflower began from the second year of growing season. Flowering lasted on the average for 46–52 days, starting in June. Plants reached a height of 85 cm, forming from 1 to 9 generative stems (on the average – 5.4). The average number of seeds per plant made 2770 pieces, and thousand-seed weight varied within 2.3–3.55 g. The morphometric study of the parameters of different orders’ inflorescences on the shoot shows that the anthodia of the first-fourth orders were characterized by the largest diameter (3.02–3.60 cm) and the height of the inflorescences (2.443.25 cm). The first three inflorescences provided 68 % of the total seeds’ weight from the plant, which indicates their highest productivity and value. It is emphasized that the sowing qualities of pale purple coneflower seeds are limited by a long period of organic dormancy. Laboratory germination of freshly harvested seeds from inflorescences of the first order did not exceed 60%, but of inflorescences of the second and third orders was 75–78 %. Infectious structures of five fungi genera (Alternaria, Cladosporium, Fusarium, Mucor, Stachybotrys) were found on the achenia. To increase germination, it is recommended to conduct stratification at a temperature of +4–5°C for at least 60 days. It was concluded that seed crops of pale purple coneflower can be used more rationally by harvesting inflorescences of the fourth and higher orders for pharmaceutical needs. Taking into account the biological characteristics of the crop will contribute to increasing the yield and ensuring the stable cultivation of this promising plant.Publication Formation of pale purple coneflower (Echinacea pallida (Nutt.) Nutt.) seed productivity in the conditions of the Left-Bank Forest-Steppe of Ukraine(2025) Pospielov, S. V.; Pospielova, G. D.; Zezekalo, Ye.; Onipko, V. V.; Manachynskyi, O.; Поспєлов, Сергій Вікторович; Поспєлова, Ганна Дмитрівна; Зезекало, Є. О.; Оніпко, Валентина Володимирівна; Маначинський, О. І.The study results of seed productivity of pale purple coneflower (Echinacea pallida (Nutt.) Nutt.), a promising medicinal and honey crop are presented. The research was conducted in the conditions of production plantations of Poltava region. It was established that at the early stages of ontogenesis, pale purple coneflower developed slowly: the first sprouts appeared 11–15 days after sowing and this period extended to 20–25 days. The cotyledon leaf phase lasted about for 7–9 days, and the first true leaf was formed during 25–32 days. The above-ground part and root system grew slowly in the first two months, their development accelerated from July. By the end of the vegetation, the plant formed a rosette of leaves and a fleshy vertically thickened rhizome. The generative period of pale purple coneflower began from the second year of growing season. Flowering lasted on the average for 46–52 days, starting in June. Plants reached a height of 85 cm, forming from 1 to 9 generative stems (on the average – 5.4). The average number of seeds per plant made 2770 pieces, and thousand-seed weight varied within 2.3–3.55 g. The morphometric study of the parameters of different orders’ inflorescences on the shoot shows that the anthodia of the first-fourth orders were characterized by the largest diameter (3.02–3.60 cm) and the height of the inflorescences (2.44–3.25 cm). The first three inflorescences provided 68 % of the total seeds’ weight from the plant, which indicates their highest productivity and value. It is emphasized that the sowing qualities of pale purple coneflower seeds are limited by a long period of organic dormancy. Laboratory germination of freshly harvested seeds from inflorescences of the first order did not exceed 60%, but of inflorescences of the second and third orders was 75–78 %. Infectious structures of five fungi genera (Alternaria, Cladosporium, Fusarium, Mucor, Stachybotrys) were found on the achenia. To increase germination, it is recommended to conduct stratification at a temperature of +4–5°C for at least 60 days. It was concluded that seed crops of pale purple coneflower can be used more rationally by harvesting inflorescences of the fourth and higher orders for pharmaceutical needs. Taking into account the biological characteristics of the crop will contribute to increasing the yield and ensuring the stable cultivation of this promising plant.Item Fungistatic Properties of Lectin-containing Extracts of Medicinal Plants(2019) Поспєлов, Сергій Вікторович; Поспєлова, Ганна ДмитрівнаItem Geoinformation monitoring of the tourist industry potential of the territory(2023) Shevchuk, S. M.; Laslo, O. O.; Onipko, V. V.; Шевчук, Сергій Миколайович; Ласло, Оксана Олександрівна; Оніпко, Валентина ВолодимирівнаIn the conditions of the digital economy, data exchange in the tourism information support system takes place mainly in real time. GIS, gradually replacing traditional tools, allows you to represent the process of tourist service in the form of interactive digital services. The application of GIS in the tourism and hospitality industry is of particular importance for travel planning, online booking, determining the location and recreational potential of destinations, support systems and decision-making.Item Global climate change in Ukraine: ways to adapt to environmental anomalies. /Глобальні кліматичні зміни в Україні: шляхи адаптації до аномалій у навколишньому середовищі.(2020) Laslo, O. O.; Dychenko, O. Yu. ; Ласло, Оксана Олександрівна ; Диченко, Оксана ЮріївнаItem Impact of organic cultivation technology of fiber hemp (Cannabis Sativa L.) on soil agrochemical and bioecological properties(2023) Pylypchenko, A. V.; Marenych, M. M.; Hanhur, V. V.; Semenov, A. O.; Korotkova, I. V.; Rozhkov, A. O.; Karpuk, L. M.; Laslo, O. O.; Marinich, L. H.; Ponomarenko, S.; Пилипченко, Андрій Васильович; Маренич, Микола Миколайович; Гангур, Володимир Васильович; Семенов, Анатолій Олексійович; Короткова, Ірина Валентинівна; Рожков, А. О.; Ласло, Оксана Олександрівна; Марініч, Любов ГригорівнаResearch into the correlations among components of soil biota is of significant importance for effective management of agroecosystems in organic agricultural production. Organic cultivation technologies contribute to increased nitrogen and phosphorus content in the soil, while reducing levels of P2O5 and K2O compared to inorganic methods. The influence of organic residue decomposers on macroelement composition in the soil has been examined, revealing a minimal impact on their levels. Organic technologies promote an augmentation of microorganisms, although there is a potential risk of heightened disease pathogens. It has been observed that under organic cultivation conditions, there is more intense tissue degradation, potentially attributed to higher microorganism activity. Transitional cultivation methods yield lower rates of degradation in comparison to organic techniques. The impact of organic technologies on the quantity of earthworms, nematodes, and springtails in the soil has been investigated. Organic practices have shown to increase their population, creating a favorable environment for soil biological indicators. Particular attention is given to correlation relationships between microorganisms responsible for nitrogen and phosphorus accumulation and the fungal component. High correlation values (r = 0.72–0.89) underscore the significance of comprehending these associations when employing organic cultivation methods. The study of correlations among soil biota components in organic production presents a promising task for the effective utilization of resources and the assurance of sustainable agroecosystem development.Publication Light pollution from led lighting systems and ways of reducing its environmental consequences(2025-11-11) Сахно, Тамара Вікторівна; Sakhno, T. V.; Кожушко, Г. М.; Kozhushko, G. M.; Назаренко, В. І.; Nazarenko, V. I.Light pollution (LP) is recognized as a global environmental problem. The need of reducing the level of LP is emphasized not only for the external environment, but also for residential premises. The aim of the study – is to analyze the literature data and normative-methodological acts regarding LP, its negative impact on the environment and human health, prevention measures of justification of measures to reduce the levels of light pollution from outdoor lighting systems, and development of recommendations for their further improvement.Publication Non-visual effects of light and their significance in led lighting systems designing: a critical review of the integrated lighting problem(2025-11-11) Кожушко, Г. М.; Kozhushko H.M ,; Сахно, Тамара Вікторівна; Sakhno, T. V.; Назаренко, В. І.; Nazarenko, V. I.In addition to ensuring the human visual function, visible light has non-visual biological and psychological effects. The non-visual effects of light affect a human's health, well-being, activity and sleep. Comfortable lighting that harmoniously combines both visual and non-visual effects and creates physiological and psychological benefits for people is defined as "integrated lighting". Modern standards for artificial lighting focus only on visual effects, visual comfort and energy efficiency and do not refer to the non-visual impact of light on humans. Recently, a number of national and industry standards have been developed, as well as expert proposals, which provide recommendations regarding the regulation of parameters of integrated lighting systems, but these documents have not been agreed upon in accordance with an accredited standards development process.Publication Possibility of obtaining hyaluronic acid from cyanobacteria(2025-06-13) Kozlovs’ka, T.; Malovanyy, M.; Nykyforov, V.; Novokhatko, O.; Liuta, O.; Tymchuk, I.; Onipko, V. V.; Оніпко, Валентина ВолодимирівнаThe results of studies on the possible producing valuable substances from cyanobacterial biomass are presented. It is shown that the main source of hyaluronic acid is the cyanobacteria from surface waters known as Microcystis aeruginosa and cyanobacterial associations of actinomycetes. The possibility of hyaluronic acid extraction has been experimentally proven. The dynamics of its quantitative characteristics were determined.