Mykola Kharytonov
Biographic Data
| ID | 6888048 |
|---|---|
| NAME | Mykola Kharytonov |
| GIVEN NAMES | Mykola |
| FAMILY NAME | Kharytonov |
| SIGNATURE | KHARYTONOV M |
| AFFILIATIONS | Dnipro State Agrarian and Economic University |
| ORCID | 0000-0002-4650-5819 |
| VERIFIED | Yes |
| TOTAL WORKS | 10 |
| TOTAL CITATIONS | 0 |
| WORKS AS AUTHOR | 10 |
| WORKS AS EDITOR | 0 |
| FIRST PUBLICATION YEAR | 2018 |
| LATEST PUBLICATION YEAR | 2025 |
| H-INDEX | 0 |
Short-term spectral indication of the salinity effects on avocado rootstocks growth caused with ground and regenerated wastewater irrigation
An avocado rootstocks were grown in a pot experiment with lysimeters to evaluate the effect of three irrigation options: groundwater (GW), regenerated wastewater (RWW), and a 1:1 mixture of both (GW/RWW-1:1). Plant water and salt stress assessment was carried out using leaf non-destructive and destructive methods during the fifth and sixth months of the experiment. The avocado leaf blade area decreased by the end of observations in the GW/RWW-1:1…
The effect of biodigestate and sewage sludge on the switchgrass growth, biomass elemental composition and thermal characteristics
Low-productive lands that are unsuitable for growing agricultural products can be successfully used to create plantations of energy crops. Depending on the dose, productivity increased by 1.7-2.6 times. In the first years, the biomass yield after adding biodigestate (BD) was 10-20% higher than in the experiment with sewage sludge (SS). The effect of sewage sludge application was longer than that of biodigestate. The content of mobile phosphorus i…
Prerequisites for using trace and rare-earth elements from the fly ash of Ukrainian thermal power stations
The rare-earth element (REE) concentrations, outlook coefficient and critical parameters of coal fly ash (CFA) samples from three Ukrainian thermal power stations – Prydniprovska, Zmiivska and Kryvorizka TPS – are favourable for recovery of rare-earth elements, particularly following flotation treatment to remove unburnt carbon which also improves their performance as a component of concrete. Unburnt carbon was characterised by differential therm…
Drought and airborne emissions in Dnipropetrovsk region, Ukraine
Global heating is upon us and, in Ukraine, drought is exacerbated by the toxic emissions of heavy industry. In 2022–4, compared with 2019–21, the Dnipropetrovsk region of Ukraine experienced an increase of land surface temperature of more than 5°C in the range of >30°C affecting 9 611 km2 (27% of the region). Comparative assessment revealed lands with a very low surface soil moisture fraction < 0.16) across half of the region by the end of the st…
Photosynthetic activity of sweet sorghum fertilised by sewage sludge
Sewage sludge is a promising fertiliser for sweet sorghum growing on marginal land. We investigate the effects of different doses of sludge on the characteristics of chlorophyll fluorescence. Two types of sewage sludge were used: without flocculant and treated with flocculant. Sludge application helps to reduce the amount of inactive chlorophyll in the reaction centres, increases photosynthetic activity, and reduces the sensitivity of the photosy…
Production of edible lecithin from sunflower-oil refining waste
The spent meal from the production of sunflower oil is a phosphatide concentrate that contains 50–60% of phospholipids (lecithin). We have developed a methodology for the defatting of phosphatide concentrate with isopropyl alcohol at an elevated temperature and low ratios of the phosphatide concentrate to the extractant, and subsequent identification of the components of food lecithin. Extraction at 60°C attains a relatively high yield of phospho…
Application of flocculated sewage sludge for growing miscanthus on post-mining lands
Miscanthus yields well on raw subsoil where organic matter and nutrients are supplied by sewage sludge; the yield is directly dependent on the amount of sludge applied; the greatest productivity (12.9t/ha) was achieved by adding 60t/ha of flocculated sludge. Among the macronutrients, nitrogen is most actively absorbed, the intensity of biomass accumulation of phosphorus and potassium is much lower; other essential elements can be ranked as Fe → Z…
Thermal analysis of aboveground biomass of the two species cultivated in artificial forest plantations in marginal lands of Ukraine
The thermal degradation of the wood and bark of the Black locust (Robinia pseudoacacia L.) and Scots pine (Pinus sylvestris L.) cultivated as monocultures in marginal lands of Ukraine has been investigated using thermogravimetric methods of differential thermal analysis. The activation energy of the trees’ bark and wood destruction processes were calculated for each temperature range. Comparison of DTA curves showed that the thermal effect of oxi…
Elemental composition of Miscanthus biomass grown on different kinds of Technosols
Miscanthus has been grown on four kinds of Technosols. These soil materials have relatively low levels of macronutrients and imperfect nutrient balance. Even so, miscanthus is able to produce substantial, stable yields from the third year of cultivation. The poorest yields were obtained on dark-grey schist clay; the highest on loess-like loam and red-brown clay. Miscanthus actively accumulates macronutrients, especially sulphur, whereas sodium an…
Managing Efficiency in Higher Education
The rating positions of most Ukrainian higher educational establishments in the global international environment have not received any positive changes over a long period of time. Progressive regulatory changes are necessary to stimulate internal university reforms within the context of European integration. The purpose of the present work is to develop organizational-methodological measures in order to increase the efficiency of scientific-pedag…
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Managing Efficiency in Higher Education
The rating positions of most Ukrainian higher educational establishments in the global international environment have not received any positive changes over a long period of time. Progressive regulatory changes are necessary to stimulate internal university reforms within the context of European integration. The purpose of the present work is to develop organizational-methodological measures in order to increase the efficiency of scientific-pedag…
Thermal analysis of aboveground biomass of the two species cultivated in artificial forest plantations in marginal lands of Ukraine
The thermal degradation of the wood and bark of the Black locust (Robinia pseudoacacia L.) and Scots pine (Pinus sylvestris L.) cultivated as monocultures in marginal lands of Ukraine has been investigated using thermogravimetric methods of differential thermal analysis. The activation energy of the trees’ bark and wood destruction processes were calculated for each temperature range. Comparison of DTA curves showed that the thermal effect of oxi…
Elemental composition of Miscanthus biomass grown on different kinds of Technosols
Miscanthus has been grown on four kinds of Technosols. These soil materials have relatively low levels of macronutrients and imperfect nutrient balance. Even so, miscanthus is able to produce substantial, stable yields from the third year of cultivation. The poorest yields were obtained on dark-grey schist clay; the highest on loess-like loam and red-brown clay. Miscanthus actively accumulates macronutrients, especially sulphur, whereas sodium an…
Photosynthetic activity of sweet sorghum fertilised by sewage sludge
Sewage sludge is a promising fertiliser for sweet sorghum growing on marginal land. We investigate the effects of different doses of sludge on the characteristics of chlorophyll fluorescence. Two types of sewage sludge were used: without flocculant and treated with flocculant. Sludge application helps to reduce the amount of inactive chlorophyll in the reaction centres, increases photosynthetic activity, and reduces the sensitivity of the photosy…
Production of edible lecithin from sunflower-oil refining waste
The spent meal from the production of sunflower oil is a phosphatide concentrate that contains 50–60% of phospholipids (lecithin). We have developed a methodology for the defatting of phosphatide concentrate with isopropyl alcohol at an elevated temperature and low ratios of the phosphatide concentrate to the extractant, and subsequent identification of the components of food lecithin. Extraction at 60°C attains a relatively high yield of phospho…
Application of flocculated sewage sludge for growing miscanthus on post-mining lands
Miscanthus yields well on raw subsoil where organic matter and nutrients are supplied by sewage sludge; the yield is directly dependent on the amount of sludge applied; the greatest productivity (12.9t/ha) was achieved by adding 60t/ha of flocculated sludge. Among the macronutrients, nitrogen is most actively absorbed, the intensity of biomass accumulation of phosphorus and potassium is much lower; other essential elements can be ranked as Fe → Z…
Short-term spectral indication of the salinity effects on avocado rootstocks growth caused with ground and regenerated wastewater irrigation
An avocado rootstocks were grown in a pot experiment with lysimeters to evaluate the effect of three irrigation options: groundwater (GW), regenerated wastewater (RWW), and a 1:1 mixture of both (GW/RWW-1:1). Plant water and salt stress assessment was carried out using leaf non-destructive and destructive methods during the fifth and sixth months of the experiment. The avocado leaf blade area decreased by the end of observations in the GW/RWW-1:1…
The effect of biodigestate and sewage sludge on the switchgrass growth, biomass elemental composition and thermal characteristics
Low-productive lands that are unsuitable for growing agricultural products can be successfully used to create plantations of energy crops. Depending on the dose, productivity increased by 1.7-2.6 times. In the first years, the biomass yield after adding biodigestate (BD) was 10-20% higher than in the experiment with sewage sludge (SS). The effect of sewage sludge application was longer than that of biodigestate. The content of mobile phosphorus i…
Prerequisites for using trace and rare-earth elements from the fly ash of Ukrainian thermal power stations
The rare-earth element (REE) concentrations, outlook coefficient and critical parameters of coal fly ash (CFA) samples from three Ukrainian thermal power stations – Prydniprovska, Zmiivska and Kryvorizka TPS – are favourable for recovery of rare-earth elements, particularly following flotation treatment to remove unburnt carbon which also improves their performance as a component of concrete. Unburnt carbon was characterised by differential therm…
Drought and airborne emissions in Dnipropetrovsk region, Ukraine
Global heating is upon us and, in Ukraine, drought is exacerbated by the toxic emissions of heavy industry. In 2022–4, compared with 2019–21, the Dnipropetrovsk region of Ukraine experienced an increase of land surface temperature of more than 5°C in the range of >30°C affecting 9 611 km2 (27% of the region). Comparative assessment revealed lands with a very low surface soil moisture fraction < 0.16) across half of the region by the end of the st…
Environmental Science (8 works) · Agronomy (7 works) · Biology (7 works) · Bioenergy crop production and management (5 works) · Engineering (5 works) · Biomass (ecology) (4 works) · Chemistry (4 works) · Environmental Engineering (4 works) · Environmental Engineering (4 works) · Waste management (4 works)