https://repository.utm.md/handle/5014/22826 2026-04-15T11:33:19Z 2026-04-15T11:33:19Z YEREMENKO, Oksana ONYSCHENKO, Olga https://repository.utm.md/handle/5014/22983 2023-06-15T09:48:26Z 2021-01-01T00:00:00Z

Economic effeciency of intensive technology of sunflower cultivation in the conditions of the Southern Steppe of Ukraine YEREMENKO, Oksana; ONYSCHENKO, Olga The article concerns the issues of the state of sunflower seed production in the Southern Steppe of Ukraine and country as a whole. Studies (2017-2019) were carried out on tillage of this crop together with the use of a modified plant growth regulator AKM-K1, AKM-K2 with a different treatment scheme, including control without treatment, seed encrustation, spraying of plants during the growing season. Based on the results of the experiment and statistical data of Zaporizhzhya region and country as a whole, economic calculations were carried out, the dynamics of sunflower yield were analysed, taking its maximum and minimum values into account, the results of the economic efficiency of sunflower cultivation in Zaporizhzhya region were summed up, and recommendations were given to increase profitability level. The issue of increasing sunflower productivity in arid regions, with the introduction of low-cost and at the same time effective ways to increase its yield, is discussed. The establishment of experimental plots and carrying out research on them was done taking into account the selection of the best hybrids, a high level of agricultural technology, the use of mineral fertilizers in optimal doses, and also the system of integrated protection of seeds and plants from pests, diseases and weeds.

2021-01-01T00:00:00Z MAREŠOVA, Denisa MAREŠ, Kryštof ALEXIOU-IVANOVA, Tatiana SATYAKTI, Yayan https://repository.utm.md/handle/5014/22978 2023-06-15T09:49:15Z 2021-01-01T00:00:00Z

Environmental impact assessment of different temporary waste disposal sites in Bandung, Indonesia: further step to sustainable waste management MAREŠOVA, Denisa; MAREŠ, Kryštof; ALEXIOU-IVANOVA, Tatiana; SATYAKTI, Yayan The population growth, urbanization, and social lifestyle changes lead to the generation of rapidly growing amounts of municipal solid waste (MSW). Severe environmental issues and health risks associated with improper municipal solid waste management (MSWM) are important challenges in developing countries like Indonesia. In Bandung city, municipal solid waste is collected and stored in inappropriate temporary waste disposal sites (TWDS). The objective of this research is to evaluate environmental impact of various TWDS located in four districts of Bandung city. Subsequently, the environmental impacts of these TWDS will be compared. A number of indicators, e.g., the daily volume of incoming waste, waste treatment facilities, sanitation facilities, waste composition, and more, will be included in the measurement of the environmental impact. Furthermore, chemical and toxicological analysis of leachate and soil will be included in the environmental impacts’ measurements. Samples for laboratory testing will be collected directly on the TWDS and the surroundings. This research follows our previous work that has been the first step in a detailed waste management picture in Bandung city.

2021-01-01T00:00:00Z PARAMONOVA, Kseniia IVANOVA, Tatiana MALIK, Aakash https://repository.utm.md/handle/5014/22974 2023-06-15T09:49:40Z 2021-01-01T00:00:00Z

Exploring the potential of invasive plant Sosnowsky’s hogweed for densified biofuels production PARAMONOVA, Kseniia; IVANOVA, Tatiana; MALIK, Aakash The study focuses on the determination of biofuel parameters of invasive Sosnowsky’s hogweed (Heracleum sosnowskyi) biomass. Utilization of available waste biomass can be one of the most efficient ways to prevent spreading, so this approach does not promote controlled cultivation of Sosnowsky’s hogweed biomass for profitable solid biofuels production. Laboratory determination of the main fuel-energy properties showed that the gross calorific value of studied biomass is 15.1 MJ/kg (as received) and 16.5 MJ/kg (dry basis). Ash content analysis resulted in 10.7% (dry basis) and 10.8% (as received with 10.1% moisture content of). Choosing the appropriate harvest time may most probably affect solid biofuels quality as well as biomass to biofuels processing pathway, thus more studies are required to find an optimal and feasible solution.

2021-01-01T00:00:00Z RAZANOVA, Olena SKOROMNA, Oksana https://repository.utm.md/handle/5014/22970 2023-06-15T09:50:04Z 2021-01-01T00:00:00Z

Lead and cadmium transition in soil – plant – honey system RAZANOVA, Olena; SKOROMNA, Oksana The quality of honey selected from apiaries located in the Vinnytsia region of the central part of Ukraine was assessed by the concentration of lead and cadmium. The study was conducted in different ecological zones. To determine the parameters of the transition of cadmium and lead into honey, samples of soil, plant generative organs and honey were taken. It was found that the content of heavy metals in honey depended on the floristic composition and flowering period of honey plants from which bees collected nectar, the location of honeybees and the concentration of heavy metals in the soil. The content of lead and cadmium was much lower than the maximum permissible concentrations. In spring honey plants, there is less accumulation of lead than in summer plants. The level of lead transfer from soil to honey plants was 2.2-2.6%, and from plants to honey – 3.7-7.4%. The transition of cadmium from soil to plants – 60-84.6%, and from plants to honey – from 2.6 to 8.8% is revealed. The content of lead and cadmium in honey reduced to a straight line distance from the source of increased environmental load. The level of concentration of lead and cadmium in the studied samples of honey does not exceed the permissible safety standards.

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