Факультет біології, географії та екології
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Item RICE (ORYZA SATIVA L.) YIELDS DEPENDING ON CULTIVARS AND QUALITY OF IRRIGATION WATER(2018) Ushkarenko, V. O.; Dementieva, O. I.; Pryimak, V. V.; Lavrenko, S. O.; Lavrenko, N. M.; Shepel, A. V.; Siletska, O. V.; Приймак, В. В.The goal of our study was to determine whether they are appropriate for utilization by the reuse for irrigation of rice. Field experiments were conducted during the period from 2012 to 2015 at the rice checks of the Institute of Rice of the NAAS of Ukraine. We studied the effect of the mixed water containing 25% of the effluent and drainage water diluted with the pure water of the Dnipro river on the grain yields of different rice cultivars, viz. Prestyzh, Serpnevyi, Ontario and Vikont. The results of the study proved the possibility of reuse of the mixed effluent and drainage water for irrigation of rice. There was no significant decrease in the crop productivity: yield losses averaged just to 4.45-5.43% depending on the cultivar. Besides, we established that the best yielding capacity in the experiments was provided by the middle-ripening rice cultivar Vikont with grain yields of 9.73-10.26 t/ha depending on the water quality used for its irrigation. We recommend reuse of the effluent and drainage water for irrigation of rice in the check systems to improve the environmental conditions of the Black Sea coastal areas.Item ENVIRONMENTAL ASSESSMENT OF RICE GRAINS (ORYZA SATIVA L.) DEPENDING ON CULTIVARS AND QUALITY OF IRRIGATION WATER(2019) Lavrenko, S. O.; Ushkarenko, V. O.; Dementieva, O. I.; Lavrenko, N. M.; Pryimak, V. V.; Shepel, A. V.; Siletska, O. V.The main goal of our study was to determine the environmental feasibility of growing rice varieties under conditions of irrigation using water of different qualities that were obtained by mixing rice systems effluents with pure water from the Dnipro River, and conclude whether or not the effluents are suitable for crop irrigation after previous amelioration, and to determine the level of quality and ecological danger of rice grains for further processing. Field experiments were conducted from 2012 to 2015 at the rice checks of the Institute of Rice at the National Academy of Agrarian Sciences (NAAS) of Ukraine. We studied the effect of mixed water containing 25% of the effluent and drainage water diluted with the pure water of the Dnipro River on the quality indices (content of protein, fat, starch) and the content of heavy metals, residues of pesticides, and nitrates of different rice cultivars, such as Prestyzh, Serpnevyi, Ontario, and Vikont. The results of the study proved the possibility of reuse of the mixed effluent and drainage water for the irrigation of rice. We recommend reuse of the effluent and drainage water for the irrigation of rice in the check systems, which will not affect the yield nor quality of rice grains and related crops, and will provide a high economic effect, ecological balance of the water resources of the Black Sea, and will become a guarantor of quality recreation of people in the recreational zone.Item Environmental Assessment of Rice Grains (Oryza sativa L.) Depending on Cultivars and Quality of Irrigation Water.(2019) Lavrenko, N. M.; Ushkarenko, V. O.; Dementieva, O. I.; Lavrenko, N. M.; Pryimak, V. V.; Shepel, A. V.; Siletska, O. V.; Приймак, В. В.The main goal of our study was to determine the environmental feasibility of growing rice varieties under conditions of irrigation using water of different qualities that were obtained by mixing rice systems effluents with pure water from the Dnipro River, and conclude whether or not the effluents are suitable for crop irrigation after previous amelioration, and to determine the level of quality and ecological danger of rice grains for further processing. Field experiments were conducted from 2012 to 2015 at the rice checks of the Institute of Rice at the National Academy of Agrarian Sciences (NAAS) of Ukraine. We studied the effect of mixed water containing 25% of the effluent and drainage water diluted with the pure water of the Dnipro River on the quality indices (content of protein, fat, starch) and the content of heavy metals, residues of pesticides, and nitrates of different rice cultivars, such as Prestyzh, Serpnevyi, Ontario, and Vikont. The results of the study proved the possibility of reuse of the mixed effluent and drainage water for the irrigation of rice. We recommend reuse of the effluent and drainage water for the irrigation of rice in the check systems, which will not affect the yield nor quality of rice grains and related crops, and will provide a high economic effect, ecological balance of the water resources of the Black Sea, and will become a guarantor of quality recreation of people in the recreational zone.Item Rice (Oryza sativa L.) Yields Depending on Cultivars and Quality of Irrigation Water(2018) Ushkarenko, V. O.; Dementieva, O. I.; Pryimak, V. V.; Lavrenko, S. О.; Lavrenko, N. M.; Shepel, A. V.; Siletska, О. V.; Приймак, В. В.The goal of our study was to determine whether they are appropriate for utilization by the reuse for irrigation of rice. Field experiments were conducted during the period from 2012 to 2015 at the rice checks of the Institute of Rice of the NAAS of Ukraine. We studied the effect of the mixed water containing 25% of the effluent and drainage water diluted with the pure water of the Dnipro river on the grain yields of different rice cultivars, viz. Prestyzh, Serpnevyi, Ontario and Vikont. The results of the study proved the possibility of reuse of the mixed effluent and drainage water for irrigation of rice. There was no significant decrease in the crop productivity: yield losses averaged just to 4.45-5.43% depending on the cultivar. Besides, we established that the best yielding capacity in the experiments was provided by the middle-ripening rice cultivar Vikont with grain yields of 9.73-10.26 t/ha depending on the water quality used for its irrigation. We recommend reuse of the effluent and drainage water for irrigation of rice in the check systems to improve the environmental conditions of the Black Sea coastal areas