Poltava State Agrarian Academy

Poltava, Ukraine

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Kalinichenko A.V.,Poltava State Agrarian Academy | Kalinichenko A.V.,University of Opole
Actual Problems of Economics | Year: 2014

Using the Dean Food Company as an example, the paper reviews the basic approaches to environmental protection in the successful US companies engaged in production, processing and marketing of milk and dairy products. © Antonina V. Kalinichenko, 2014.

Gollner G.,University of Natural Resources and Life Sciences, Vienna | Fedoseyenko D.,Poltava State Agrarian Academy | Grausgruber-Groeger S.,University of Natural Resources and Life Sciences, Vienna | Grausgruber H.,University of Natural Resources and Life Sciences, Vienna | And 2 more authors.
Romanian Agricultural Research | Year: 2016

Lucerne improves yields and quality of subsequent crops by fixing nitrogen and increasing soil organic matter. In the Ukrainian region of Poltava weather conditions have become more difficult for producing legumes over the past decades. While the biomass productivity of modern lucerne varieties is well known, data on the nitrogen fixation capacity are still missing. Therefore biomass and nitrogen fixation capacity of 4 Ukrainian varieties (Lidiya, Poltavchanka, Vira, Zaykevicha) were evaluated in two field trials in two subsequent years. The seasonal average forage yield of lucerne was 10.5-11.4 t ha-1 with no significant differences between the varieties, but with a better performance at 1st and 2nd harvest in the second year because of a successful field emergence and water supply. An analysis of the genotype-by-year interaction on two experimental sites indicated that the old varieties Poltavchanka and Zaykevicha were well adapted to the experimental site environment. These varieties gave consistently stable shoot dry matter yields in both vegetation periods. Biological nitrogen fixation (average of 155 kg N ha-1) and N-balance (average of -159 kg N ha-1) did not differ between the four varieties, therefore the benefit for subsequent crops should be the same or similar. © 2016, National Agricultural Research and Development Institute Fundulea. All rights reserved.

Fauna of chewing lice parasitizing Gallus gallus domesticus Linnaeus, 1758 (domestic chicken) in the Poltava Region was studied. Four species of chewing lice belonging to Menoponidae, Amblycera and Goniodidae, Ischnocera were identified. Of them, Menopon gallinae, Linnaeus, 1758 and Menacantus stramineus Nitzsch, 1818 are dominant, and Menacantus cornutus Schommer, 1913 and Goniocotes hologaster Nitzsch, 1838 are rarer. The prevalence and intensity of infestation of chewing lice on chickens and their localization on the host's body were studied. Ratio of body lengths is proposed as a character that can facilitate parasites' identification. © 2015 by V. A. Yevstafieva.

Smerdov A.,Poltava State Agrarian Academy | Petrovsky A.,Poltava State Agrarian Academy
Modern Problems of Radio Engineering, Telecommunications and Computer Science - Proceedings of the 10th International Conference, TCSET'2010 | Year: 2010

Biotechnical system of irradiating crop seeds with electro-magnetic field is described in the report. The results of laboratory and field testing different varieties of winter wheat are presented.

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Poltava State Agrarian Academy | Entity website

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PubMed | University of Warmia and Mazury, Poltava State Agrarian Academy and Lviv Polytechnic
Type: | Journal: Neural computation | Year: 2016

On the basis of the neurophysiological strength-duration (amplitude-duration) curve of neuron activation (which relates the threshold amplitude of a rectangular current pulse of neuron activation to the pulse duration), as well as with the use of activation energy constraint (the threshold curve corresponds to the energy threshold of neuron activation by a rectangular current pulse), an energy model of neuron activation by a single current pulse has been constructed. The constructed model of activation, which determines its spectral properties, is a bandpass filter. Under the condition of minimum-phase feature of the neuron activation model, on the basis of Hilbert transform, the possibilities of phase-frequency response calculation from its amplitude-frequency response have been considered. Approximation to the amplitude-frequency response by the response of the Butterworth filter of the first order, as well as obtaining the pulse response corresponding to this approximation, give us the possibility of analyzing the efficiency of activating current pulses of various shapes, including analysis in accordance with the energy constraint.

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