Abstract:The article presents the results of mathematical modeling based on the construction and use of various images of the object, process or system. The research involves the study of the dependence of the level of productivity and valuable farming traits of corn hybrids in the form of mathematical models. Field research was carried out during 2011-2017 on the experimental fields of the Department of Crop Production, Breeding and Bioenergy Crops of Vinnytsia National Agrarian University, at the state enterprise “Re… Show more
“…The Government of Ukraine has chosen a strategic course for development in the agrarian and industrial direction [8]. However, in order to successfully enter the western markets, it is necessary to ensure, first of all, the competitiveness of our products, which is achieved by the complex mechanization of technological processes, reducing labor costs, increasing the yield and quality of the obtained products [2], [11].…”
The article is devoted to the problem of the reduction of tubers mechanical damages while providing qualitative indicators of the potato heap separation process. Theoretical and experimental dependences of the influence of design and kinematic parameters of the machine operation on the quality performance are obtained. Within the field of experimental studies, a field installation was made to investigate the potato harvester as a whole on the efficiency of separation, the degree of damage, the magnitude of losses and the total capacity for aggregation. Comparison of the results of theoretical and experimental studies showed that the developed mathematical model of the process of separation of potato heap is adequate.
“…The Government of Ukraine has chosen a strategic course for development in the agrarian and industrial direction [8]. However, in order to successfully enter the western markets, it is necessary to ensure, first of all, the competitiveness of our products, which is achieved by the complex mechanization of technological processes, reducing labor costs, increasing the yield and quality of the obtained products [2], [11].…”
The article is devoted to the problem of the reduction of tubers mechanical damages while providing qualitative indicators of the potato heap separation process. Theoretical and experimental dependences of the influence of design and kinematic parameters of the machine operation on the quality performance are obtained. Within the field of experimental studies, a field installation was made to investigate the potato harvester as a whole on the efficiency of separation, the degree of damage, the magnitude of losses and the total capacity for aggregation. Comparison of the results of theoretical and experimental studies showed that the developed mathematical model of the process of separation of potato heap is adequate.
“…Linear gain was measured every 10 days. The height of the plants was recorded using a Suunto altimeter with an accuracy of 0.5 m, and the height of the small plants -using a rail with up to 0.1 m accuracy [12].…”
The article analyzes the peculiarities of black pine reproduction and identifies the most promising methods of propagation for the territory of Vinnytsia city (Ukraine). Having analyzed the germination capacity of the black pine seed material, we found that the percentage of seed germination ranged from 38% (courtyards) to 70% (“Podillya” botanical garden). Examining the duration of black pine seedlings emergence, we found that in almost all objects of the city the largest number of seedlings were established on the 7th day (about 35 pcs.), then the process declined, and the smallest number appeared on the 13th day (about 5-7 pcs.). Studying the black pine propagation by cuttings, we found that when fed with two different rooting stimulants, the best result was obtained with the application of Korenevin (48 pieces), and a slightly lower acceptance rate was demonstrated with the use of Epine (about 34 pieces).
“…It is possible to compare Australia with Ukraine, which is also specialised in agricultural production but has quite different natural and climatic conditions, and much more fertile soils (Chancellor et al, 2021;Koshkalda et al, 2020). The technological part of agriculture grows rapidly and has recently come to use nanotechnology, which helps to create hybrids of existing plant species, increasing their economic value (Palamarchuk et al, 2021;Antle, 2019). The use of manual labour is still widespread in Ukraine, which, despite all climatic advantages, makes the agricultural sector of Ukraine much less competitive.…”
The agricultural sector is one of the main branches of the Australian economy and of the country's exports. This contributes to the considerable level of agricultural development and resource specialisation in international trade in general. Ukraine in this respect is like Australia, which makes the current state of the agrarian sector in both countries relevant. The purpose of this study was to investigate the state of the agricultural sector in Australia and find elements of development that would help change the Ukrainian agriculture. Statistical methods, such as graphical and statistical analysis, became the main methods in the study. This is conditioned upon the formation of conclusions mostly based on statistical information, graphs and tables presented in the article and constructed with statistical TradeMap. During the study, the author concluded that the fate of agricultural exports in the country was reduced due to the current orientation of the country towards the export of resources, namely iron. Within the structure of export of agricultural products, considerable changes are taking place, the main of which is the transition to production of animal products. Ukraine may adopt some features of the sector in Australia, namely how the country is conducting investment policy in the sector. Nevertheless, it was found that there are significant differences in the agricultural sector of both countries. Because of this, it is impossible to completely change the plan of operation of the Australian agriculture. Research on the future development of the industry in Australia, considering current trends and their impact on foreign policy and trade in the country, may be promising. This article will be useful for studying the functioning of the economy of Australia and Ukraine, namely their agricultural sectors; to form the national policy of the agrarian sector and foreign trade; for students to learn economic disciplines and write corresponding theses
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