production economics; farm management; agricultural policy; agricultural environmental issues; tourism; regional planning; rural development; methodology; marketing of agricultural and food products; international trade; development; sport management


Tests of differential diesel fuels in engine testing room

The portion of oil could be estimated 33 % of global primary energy consumption in 2012 (BP, 2012) and its average price – beside the products produced from it as well - significantly increased, unlike the demand for transport which has been reduced. This tendency is expected to remain unchanged in the long run, therefore, there is a great importance for the variety of diesel fuel distributors, in comparison of the ratio value for each of them, and replacing them with biodiesel can be used in the comparison. We executed 3 dynamometer measurements performed to determine three different dealers purchased diesel oil, some economical examinations of the diesel oil retail price, and the use of biodiesel all based on the expected economic studies in the literature studies of extra fuel consumption values. The results of these tests indicate that the differences of consumption between diesel oils can be up to 5 %, the conclusion is that distinctions of diesel oil consumptions are almost the same when we tested the differences between diesel oil and biodiesel. This means we can reach the same result with a high quality biodiesel as with poor quality diesel oil. This also means that– below 20% of mixing ratio we can easily choose by prices alone. Between these prices and products ( D1, D2, D3), we can save 4.8% diesel oil by using D2, 6.2% diesel oil by using D3 compared to D1. There could be a little revolution variance (D2: 2.9-6%, D3: 4.9- 7.1%), but this variance is under 1% so it is negligible.

Liquid bio-fuels in Hungary: effects and contradictions

The increase of living standard requires ever more energy, despite energy saving measures. Domestic growth was 100 PJ between 2000 and 2006, and 77% of the total utilization was importe (Hungarian Central Statistical Office, 2008).Sustainability was endangered not only in our energy and commerce policy. Our domestic natural conditions are suitable for plant production; however, the stagnation of the domestic population and decreasing livestock numbers restrict in land marketing. Therefore, significant surpluses from year to year had to be stored and sold abroad, and the fact that the interventional purchase of corn and the expected stringent new EU regulation of the sugar beet sector, make the strategic significance of these branches uncertain. The difficult marketing opportunities make the better utilization of our opportunities in producing liquid bio-fuels possible from marketing aspects, while environmental issues and realizing the EU directions enforce to do so in a longer term. Over the short term, agricultural and competitive aspects will determine its spread, which cause different effects in Europe in comparison with the developing countries. According to Nábrádi-Ficzeréné Nagymihály, 2008, one of the breaking points of Hungarian agriculture lies in the utilization of alternative energy sources. During the past period, many contradictory opinions came forward relating to economies, agricultural effects, food risks as well as the energetic and environmental efficiency of bio-fuels. One thing is certain: these fuels are already used today and their significance has been increasing. Although due to technological development, spread of new products and processes (cellulose-based bioethanol, bioethanol, biogas, hydrogen, biomethane) will obviously have to be expected in the future, at present biodiesel and bioethanol are determent among bio-fuels, thus I deal with these as well as their energetic and agricultural effects in my study.

The role of beekeeping in production of oil crops

Production of sunflower oil are expected to serve larger and larger extent – over the demand of food industry and chemical industry – biofuel production. This could be especially true for that areas where climate is not allowed to grow winter rape safely and economically. Ecological role of honey-bees can be considered undoubtful in preservation of biodiversity of flora and fauna. I analyse the following problems in our study:
• What is the significance of oil plants in European and Hungarian energy production?
• How influence pollination the yields and the safety of production of oil plants?
• What is the role of oil plants in the development of production structure of beekeeping?
• What are the economical advantages of the above-mentioned effects?