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• Biofuel regulations in the USA and the EU

  25-31

  Orsolya Nagy

  Views:

  113

  Climate change, the increasing dependency on crude oil and other fossile fuels, the expanding import and the increasing energy costs make the world’s societies and its economies vulnerable.

   The development of effective renewable energy resources has been a priority for the US since the first oil embargo. While there was only little progress for around two decades, biofuel use and production has been showing a rapidly increasing tendency since the mid 90’s.

   The EU’s objective of renewable energy resources is one of the main priorities of the Europe 2020 strategy. The European Union aims to increase the share of energy produced from renewable resources in the whole energy supply and by 10% in the transport-related energy supply by 20% until 2020.

   The renewable energy sector is the only one which is able to reduce GHG emission and pollution while utilising local energy resources and stimulating cutting edge industrial sectors; therefore, it is indispensable to develop a proper framework and regulation for supporting renewable energies.

• Biofuel production and its quality standards

  137-141

  Orsolya Nagy

  Views:

  110

  The increasing consumption due to the decreasing amount of fossile energy resources, as well as the increasing fuel prices and living standard will justify the better utilisation of the opportunities lying in biofuel production. Certain countries produce biofuels for their own use or they even export them. However, there are countries which have not decided which feedstock and technology to use. Biofuel – mainly biodiesel and bioethanol – use greatly contributes to environmental protection, decreased CO₂ emission and reduced greenhouse effect.

• Some basic problems concerning world animal production at the beginning of the XXI century

  77-80

  Péter Horn

  Views:

  111

  The author summarizes the main new challenges facing animal agriculture: growing GDP in many countries increasing animal protein demand, bioenergy industry as a new player using potential food or feedstuffs, increasing demand, Growing water and land scarcity, weaking the position of plant agriculture, feed production. Forecasts are summarized regarding the magnitude of meat consumption increases, and the possible plant biomass quantities required additionally in the next 20 years to cover the needs of food, feed and biofuel on a global scale.
  Efficiencies of various animal production sectors, poultry, pork, beef, mutton meat, milk and eggs and their environmental footprints are compared, summarizing the most important research  results concerning UK, USA, OECD evaluations. Intensive systems using highly productive plant and animal population will play an even more important role in the future especially in poultry, pig, milk and aquaculture production system being efficient users of resources (feed, water, land) and the environmental foot print is smaller per unit product.

• Energy forests or vineyards?

  237-240

  Gábor Koncz

  Mária Kozsdáné Bata

  Hajnalka Szabóné Pap

  Views:

  67

  This paper primarily aims at giving an introduction to an alternative opportunity for vineyards owners many of whom have come to a
  decision about elimination of their vineyards. The paper is focusing on the Mátra wine-region as a study area, which is the largest mountain
  wine region in Hungary where more than one third of supported clearing of vineyards have been implemented in the last few years. The
  abandoning of vineyards is explicable in more than one way such as very small average size of land or the increasing mean age of owners
  etc. The fundamental reason is the chronic doubtfulness of the grape and wine market and the low level of overall profitability of production.
  Grape production has a long tradition in this region, thus the disappearance of vineyards caused serious problems in land use through the
  absolute lack of plans for the future. The popularity of biomass production in the press and the biofuel resultant from vine stocks raise
  interest for short rotation forestry within a group of farmers. Short rotation forestry offers a new chance for some farmers to cut oneself adrift
  from the harmful effects of the market of agricultural products.

• Objectives of the EU in the field of biomass use and utilisation

  9-12

  Zoltán Balla

  Views:

  106

  The energy independence very important for the European Union, while simultaneously sparing the natural environment in order to increase the use of renewable energy sources . A further development is the key issue of how renewable energy sources available can be better utilized to improve the efficiency of economic competitiveness. EU renewable energy policy is determined by five principles : The first is the environment, including the carbon dioxide and other pollutants to reduce emissions . The second increase energy security and at the same time reducing dependence on imports. The third aspect of local and regional development. With this realignment of economic and social development levels of different areas they want to achieve. This point is closely related to rural development and create new jobs . The transformation of the agricultural structure is an important aspect , which is that they can reduce the overproduction of food by providing alternative land use options , such as the cultivation of energy crops.

• Evaluation of sweet sorghum and sudangrass varieties by the viewpoint of bioethanol production

  57-61

  János Jóvér

  Views:

  122

  Bioenergy and biofuels are very important in today’s energy policy. These kinds of energy resources have several advantages against fossil fuels. Environmental protection is a cardinal point of widespreading these technologies but the economic considerations are important as well. In order to improve the rate of the renewable energy in the energy consumption, the European Union settled down a program which determines a minimum ratio of renewable energy in the energy consumption for each member country of the EU. To fulfil the requirements bioenergy and biofuels should be produced. This production procedure needs adequate stocks which are commonly agricultural products.
  One of the promising stocks is sorghum. This plant fits for bioethanol production due to its juice content being rich in sugar. In this study six sweet sorghum hybrids, two sudangrass hybrids and a sudangrass variety have been evaluated to determine their theorical ethanol production capacity.
  On the score of the results of the year 2009 it can be set that sudangrasses have a lower theorical ethanol capacity than sweet sorghums have. In the case of sweet sorghums 1860.29–2615.47 l ha^-1 ethanol yields had been calculated, while the sudangrasses had only 622.96–801.03 l ha^-1. After that throughout three years (2011–2013) the sweet sorghum hybrids have been evaluated in order to determine the fluctuations of the ethanol production capacity caused by the impact of the years. As a result 2425.44–4043.6 l ha^-1 theorical ethanol capacities have been calculated, which means that sweet sorghums can be an adequate stock to produce bioethanol.