Jernej Turk
University of Maribor
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Publication
Featured researches published by Jernej Turk.
Journal of Sustainable Agriculture | 2006
Črtomir Rozman; Karmen Pazek; Franci Bavec; Martina Bavec; Jernej Turk; Darja Majkovič
ABSTRACT The nutritional, technological and processing characteristics of spelt wheat make it suitable for organic farming. Furthermore, spelt wheat can be directly processed into different kinds of food products on the farm itself, and represents additional business and market opportunities for organic farmers. In this paper we examine different spelt processing alternatives on a chosen organic farm in northeastern Slovenia. Simulation modeling, cost-benefit analysis and multi-criteria decision analysis were applied in order to find the most suitable spelt processing solution for the analyzed farm. The presented methodological framework upgrades the standard financial cost-benefit analysis with a quantitative utility function and a qualitative DEX-i modeling approach. The calculation of utility function (u) and DEX-i evaluation produced the following spelt processing project rankings: spelt husking (u = 2,67) spelt cookies (u = 2,18), spelt flour (u = 1,65) and spelt bread (u = 1,63). The proposed methodology enables multi-criteria spelt processing project ranking; however, further studies are suggested for the development of multi-criteria decision analysis-based methods for this topic.
Biological Agriculture & Horticulture | 2006
Karmen Pažek; Črtomir Rozman; Andreja Borec; Jernej Turk; Darja Majkovič; Martina Bavec; Franc Bavec
ABSTRACT The need for reliable information in the organic farm planning process dictates the use of modern decision support methods. The methodology of an integrated deterministic simulation system application for decision-making support on organic farms is described in this article. The deterministic simulation system KARSIM 1.0 consists of 74 deterministic production simulation models that enable different types of costs and financial feasibility calculations for organic production and food processing. The KARSIM 1.0 was applied on a sample organic farm for the simulation of five different business alternatives. The simulation model results are further evaluated with two multi-objective analysis methods: analytical hierarchical process (Expert Choice Decision Support System software) and DEX-i expert system (computer software for multi attribute decision making). Alternative 3 (spelt grain processing) results with the highest multi-objective decision evaluation (Expert Choice = 0.275 and DEX-i evaluation = very good). The combination of deterministic cost simulation model and multi criteria decision analysis with the emphasis on financial, technological, market and risk objective presents a powerful decision support tool for organic farms, however, further improvement and development of proposed methodology would be suggested.
Post-communist Economies | 2007
Darja Majkovič; Štefan Bojnec; Jernej Turk
With the recent enlargement of the European Union (EU), ten new member states (NMS) have entered the borderless Single European Market (SEM) and adopted common EU policies in trade with third countries. This policy change causes trade creation effects within the borderless SEM and trade diversion effects in trade with third countries. Slovenia is a typical example of trade creation effects within the enlarged EU-25 and trade diversion effects particularly with traditional former Yugoslav markets. We investigate Slovenian agri-food trade structures and trade types prior to and after EU accession in 2004 to evaluate a turning point for development of Slovenian agri-food trade. Trade creation effects are found to be much more significant in Slovenian imports than exports, indicating lack of Slovenian export competitiveness.
Journal of Agricultural & Environmental Ethics | 2003
A. Ivancic; Jernej Turk; C. Rozman; M. Sisko
Slovene agriculture is going throughdrastic changes. Most of the land is stillowned by small farmers. The production isoriented to the market and is based on modernWestern technology. It is associated withincreasing pollution and is becoming a seriousthreat to biodiversity. Many of the wild plantsare endangered due to genetic erosion withinspecies. The traditional crops and varietiesare being replaced by imported materials andthe use of chemicals has been increasing. Manyof the traditional varieties have beenneglected and/or lost. The existing germplasmcollections are incomplete and frequently donot include traditional varieties. There areonly a few breeding organizations with limitedcapacities and collections. The legislation isnot efficient enough to protect the environmentand biotic diversity. Schools, media,religious, sport, tourist, and otherorganizations should be more active inpromoting the respect for biodiversity.
Journal of Chemometrics | 2016
Darja Majkovič; P. O'Kiely; Branko Kramberger; Marjan Vračko; Jernej Turk; Karmen Pažek; Črtomir Rozman
This study presents an application of artificial neural network and regression modeling techniques for forecasting grassland dry matter yield. Using data from a field plot experiment on semi‐natural grassland in Maribor (Slovenia), the multiple regression and artificial neural network methodologies were employed to explain the patterns of dry matter yield during a 6‐year period. On the basis of the two proposed approaches forecasts were conducted for the independent, validation year (6). The results in terms of Theil inequality coefficient, mean absolute error, and correlation coefficient show a better forecasting performance for the artificial neural network (likely due to the non‐linear relationships prevailing among regressors and regressand) while relationships between observables can be better explained by regression modeling results. Copyright
Acta geographica Slovenica | 2018
Karmen Pažek; Aleš Irgolič; Jernej Turk; Andreja Borec; Jernej Prišenk; Matej Kolenko; Črtomir Rozman
The paper present a multi-criteria decision DEXi model for assessment of less favoured areas (LFAs). The tool enables easier assessment of farming in different areas of Slovene LFAs with respect to criteria of sustainability. Analysis of LFAs and final integration of the assessment of LFAs depend upon various criteria. In this paper we analyze individual LFAs and farming systems in these areas at the state level with respect to criteria of sustainability and farming potential.
Journal of Applied Animal Research | 2018
Jernej Prišenk; Jernej Turk; Črtomir Rozman; Karmen Pažek; Marjan Janžekovič
ABSTRACT The aim of this paper is to assess the economic aspects of bedding materials for sport/recreational horses. Four materials are tested: sawdust in bulk, wood shavings, squared harvest straw, and slice-dusted straw. The process of collecting data for feasibility analysis is structured into two different trials. In Trial 1, daily observations are collected and measured to obtain data about the technical and cleaning characteristics of the four different bedding materials, and in Trial 2, the durability of the bedding materials is tested. From an economic (cost) standpoint, the most suitable bedding materials are squared harvest straw and slice-dusted straw. Unfavourable economic results are found for wood shavings and sawdust in bulk. However, the durability analysis shows wood shavings and slice-dusted straw to be the better options. Thus, the results indicate that some bedding types are better for durability reasons and others are better for economic reasons.
Food Economics - Acta Agriculturae Scandinavica, Section C | 2007
Štefan Bojnec; Darja Majkovič; Jernej Turk
Abstract The ten new member states (NMS-10) of the European Union (EU) have contributed to an enhancement in the agro-food trade among the EU-25 members. Intra-industry trade (IIT) represents only a minor part of NMS-10 trade in agro-food products. Their trade in agro-food products is specialized to different countries in terms of economic distance, factor endowments and/or degree of competitiveness of their agro-food sectors. The borderless EU markets are likely to influence the increase of IIT with implications for the EU trade policy, since more than one-third of agro-food trade in the EU-25 members is represented by NMS-10.
Computers and Electronics in Agriculture | 2013
Rtomir Rozman; Karmen Paek; Miroljub Kljajić; Martina Bavec; Jernej Turk; Franc Bavec; Davorin Kofjač; Andrej Škraba
Društvena istraživanja : journal for general social issues | 2005
Darja Majkovič; Andreja Borec; Črtomir Rozman; Jernej Turk; Karmen Pažek