Yazar "Gundogmus, Erdemir" seçeneğine göre listele

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    The effect of EurepGAP standards on energy input use: A comparative analysis between certified and uncertified greenhouse tomato producers in Turkey
    (PERGAMON-ELSEVIER SCIENCE LTD, 2009) Bayramoglu, Zeki; Gundogmus, Erdemir
    The aim of this study was to compare the energy use on greenhouse tomato production between EurepGAP certified and uncertified producer groups in Turkey in terms of energy ratio, benefit/cost ratio and amount of renewable energy use. Total energy requirement on EurepGAP certified producers group was 90,288.5 MJ/ha whereas 126,311.5 MJ/ha was consumed on uncertified producers group i.e. 29% higher energy input was used on uncertified producers than that of certified ones. The energy ratio of 0.79 and 0.72 were achieved on EurepGAP certified and uncertified tomato producer groups, respectively. (C) 2008 Elsevier Ltd. All rights reserved.
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    The impact of changes in Turkey's hazelnut policy on world markets
    (ACADEMIC JOURNALS, 2010) Bayramoglu, Zeki; Ozer, O. Orkan; Gundogmus, Erdemir; Tatlidil, F. Fusun
    The present study analyzes the manner in which changes in Turkey's hazelnut policies shall affect the world hazelnut markets via price impacts of these policy changes. For this aim, a multi-region partial equilibrium model for Turkey, Italy, Spain, USA and Germany, the main participants in the world hazelnut market, was developed. Since most of the world hazelnut production and export belongs to Turkey, export prices of Turkey were accepted as data for the world markets. In the model, the manner in which changes in Turkey's hazelnut policies reflects upon the international markets via prices was explained. Besides, scenarios with regard to Turkey's possible policy changes were given and with the help of the estimated model, future conditions of exports and imports of the countries participating in the international hazelnut market were estimated. According to the model results, it is expected that a decrease in Turkey's hazelnut production areas would lead to an increase of its effectiveness in international markets. The decrease in production areas shall raise the prices. However, it is expected that prices remaining stable shall increase the amount of hazelnut exports of Turkey. Therefore, this situation shall increase Turkey's hazelnut export income and decrease other exporter countries' exports and their impact on the market. In order to achieve these results, legal arrangements done by Turkey with respect to narrowing the production areas should be successfully implemented.
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    The impact of EurepGAP requirements on farm income from greenhouse tomatoes in Turkey
    (ACADEMIC JOURNALS, 2010) Bayramoglu, Zeki; Gundogmus, Erdemir; Tatlidil, F. Fusun
    The aim of this study was to determine whether a difference existed between the income levels of farmers with EurepGAP certificates and farmers who produce conventionally ( without a certificate). The data were collected from 16 certified households that produce tomatoes in greenhouses in the Antalya Province and 33 uncertified greenhouse farms who were chosen randomly in the same region. All data was analysed using the partial budget method. When comparing the economic performances of certified tomato producers with the economic performances of uncertified tomato producers, the certified group can be summarized as the ones who have lower productivity, spend less and obtain a higher level of net income. EurepGAP certified tomato producers were determined to have a net income that is 2.8 times more per unit area compared to uncertified tomato producers.