ISSN 2284-7995, ISSN Online 2285-3952
 

Published in Scientific Papers. Series "Management, Economic Engineering in Agriculture and rural development", Vol. 23 ISSUE 4
Written by Bektaş KADAKOĞLU, Bahri KARLI

This study aims to examine the development of olive oil production and trade, analyze the competitiveness, and develop recommendations to increase competition. Although world olive oil production has followed a fluctuating course in the last two decades, it has been determined to be in an increasing trend. Approximately 3.3 million tons of olive oil are produced in the world every year. Türkiye ranks fifth in world olive oil production with a share of 7.12%. Although Türkiye's olive oil production has been increasing over the years, there are approximately 200-250 thousand tons of products every year. In 2021, world olive oil exports amounted to 8.58 billion dollars and imports to 8.75 billion dollars. Türkiye ranks sixth in the world regarding the amount and value of olive oil exports. Türkiye's olive oil export market is concentrated in the United States of America (USA) and European Union (EU) countries. In 2021, Türkiye's olive oil exports were 27.98% to the USA and 20.63% to EU countries. In the study, the competitiveness analysis of olive oil was calculated for the years 2010-2021, and Balassa's Revealed Comparative Advantage Index (RCA), Vollrath's Relative Export Advantage Index (RXA), and Laursen's Revealed Symmetric Comparative Advantage Index (RSCA) were used in the analysis. The average index values obtained for Türkiye are calculated as 2.06 for RCA, 2.09 for RXA, and 0.278 for RSCA. It was determined that although Türkiye's competitiveness in olive oil exports is at a low level, it has the potential to compete with rival countries. In the study, some suggestions were developed for Türkiye to increase its competitiveness. The main recommendations are to improve the quality of olive oil production by differentiating it through tools such as geographical indication registration and to liberalize trade by removing practices that restrict foreign trade (such as quotas and taxes) through agreements between countries.

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KADAKOGLU B., KARLI B. 2023, TURKISH OLIVE OIL: HOW CAN ITS GLOBAL COMPETITIVENESS BE INCREASED? . Scientific Papers. Series "Management, Economic Engineering in Agriculture and rural development", Vol. 23 ISSUE 4, PRINT ISSN 2284-7995, 447-454.

Published in Scientific Papers. Series "Management, Economic Engineering in Agriculture and rural development", Vol. 23 ISSUE 4
Written by Tarek FOUDA, Eltaher MADY, Nouri AL BAY, Ashraf SWIDAN, Shaimaa SALAH

The research was conducted on the farm of the agricultural research station, Agricultural Research Center, Tripoli, Libya (latitude of 32° 12' 25'' and longitude of 13° 62' 16'') during the season of 2021-2022. Cabbage and lettuce crops were planted at greenhouse condition in November 2021. The objective of this study was using alternate representations of infrared thermography IR to detect the vegetative indicators addition to continuously monitor cabbage and lettuce plants growing conditions for discrimination plants stresses under the shortage of nitrogen and irrigation water, using four levels of nitrogen fertilization (0, 50, 100 and 150% of Nitrogen recommended). Also four levels of water regime (50%, 75%, 100% and 125% of ETc) . The leaf-to-air temperature difference (ΔT), The relationship between the temperature of the canopy (Tc) and temperature of soil (Ts), pair is best suited to find the plant under water stress. Water stress index (CWSI) and stomatal conductance index (Ig) using various reference and non-reference thresholding techniques were tested. In this research a thermal imaging system was used to measure the leaf-temperature changes of several crops according to plant stresses. Results showed by applying 100% fertilization and 100% ETc to cabbage. The heat stress was the highest as MTD, maximum temperature difference, normalized relative canopy temperature were 8 and 0.32 C when the water stress as CWSI, IG index of stomatal conductance were 0.5 and 4.15 for cabbage in100% ETC and 150%F. Finally, possibility of using infrared thermography for detailed and continuous monitoring showed its ability to distinguish and show the thermal and water stress of plants under nitrogen and water deficiency.

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FOUDA T., MADY E., AL BAY N., SWIDAN A., SALAH S. 2023, USING INFRARED THERMOGRAPHY FOR DETAILED MONITORING OF CABBAGE WATER AND HEAT STRESS . Scientific Papers. Series "Management, Economic Engineering in Agriculture and rural development", Vol. 23 ISSUE 4, PRINT ISSN 2284-7995, 319-330.

Published in Scientific Papers. Series "Management, Economic Engineering in Agriculture and rural development", Vol. 23 ISSUE 4
Written by Pavlo LYKHOVYD, Sergiy LAVRENKO, Nataliia LAVRENKO

The purpose of the article was to describe the outcomes of an in-field evaluation of the NDVI Converter application, which was created to assess the normalized difference vegetation index (NDVI) using estimates of the percentage of green canopy cover. The study was carried out in 2023 on fields of winter wheat, winter barley, and winter oilseed rape in the phenological stages BBCH 21–32 and BBCH 18–39, respectively. The fraction of green canopy cover was estimated using the application Canopeo. By comparing the mean absolute percentage error and Pearson's correlation coefficient to the actual values of the spatial vegetation index, as determined by the platform OneSoil, the quality of the vegetation index evaluation was assessed. Thus, it has been established that NDVI Converter offers accurate vegetation index assessment for cereal crops, with mean absolute percentage error 16.23% and Pearson’s correlation coefficient within 0.99, and reasonable quality for oilseed rape (statistical indicators of 46.61% and 0.99, respectively). After the adjustment, the accuracy score of the NDVI Converter increased up to 27.62% for oilseed rape, and 8.71% for winter cereals. Therefore, NDVI Converter could be recommended for practical use in case the spatial vegetation index is not provided by satellite imagery services.

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LYKHOVYD P., LAVRENKO S., LAVRENKO N. 2023, USING NDVI CONVERTER APPLICATION FOR ASSESSMENT OF THE VEGETATION INDEX IN WINTER CEREALS AND OILSEED RAPE. Scientific Papers. Series "Management, Economic Engineering in Agriculture and rural development", Vol. 23 ISSUE 4, PRINT ISSN 2284-7995, 481-486.

Published in Scientific Papers. Series "Management, Economic Engineering in Agriculture and rural development", Vol. 23 ISSUE 4
Written by Harby MOSTAFA, Mohamed ALI, Mohamed EL ANSARY

Maximizing water productivity is one of the most important strategies in arid and semi-arid regions. Therefore, the aim of this study was to investigate the using of plastic mulch at field scale for improving the performance of surface irrigation in contrast to conventional practices in irrigated agriculture. The experiment was laid out in furrow and border irrigation system with three main treatments namely non-mulched furrows (NMF) (as control), plastic mulched furrows (FM) and plastic mulched-hole border (MB), and the sub main treatments were three lengths (15, 30 and 40 m). Each of the three main plots consisted of 9 irrigation parts each three of them represent one of the sub main treatments (furrow and border lengths). The spacing was 0.7m between all treatments. Squash crop was planted in April for two successive seasons. The results indicated that applied water was low in case of MB where the mulch effect reduced the number of irrigation times to the half. The maximum total yield was obtained from treatment with 30m length under MB (31.89 t/ha) followed by 15 m under MB (30.46 t/ha). As regard different irrigation practices with plastic mulch, maximum irrigation water productivity (8.33 to 9.15 kg/m3) was measured in MB for all lengths, followed by MF (5.11 to 5.41 kg/m2). The water saving was thus 10.44% and 46.3% under treatments MF and MB, respectively, when compared to NMF. The result of this study indicates that, using hole-mulching resulted a corresponding increasing of water productivity and water saving.

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MOSTAFA H., ALI M., EL ANSARY M. 2023, UTILIZATION OF SOIL MULCH FOR INCREASING SURFACE IRRIGATION PERFORMANCE AND WATER PRODUCTIVITY. Scientific Papers. Series "Management, Economic Engineering in Agriculture and rural development", Vol. 23 ISSUE 4, PRINT ISSN 2284-7995, 539-548.

Published in Scientific Papers. Series "Management, Economic Engineering in Agriculture and rural development", Vol. 23 ISSUE 4
Written by Mary Cris F. PLEÑOS

Household spending is essential in determining the productive success of an economy since changes in household consumption at the micro level will affect the economy as a whole. This study aims to evaluate the consumption expenditure of households in the province of Leyte and identify demographic characteristics that may affect it. Both descriptive statistics and multiple regression analysis were used to answer the objectives of this study. Based on the findings, the minimum monthly household consumption expenditure is PHP 2,222 (40.29 USD) and the maximum is PHP 71,792.10 (1,294.72 USD). A bigger portion of the overall spending is spent on food while the least is spent on healthcare. By econometric analysis, marital status, sex of the household head, education and income were positively related to the households’ overall household spending. This study suggests that a family must increase their spending on healthcare, family planning must be considered to minimize household expenditures, and proper education must be promoted to ensure financial stability among households.

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PLENOS M.C.F. 2023, WHAT DETERMINES CONSUMPTION EXPENDITURE? ECONOMETRIC EVIDENCE AMONG HOUSEHOLDS IN LEYTE, PHILIPPINES . Scientific Papers. Series "Management, Economic Engineering in Agriculture and rural development", Vol. 23 ISSUE 4, PRINT ISSN 2284-7995, 667-676.

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© 2019 To be cited: Scientific Papers. Series “Management, Economic Engineering in Agriculture and Rural Development“.

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