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Mathematical Modelling of Thin Layer Drying of Alfalfa (Medicago sativa L.) Varieties at Different Temperatures 全文
2020
Muhammed Taşova | Hakan Polatcı | Mahir Özkurt
In this study, the average drying times of the Frigos, Bilensoy, Nimet and Prosementi alfalfa varieties were determined by drying in a convective dryer (50, 60 and 70°C) and in the open (sun). In addition, the most suitable thin layer drying models were determined, which are important in controlling the drying processes and developing new product-specific dryers. In drying processes, the moisture content of the product was dried up to 10% compared to the wet base. The first moisture contents of the specified varieties according to the wet base are respectively; 76.20, 75.88, 76.13 and 75.07%. In drying processes, it was determined that drying method and temperatures changed average drying times. The longest drying times were determined in the Frigos variety, which was laid in the sun and dried. When the Frigos variety was dried in the oven at 50, 60 and 70°C, the average drying times were determined as 11, 10 and 6 hours. Time-dependent moisture ratios were determined, processed in thin layer drying models and the mathematical model that best predicts drying curves was determined. While creating curves, Page, Midilli, Yağcıoğlu models were used. While acceptable reliability values were found as in all models, among the models, the highest stability value (R2) was found by Midilli was found in equality.
显示更多 [+] 显示较少 [-]Development of a Low-Cost pH Meter for Liquid Chemical Fertilizers 全文
2020
Muhittin Yağmur Polat | Abdullah Beyaz | İbrahim Çilingir
Liquid chemical fertilizers are widely used in modern agriculture. The pH values of these fertilizers are important in terms of their effectiveness in the field application and their effect on the soil-water pH balance. Therefore, it is necessary to measure the pH and other properties of liquid fertilizers with fast, practical and inexpensive methods. With the advancing technology, pH value has been started to measure more accurately and efficiently with the help of low-cost devices. In this study, a low-cost pH meter was developed using a low-cost pH sensor, an Arduino UNO R3 microcontroller board, and a software written in the C/C++ programming language. The developed pH meter was used to measure the pH values of liquid chemical fertilizers. Close variations were observed between the values obtained from it and the values measured by an accredited, laboratory-type pH meter. According to the pH measurements of the two pH meters, R2 ranged 88.1% to 99.3%, average error range 0.14 to 0.28, and average error percentage ranged 1.56% to 6.81% for three different types of liquid fertilizers. In light of these results, it was shown that the developed low-cost pH meter can be useful for practical pH measurement applications.
显示更多 [+] 显示较少 [-]Dairy Products Made from Yogurt in Hatay Region 全文
2020
Dilek Say | Mehmet Salih Çayır | Nuray Güzeler
In Hatay region, production of dairy products whose raw material is known as yogurt is important to increase the durability of yogurt. These products are produced in small-scale enterprises and offered for sale in local markets, and in some enterprises are produced industrially. It is also made by the local people for their own consumption. Dairy products made from yogurt in and around Hatay; Concentrated (torba) Yogurt, Salted Yogurt, Duberke, Labne (labna modavara, junkie, labna mıdabale), Çökelek, Antakya Sürk (Antakya Çökelek) which have geographically indicated, Yogurt Cheese and Butter made from yogurt (yayık butter). In this study, production technology, general characteristics and studies related to the subject of dairy products made from yoghurt were given.
显示更多 [+] 显示较少 [-]Tillage, Crop Residue and Nitrogen Management Effects on Nitrogen Uptake, Nitrogen Use Efficiency and Yield of Rice 全文
2020
Arjun Bastola | Tika Karki | Santosh Marahatta | Lal Prasad Amgai
Field experiment was conducted in three factorial strip split plot design to evaluate the effect of two establishment methods (EM) i.e. transplanted in puddled soil (Pu-TPR) and direct seeded in zero tillage (ZT-DSR), two residue levels i.e. residue kept at 3 t ha -1 (RK) and no residue (RR) with two nitrogen doses i.e. recommended dose (100 kg N ha -1) (RD) and farmers' dose (50 kg N ha-1) (FD) with six replications with individual plot size of 5.4 m × 6.3 m on rice variety Ram-Dhan during the year 2016. Nitrogen uptake, nitrogen use efficiencies and yield of rice were recorded. Straw nitrogen uptake was significantly higher in ZT-DSR than Pu-TPR. Similarly, grain straw and total nitrogen uptake were significantly higher in residue applied and recommended dose of nitrogen than no-residue applied and farmers-nitrogen dose treatments respectively. Nitrogen efficiency ratio and physiological efficiency index were significantly higher in Pu-TPR and no-residue applied treatments while partial factor productivity was higher in residue applied treatment. All nitrogen use efficiencies like partial factor productivity, nitrogen efficiency ratio and physiological efficiency index were significantly influenced by nitrogen dose and seen higher in recommended dose of nitrogen. Establishment methods had no significant effect on grain yield but straw yield was significantly higher in ZT-DSR but harvest index was seen higher in Pu-TPR. Grain yield and straw yield were significantly higher in residue applied treatment and recommended nitrogen but harvest index was higher in farmers-nitrogen dose.
显示更多 [+] 显示较少 [-]Competitive Analysis of Isparta Fruit Sector through Diamond Model 全文
2020
Derya Balcı | Fatma Handan Giray
In order to gain competitive advantage in national and international markets through globalization, make the competition sustainable, produce products with advanced technologies and innovative activities and make a flexible production in line with changing demand make firms and / or sectors advantageous in global competition. This study aimed at analyzing a competitive analysis of fruit sector through the Diamond Model developed by Michael Eugene Porter in order to demonstrate national and sectoral competitiveness. For this purpose, the current situation of fruit sector, which is an important economic activity in Isparta, was put forward and analyzed its competition level was discussed. The necessary data for the Diamond Model were gathered through face-to-face surveys with 47 large fruit producers and in-depth interviews with the representatives of other related sectors. Although the fruit sector and related sectors have been located close to natural resources and inputs in the neighbourhood in Isparta, an ordinary agglomeration has emerged but it could not be clustered because collaboration culture has not been developed in the sector and intersectoral. This fact decreases the regional competition chance of the sector. However, existence of an easy and continuously communication among all actors in the sector, state supports to sectoral cooperation / organizations, and actors who are compulsory for benefiting these supports in the region should be considered important advantages for a clustering and increasing regional competitiveness power of fruit sector.
显示更多 [+] 显示较少 [-]In vitro Screening for Salt Tolerance of Some Citrus Rootstocks 全文
2020
Mehmet Yaman | Hasan Pınar | Ubeyit Seday | Duygu Altınöz | Aydın Uzun | Nur Selin Çabuk
Just because of geographical spread, citrus species generally grow in places sensitive to salinity. Testing methods have a significant role in breeding and cultivar development programs. This study was conducted to investigate in vitro salt response of Cleopatra mandarin (Citrus reshni Tan.), sour orange (Citrus aurantium L.), rough lemon (Citrus jambhiri Lush.), Volkamer lemon (Citrus volkameriana Tan & Pasq.), Carrizo citrange (Poncirus trifoliata L. Raf. X Citrus sinensis L. Osbeck) and trifoliate orange (Poncirus trifoliata Raf.) rootstocks at different NaCl concentrations. Seeds were germinated in MS medium with 0, 45, 90 and 135 mM NaCl concentrations. In general, the greatest germination rates in all salt concentrations in Volkamer lemon and sour orange rootstocks and the lowest values were observed in rough lemon and trifoliate orange rootstocks. Present findings revealed that in vitro conditions could reliably be used in salt tolerance tests of citrus rootstocks.
显示更多 [+] 显示较少 [-]Present Status and Development Possibilities of Forage Production in Adana Province 全文
2020
Rüştü Hatipoğlu | Uğur Serbester | Mustafa Avcı | Beytullah Dönmez
Roughages, a group of animal feeds, are most important input for an ecomical animal production. Without a systematic plan of roughage assurance is not possible profitable animal production. Sources of the roughages are native meadows and pastures, forage plants grown in the crop production and harvest residues of the plant production. In this review, present status of roughage production and its development possibilities in Adana province were discussed.
显示更多 [+] 显示较少 [-]Impact of 2008 Global Economic Crisis on Youth Unemployment: An Application to Turkey 全文
2020
Mehmet Arif Şahinli | Ahmet Özçelik | Hüseyin Tayyar Güldal
In recent years, youth unemployment in Turkey is the effect of economic growth on employment and unemployment. When we search studies for employment and unemployment in the literature, we can’t find many empirical studies for the Turkish economy. In order to contribute about this subject, we try to search the effect of economic growth on youth unemployment for the Turkish economy for the period of 1998-2016 employing Dummy variables. Especially, we found that, increasing effect of economic growth on youth unemployment.
显示更多 [+] 显示较少 [-]Investigation of Equipment Elements of the Niğde Ömer Halisdemir University Campus in Terms of Aesthetics and Functional Properties 全文
2020
Orhun Soydan
In this study, equipment elements which have been used in Niğde Ömer Halisdemir University campus, were analysed considering various criteria in terms of landscape architecture. In this study, lighting and flooring elements, trash cans, sitting elements etc. were evaluated considering some criteria such as maintenance, design, ergonomics, etc. Within the scope of the study, it has been determined whether the equipment elements in the campus meet the people needs. There are insufficient number of seating elements in the campus, security problems occur due to the lack of lighting elements in certain places. The bus stops in the campus are sufficient numerically, and they are in suitable areas in terms of location. In addition, the number of telephone booths and the number of trash cans in the campus are insufficient. The designs of the equipment elements are similar, and equipment elements have traditional design. As paving elements, key paving stones are used on pedestrian roads, so that in some areas, collapses occur, so fall, snag, etc. on pedestrian roads. Finally, suggestions for using equipment elements in campus areas were developed.
显示更多 [+] 显示较少 [-]Determination of Pesticide Residues in Sour Cherry used in the Sour Fruit Juice Production in Tokat provinces 全文
2020
Tarık Balkan | Kenan Kara
Sour cherry (Prunus cerasus L.) (Rosaceae) is a spring fruits. It is not preferred to be consumed as fresh because it is sour, but it is extremely beneficial for human health. In addition to fresh consumption, it is used in the production of fruit juice, syrup, jam, marmalade, cake and ice cream in the food industry. Sour cherry is grown widely in Tokat and 80-85% of the grown cherries are sold to juice factories. Producers mostly adopt chemical control against pests. In this respect, monitoring pesticide residues on sour cherry is extremely important. This study was carried out to determine the pesticide residue levels in samples taken from sour cherry production areas in Tokat province in 2020. The residue analyses were performed by using QuEChERS method and LC-MS / MS (Liquid Chromatography / Tandem Mass Spectrometer). According to the results, the pesticide residue levels were found below the maximum residue limits (MRL) given in Turkish Food Codex (TFC).
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