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    Öğe
    A Design Software for Plastic-Covered, Pipe-Framed Greenhouses
    (Univ Namik Kemal, 2010) Kizil, U.; Genc, L.; Sacan, M.
    Greenhouses in Turkey are generally light frame structures that are mainly subject to wind and snow loads. Currently, there is no standard design procedure for pipe-framed greenhouse structures. The greenhouse contractors are usually pipe producers or plumbers who don't apply engineering calculations. They basically build the greenhouses based on their experiences. However, pipe-framed greenhouse building design procedures do include the calculation of forces such as dead, wind, and snow, moments, reaction forces, etc. There has been a need for a user-friendly design tool that can minimize the failure of pipe-framed greenhouse structures. A software program is developed using MS Visual Basic programming language. The program employs Kleinlogel equations in the calculations of moments and reaction forces. The simplicity of building pipe-framed system and Kleinlogel equations provide a unique opportunity to develop a simple program. This study gives a detailed explanation of the methods and the software.
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    Öğe
    Effects of Different Irrigation Levels On Pepper (Capsicum Annum Cv. Kapija) Yield And Quality Parameters in Semi-Arid Conditions
    (Univ Namik Kemal, 2012) Demirel, K.; Genc, L.; Sacan, M.
    The effects of different irrigation levels on yield, quality parameters, evapotranspiration, water use efficiency, and irrigation water use efficiency were investigated for pepper (Capsicum Annum Cv. Kapija) plant grown in semi-arid region. The Research was carried out in 2009-2010 years in Canakkale province. Drip irrigation method was applied to irrigate the experimental plots with 4 different irrigation levels (10, 166, 133 and 1100). Total irrigation water amounts ranged from 30 to 567 mm in 2009 and from 62 to 489 mm in 2010 were applied according the treatments. Average seasonal evapotranspiration (ETa) were calculated between 322-796 mm with respect to treatments. Pepper yield were obtained 10.89-44.92 and 4.47-63.64 t ha(-1) in 2009 and 2010, respectively. With respect to irrigation levels, average water use efficiency (WUE), irrigation water use efficiency (IWUE) were changed between 2.36-6.95 kg m(-3) and 0-9.05 kg m(-3), respectively. Average yield response factor (ky) was found 1.468. While considering the both 2009 and 2010 years, differences between quality parameters of irrigation treatments (mean fruit weight, fruit width, fruit lenght, fruit thickness and water soluable dry matter) except pH, were statistically significant (p<0.05).