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Marmara İkliminde Yetiştirilen Kavunda Farklı Sulama Stratejilerinin Su Kullanım Etkinliği ve Net Gelire Etkisi
(Influence of Different Irrigation Strategies on Water Use Efficiency and Net Return of Melon Grown in the Marmara Climate )

Author : Hayrettin KUŞÇU    
Type :
Printing Year : 2017
Number : 2017-Ek Sayı
Page : 16-23


Summary
Bu çalışmada, Marmara ikliminde killi-tın toprak bünyesinde yetiştirilen kavunda, farklı sulama uygulamalarının fiziksel ve ekonomik su kullanım etkinliği ile birim alanda ve birim sulama suyundaki net gelire etkisini araştırmak amaçlanmıştır. Tarla denemesi, 2012 yılında Bursa ilinde yürütülmüştür. Araştırma, tesadüf blokları deneme deseninde üç tekrarlamalı olarak gerçekleştirilmiştir. Deneme konularını, fide döneminden hasada kadar olan dönemde hesaplanan bitki su tüketimi (ETc) miktarına göre farklı sulama suyu düzeyleri (S1: %125 ETc, S2: %100 ETc, S3: %75 ETc, S4:%50 ETc ve S5: %25 ETc) ile çiçeklenme, verim oluşumu ve olgunlaşma dönemlerinin başlangıcına kadar %100 ETc bu dönemlerden sonra %50 ETc (sırasıyla S6, S7 ve S8) düzeyinde sulama suyu uygulanması oluşturmuştur. Optimum koşullara göre, meyve olgunlaşma döneminin başlangıcına kadar %100 ETc, sonraki dönemde %50 ETc düzeyinde sulama suyu (399 mm) uygulanması önerilmiş ve bu uygulamada kavun verimi 65.44 t ha-1 olmuştur. Bu koşulda, en uygun veya maksimum fiziksel su kullanım etkinliği (FSKE) 13.79 kg m-3, ekonomik su kullanım etkinliği (ESKE) ?3.45 m-3, birim hacim sulama suyuna karşılık elde edilen net gelir ?1.74 m-3 ve birim alandan elde edilen net gelir ise ?6958 ha-1 olarak elde edilmiştir.

Turkish Keywords
Cucumis melo, damla sulama, net gelir, su üretkenliği, verim

Abstract
: The objective of this study was to evaluate the effects of different irrigation strategies on both physical and economic water productivity, net return per unit area and net return per volumetric water of melon grown on clay-loamy soils in the Marmara climate of Turkey. The experiment was carried out in Bursa in 2012. The experimental design was a randomized complete block with three replications. Eight irrigation treatments (S1: 125% of calculated evapotranspiration-ETc; S2: 100% ETc; S3: 75% ETc; S4: 50% ETc and S5: 25% ETc restoration during whole growing season; S6: 100% ETc up to beginning of flowering, then 50% ETc restoration; S7: 100% ETc up to beginning of yield formation, then 50% ETc restoration and S8: 100% ETc up to beginning of ripening stage, then 50% ETc restoration) were studied. According to the optimum conditions, the most appropriate irrigation scheduling was application of irrigation water (399 mm) consisting of 100% ETc up to beginning of ripening stage, then 50% ETc restoration. For this treatment, the melon fruit yield was 65.44 t ha-1. In this condition, optimum or the maximum physical water productivity, economic water productivity, net return per volumetric water and net return per unit area were 13.79 kg m-3, ?3.45 m-3, ?1.74 m-3 and ?6958 ha-1, respectively.

Keywords
Cucumis melo, drip irrigation, net return, water productivity, yield

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