Optimum Time Ratio for Maximum Application Efficiency in Furrow Irrigation

Abstract

Keywords

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Optimum Time Ratio for Maximum Application Efficiency in Furrow Irrigation

Abstract

Kök bölgesinde ihtiyaç duyulan net su miktarının infiltrasyonu için gerekli zamanın, suyun karığın aşağı ucuna ulaşması için geçen zamana oranı olarak tanımlanan zaman oranı maksimum sulama randımanını sağlayacak karık uzunluğunun belirlenmesinde en önemli parametredir. Bu çalışmada, karık sulamada maksimum sulama randımanını sağlamak için gerekli optimum zaman oranını belirleyecek bir model geliştirilmiştir. Model, patates yetiştirilen 0.75 m genişliğindeki, 120 m uzunluğundaki, üç farklı eğimdeki (% 0.5, 1.0 ve 1.5) karıklarda ve her bir eğim için üç farklı debide (sırasıyla 0.75, 1.0 ve 1.25 l/s; 0.4, 0.5 ve 0.6 l/s; 0.3, 0.4 ve 0.5 l/s) test edilmiştir. Her bir debi için karıktaki suyun ilerleme ve çekilme hızlarını belirlemek amacıyla karıklar boyunca 10 m aralıklarla istasyonlar çakılmıştır. Ortalama bir tarım toprağı için % 64 uygulama randımanı elde edilmiştir. Düşük infiltrasyon oranında maksimum uygulama randımanı elde etmek için daha kısa; yüksek infiltrasyon oranlarında ise daha küçük karık boyu seçilmesi gerektiği sonucuna varılmıştır

Keywords

• Karık ilerlemem hızı, optimum zaman oranı, sulama randımanı, patates

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