مقارنة بين الاحتياج المائي النظري والفعلي لأشجار الحمضيات
Abstract
غالباً ما تصمم شبكات الري بالتنقيط تصميماً جيداً وبكفاءة نظرية عالية, كما أن التنفيذ الجيد لهذه الشبكات يساهم في الحصول على كفاءة مماثلة إلى حد كبير للكفاءة التصميمية, لكن يلاحظ بعد فترة تشغيل قصيرة للشبكة الانخفاض الكبير في كفاءة الشبكة, ويعود السبب في ذلك إلى عدم التقيد بالمخطط التصميمي من حيث كمية السقاية المعطاة للشبكة ومدة السقاية, وكذلك عدم إجراء عمليات التنظيف الدورية للشبكة.
Often the drip irrigation networks are designed in a very good way and with a high theoretical efficiency and a good implementation of these networks which contribute to obtain the efficiency similar to a large extent of the design efficiency design. But after a short run off the network, there appears a significant decrease in the efficiency of the network. This decrease is caused by non-compliance design of the irrigation amount that is given to the network and the duration of irrigation too, as well as not to doing the periodical cleaning of the network
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