تأثير الري بمياه صرف أحواض تربية الأسماك في نمو نبات المنثور، وإزهاره (Matthiola incana) في الزراعة المحمية
Abstract
يهدف هذا البحث إلى ترشيد استهلاك المياه، وذلك من خلال دراسة إمكان استخدام مياه صرف أحواض تربية الأسماك في إنتاج أحد نباتات الزينة المهمة محلياً (المنثور), إضافة إلى إمكان الاعتماد على هذه المياه في توفير المواد الغذائية اللازمة للنبات، وذلك بهدف الحد من التسميد المعدني.
أظهرت النتائج أن استخدام مياه صرف أحواض تربية الأسماك في ري نبات المنثور المزروع في البيوت المحمية أسهم إسهاماً إيجابياً في النمو الخضري (طول النبات، ومتوسط عدد الأوراق على النبات)، إضافةً إلى الأثر الإيجابي في تشكل الشماريخ الزهرية، وتطورها (التبكير في الإزهار, وطول الشماريخ, وعدد الأزهار على الشمراخ)، إضافةً إلى التأثير الإيجابي في نسبة المادة الجافة في المجموع الخضري أو الزهري. هذه التأثيرات انعكست بشكل ملحوظ على الكفاءة الاقتصادية لاستخدام هذه المياه؛ إذ وجد أن الري بمياه صرف أحواض تربية الأسماك في المعاملات كافة حقق ربحاً اقتصادياً أعلى مما هي عليه الحال عند استخدام المياه العذبة في الري.
The aim of this research is to reduce water consumption by studying the possibility of using Fishpond drainage waterin the production of one of the most important local cut-flower (Wallflowers), in addition to reliance of this water to present nutrients for the plant in order to reduce the mineral fertilization.
The results showed that the use of (FDW: Fishpond Drainage Water) in irrigation of the Wallflowers which were grown in greenhouses had a positive impact on vegetative growth (plant height and average number of leaves on the plant). In addition,it showed a positive effect on the formation of Inflorescence flowering (early flowering, length of Inflorescence, number of flowers on Inflorescence)
The positive effects were reflected on the proportion of dry matter both in the vegetative or flowering part. These effects were reflected significantly on the economic efficiency of using this water and it was found that irrigation with (FDW) in all treatments achieved higher economic profit than using fresh water for irrigation.
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