الباحثون

Hayder A. Abdel-Rahman

المنشورات 5

مقال بحثي وصول مفتوح

Evaluation of some water saving devices in urban areas: A case study from the Sultanate of Oman

Hayder A. Abdel-Rahman, Halima A Al-Farsi, Mushtaque Ahmed وآخرون · مجلة العلوم الزراعية والبحرية · 2018 · 10.24200/jams.vol22iss1pp18-26

Water Saving Devices (WSDs) sustain demands for potable water, soften impacts on supply systems and inflict a positive effect on wastewater treatment systems. This study evaluated the effect of some WSDs in Oman. A questionnaire survey and some case studies were used. The survey results revealed that the pipe line syst …

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Water Use Efficiency and Yield of Cucumber (Cucumis sativus L.) Under Greenhouse and Field Conditions

Hayder A. Abdel-Rahman, Hamdan S AlWahaibi · مجلة العلوم الزراعية والبحرية · 2004 · 10.24200/jams.vol9iss2pp31-41

The combination of aridity, extensive urbanization and expansion of irrigated fanning have brought about substantial wale demand increase and intensified the gap between rising water demands and limited existing water supply in the Sultanate of Oman. Creenhouse farming has hem adopted as pan of the government effects t …

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Modeling Residual NAPL in Water-Wet Porous Media

Robert James Lenhard, Anvar R. Kacimov, Alexandre M. Tartakovsky وآخرون · مجلة العلوم الزراعية والبحرية · 2002 · 10.24200/jams.vol7iss2pp1-7

A model is outlined that predicts NAPL which is held in pore wedges and as films or lenses on solid and water surfaces and contributes negligibly to NAPL advection. This is conceptually referred to as residual NAPL. Since residual NAPL is immobile, it remains in the vadose zone after all free NAPL has drained. Residual …

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Effect of Hydrophobic Polymer Application and Irrigation Rates on Yield of Field Grown Okra

P. Cookson, Hayder A. Abdel-Rahman, P. Hirsbrunner · مجلة العلوم الزراعية والبحرية · 2001 · 10.24200/jams.vol6iss0pp67-75

Improving irrigation efficiency is of great importance in conserving water resources of arid countries. The effect of a hydrophobic polymer (called Guilspare) to improve yields and water use efficiencies of okra (Adelmoschus esculentus) plants was investigated using a 3x3 Latin Square field experiment. Soils were treat …

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Water and Salt Distribution in Saline-Sodic Soil as Affected by Peatmoss and Gel-Forming Conditioner

Hayder A. Abdel-Rahman, Alaa Ibrahim · مجلة العلوم الزراعية والبحرية · 2000 · 10.24200/jams.vol5iss1pp35-41

Soil amendments are used to improve the water and nutrient holding capacity of coarse textured soils, and alleviate problems of infiltration and percolation in fine textured soils. The effects of a gel-forming absorbent copolymer and peatmoss as soil amendments, on intermittent evaporation, moisture distribution, and s …

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