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Karkheh River Basin (KRB) is the third largest and most productive river basin of Iran. The major agricultural issue of KRB is low water use efficiencies. Farmers' irrigation practices are aimed at maximizing crop production through excessive use of irrigation water resulting in huge water losses...


Qureshi, Asad SarwarOweis, Theib Y.Karimi, PooladPorehemmat, J.[Water productivity of irrigated wheat and maize in the Karkheh River Basin of Iran]Water productivity of irrigated wheat and maize in the Karkheh River Basin of Iran

Water is rapidly becoming scarcer especially in arid and semiarid areas such as Central West Asia and North Africa Region (CWANA), while irrigated agriculture is critical for national and world food security in these regions. Due to huge gaps between crop demands and rainfall, most countries of t...


Dehghanisanij, H.Oweis, Theib Y.Qureshi, Asad Sarwar[Agricultural water use and management in arid and semiarid areas: Current situation and measures for improvement]Agricultural water use and management in arid and semiarid areas: Current situation and measures for improvement

In its broadest sense, water productivity (WP) is the net return for a unit of water used. Improvement of water productivity aims at producing more food, income, better livelihoods and ecosystem services with less water. There is considerable scope for improving water productivity of crop, livest...


David, S.Oweis, Theib Y.Steduto, P.Bindraban, Prem S.Hanjra, Munir A.Kijne, J.[Improving agricultural water productivity: between optimism and caution]Improving agricultural water productivity: between optimism and caution

Drought is a major factor affecting cereal production in most the rainfed areas of West Asia and North Africa. Recen increases in drought frequency in Morocco have resulted in the yields of field crops being extremely variable and generally low. The objective of this study is to assess drought se...


Karrou MOweis, Theib Y.[Assessment of the severity and impact of drought spells on rainfed cereals in Morocco]Assessment of the severity and impact of drought spells on rainfed cereals in Morocco

Selecting appropriate crops and applying deficit irrigation can help increase water productivity in water-limited regions such as the Mediterranean. The objective of this study was to develop water production functions of major cereal and legume crops under the same environmental and management c...


Karrou MOweis, Theib Y.[Water and land productivities of wheat and food legumes with deficit supplemental irrigation in a Mediterranean environment]Water and land productivities of wheat and food legumes with deficit supplemental irrigation in a Mediterranean environment

Yaghi TAldarir ANNangia, VinayOweis, Theib Y.Arslan, A.[Impact of climate changes on water resources availability in the Orontes River Watershed: case of Homs Governorate in Syria]Impact of climate changes on water resources availability in the Orontes River Watershed: case of Homs Governorate in Syria

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