Published in Irrigation and Drainage Systems
The Middle East and North Africa (MENA) region is the driest region of the world with only 1% of the world’s freshwater resources. The increasing competition for good-quality water has cut into agriculture’s water share but since the use of freshwater for domestic, industrial and municipal activities generates wastewater, the volume of wastewater u...
Published in Irrigation and Drainage Systems
Chemigation is used to apply a wide variety of chemicals to many kinds of crops through different types of irrigation systems. The bypass flow chemical injector using the pipe bend devices is a simple pressure differential method. The hydraulic experiments of pipe bend devices with different shape and size crests were conducted using 30 mm internal...
Published in Irrigation and Drainage Systems
In new agricultural practices, joint application of water and fertilizer has been become common. Uniform distribution of fertilizer in soil and in plant growth duration is possible by this procedure. The main objective of this study was to investigate furrow fertigation management effects on distribution uniformity and runoff losses of nitrate in a...
Published in Irrigation and Drainage Systems
A linear programming model was developed to assess the impact of different water prices on cultivated areas, irrigation water demand, net income and optimal cropping pattern in the Northern Jordan Valley (NJV). The results reveal that the price for irrigation water does not reflect any elasticity in the range of water prices between 0.01 and 0.06 J...
Published in Irrigation and Drainage Systems
Various methods and criteria have been proposed and utilized for the evaluation of irrigation systems performance, which can be used for comparison of design conditions and irrigation systems performance. Surface irrigation systems should be paid more attention among all other irrigation systems due to their operation simplicity and high losses. In...
Published in Irrigation and Drainage Systems
In developing countries, natural river regimes are increasingly undergone human modifications. All these constraints strongly affect the river systems. However, study on minor tributary of modified river is few. Thus the interest of this paper is to explore a tributary due to extensively regulated flow regime of mainstem river constrained by two ba...
Published in Irrigation and Drainage Systems
This paper discusses the evolution of the foggara in time and the methods adopted by farmers to increase the water parts of owners. Field works were conducted in 2007, 2008, 2009 and 2010 in the oases of Timimoun and Adrar. Over 100 foggaras were visited. Surveys and interviews with the populations and the owners were conducted. Two ancestral metho...
Published in Irrigation and Drainage Systems
Water management for irrigation in areas with high water scarcity includes not only domestic wastewater treatment but also practices for the reuse of drainage water during the irrigation period. The main problem that concerns the reuse of drainage water for irrigation is the accumulation of salts due to the effluents existing in the soil. In this p...
Published in Irrigation and Drainage Systems
In 2004, the Jordan National Water Master Plan (NWMP) was developed, which includes a number of water demand projection modules for assessing the existing water resources, and predicting demands on water for all uses; municipal, industrial, tourist and irrigation. The Irrigation Demand Module was tested with historical data and comparisons were mad...
Published in Irrigation and Drainage Systems
As sources of irrigation water are decreasing, efficient use of surface irrigation is essential. The purpose of this study is to determine if partially-wetted furrow irrigation has more efficient water storage and infiltration than traditional border irrigation in an alluvial clay soil under cultivated grape production. The two irrigation component...
