Effectiveness of Surge Flow Irrigation in Egypt : Water Use Efficiency in Field Crop Production

ISBN-13: 9789058096555 / Angielski / Miękka / 2003 / 264 str.

Opis

Egypt is a country of tremendous land resources but limited water resources The area of cultivated land is only 3.2% of the gross area. The river Nile is the main sources of water. In the recent years the Governement established large-scale agricultural projects in light of food security related to the population growth. Expansion of irrigated agriculture has to be predomantly relalized bt increasing the water use efficiency. In Egypt, the dominant irrigation method is surface irrigation, which covers approximately 83% of the irrigated areas. Surface irrigation or gravity methods are generally characterized by a low efficiency. One opportunity to increase the efficiency is to convert surface irrigation to modern irrigation systems, which are generaly highly expensive for a country like Egypt. Another option to increase the efficiency of surface irrigation systems is to convert the traditional irrigation method based on continuous flow to surge flow irrigation. Surge flow irrigation is the intermittent application of water to furrows in a series of relatively short on and off time periods. This study has been carried out to demonstrate the applicability of surge flow irrigation for water saving under the short field conditions that prevail in Egypt. The results indicate that surge flow irrigation is an effective irrigation method to save water and to increase crop production.

Spis treści

1. Introduction 2. Field Irrigation Methods 3. Surge Flow Irrigation 4. Physical Aspects of Surge Flow Irrigation 5. Models 6. Applying Surge Flow Irrigation Under Short Field Conditions 7. Evaluation of Field Experiments and Model Simulations 8. Crop Production Under Surge Flow Irrigation 9. Evaluation

O autorze

Ismael Mahmoud