现货 Effectiveness of Surge Flow Irrigation in Egypt: Water Use Efficiency in Field Crop Production[9781138474710]

1766 九五品

库存2件

上海宝山

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作者Mahmoud, Ismael

出版社CRC Press

ISBN9781138474710

出版时间2017-10

装帧精装

纸张其他

页数264页

正文语种英语

上书时间2023-04-10

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商品描述: Egypt is a country of tremendous land resources but limited water resources The area of cultivated land is only 3.2 per cent 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 per cent 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.