الفهرس 
المقدمةيوجد فقط 14 صفحة متاحة للعرض العام
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المستخلص
A summary of the study is agriculture is the substrate essential to build a component of the economic in all of the world, especially Egypt they source is necessary to provide a raw materials needed food man it is also a major source of income most of the world and will not be achieved this alinma economic optimal water resources and raise its efficiency, so Egypt of the most of the world ’ on irrigated agriculture, especially in light of the scarcity of rain where dependent agriculture on more than 80% of the water Nile River, and therefore went attention to the program the development of irrigation and and work on reducing the loss of water, the objectives of the study the effect of the study economic systems irrigation surface developer on production agricultural areas new and old and measure the estimate of the impact of the efficiency of the use of water, irrigation developed on productivity acre-benefit from the water and inventory of amounts of water available due to the implementation of projects for the development of irrigation ways to exploit the expansion of the board of agricultural, and also measured the development of irrigation level efficiency and productivity in the areas of the provinces developed and studying requirements of water in Egypt provinces development and appreciation losses in the water resources, but is the problems of the study in the limitations of water resources and their impact on the board of agricultural and draw agricultural policy development WA losses water a result of bugs accident in transmission and distribution of water as the efficiency of water 70% in the right now and also efficiency systems irrigation which resulted in cycle to fall efficiency to maximize the return of the water used in the fields, which may reach the proportion of losses in which 50% in addition to the lack of choice for installation crop appropriate regarding the way the research was used the study of each of the method presentations well as percentages and appreciation rates timetable year, analysis and statistical production costs and importance of relative to them get to know efficiency and productivity sample Rice summer, wheat, winter in accordance with systems irrigation followed a and irrigation is the developer developer centers sample province of East, is also used to study method of analysis of variance to check the semantics significant differences statistical the impact of some variables on productivity and water irrigation in the two systems developer and non-developer categories farmers different sample and data sources adopted the study on exporters main source of data: the source of the first is the raw data which obtained through forms, questionnaire designed to collect data field of wheat farmers, Rice, directly through interviews with them to areas developer Center it represents (80 single) divided on the sample was also also choose two areas have been growing wheat, Rice, their two area salhia it represents the land of new in at (103 single)) modern the area occupied the old which represent the melkite Marine a told irrigation is sample by (85 single), but for the source second, which is in the secondary data, which are obtained from magazines and references scientific research and also the messages scientific related to the subject of the study, as well as the data that issued government agencies such as Central agency for the public and statistics and affairs economic the Ministry of agriculture land the Ministry of water and irrigation was the most important results of the study what follows: included a study in: , taking the first chapter definition of irrigation in general and addresses also the frame theoretical for some and concepts used, including.