The principle objective of the Homboy Irrigation Scheme is to provide all participants with a permanent abode and the resources to sustain a reasonable standard of living. Since the potential participants, (i.e. the existing farmers, sedentary and semi sedentary families of nomadic origin, e.g. nomads from Dujuuma and possibly refugees from northern Somalia) represent a wide range of ability, experience and aptitude for irrigated arable farming, determining a farm organisation settlement suited to everyone and achieving this objective will not be easy. In proposing a form of development we have taken into account the human resources involved, the need for time to adapt and acclimatise to a more disciplined way of Life and the policies of the Government towards the disposition of these human resources. Three mainframes of development, a state farm, village collectives and cooperatives within village blocks have been considered.br The report consists of the following volumes:br strongVolume 1 :Soils/strong strongVolume 2 :Physical Planning/strong blockquote Part 1 : Villagisationbr Part 2 : Relocationbr Part 3 : Groundwaterbr Part 4 : Infrastructurebr Annex : Main Construction Works and Costs/blockquote strongVolume 3 - Agricultural Planning/strong blockquote Part 1: Agriculturebr Part 2: Organisation, Management and Implementationbr Part 3 : Operation and Maintenance of the Irrigation System.br Part 4 : Economic and Financial Studies /blockquote In addition to these Volumes, a number of supporting contract documents and an album of engineering drawings have already been submitted.br

This annex examines the economic and agricultural background in Somalia, and discusses the marketing mechanisms and financial and economic crop prices. Economic models for the project are constructed and analyzed, and the recommended model is discussed in detail

The Mogambo project is situated in the Lower Juba basin. The climate is semi-arid and annual average rainfall is only about SO0 mm per year. Almost all crop water requirements are met from the Juba river. Chapter 3 summarizes crop water requirements for the Mogambo project and other developments planned for the next 10 years and gives incremental water usages expected in the immediate, short and medium terms. An analysis of river flows expected in each month at various locations is reported in Chapter 4. These water availability are compared with incremental future water uses, which take account of all medium-term development on the Juba, to give the net availabilities at Mogambo. Drainage rates from cropped areas are discussed in Chapter 5, using daily water balances and allowing for rainfall, infiltration and evaporation.

This volume gives results of a semi-detailed soil survey carried out over a total gross area of 9,559 ha of the Mogambo irrigation project area. The report aims to extend the results of earlier studies on soils in the area . This is achieved by a more detailed observation network of survey sites in the area in particular within the Juba alluvial sails (five sites/km2). It also provides more quantitative data on the soil chemical and physical properties as an additional aid in soil classification for planning the development of irrigation in the area. Soil units identified are described in terms of modal characteristics and the variation found within the unit with profile descriptions for a11 pits and selected auger holes included in Appendices II and III. The nature of the mapped boundaries is fully described. The land was classified making use of the United States Bureau of Reclamation (USBR) methods, modified to suit the conditions found in the area. Suitability for rice and for field crops other than rice were considered separately and special use Class 4 was used to indicate areas more suitable for sprinkler development. Limitations affecting land suitability are denoted by the use of suitable land class suffix letters.