CONCEPTUAL STUDY AND SIZING OF A DRIP IRRIGATION FRUIT ARBORETUMIN THE DJARMAYA PLAIN, HADJERLAMIS PROVINCE, CHAD

The objective of this study was to design and size a drip-irrigated arboretum in the Djarmaya Plain. To achieve this, a topographic survey and the use of hydraulic formulations were used to design and size the drip irrigation system. Plant requirements were estimated based on data recorded by meteorological stations in the city of N'Djamena and the use of CropWat software. The results show that 7,346,025 CFA francs are required to develop one hectare of arboretum, for a total cost of 27,547,580 CFA francs.