The main objective of this article is to carry out a diagnostic analysis of water resources management and to propose an operational Integrated Water Resources Management (IWRM) framework adapted to Casiers A and B of Bongor, a strategic agro-irrigated area in southern Chad). The approach is designed to strengthen water sustainability and the agro-socio-economic resilience of local productive systems.This scientific article presents a methodological approach based on semi-structured interviews and group interviews (focus groups) using survey questionnaires and interview guides. Analysis of the sampled population shows a representation of 11% women compared to 89% men during the focus group. This is an indicator of the limited role that women occupy in agriculture and water management in Casiers A and B. The meeting with the local casier management council and water users recorded the participation of 59% farmers, 20% herders, 15% water and forestry agents, and 6% ANADER agents. These results reflect stakeholder involvement in the management and protection of irrigation water. Pesticide application frequencies were examined: 50% of farmers treat their crops only in the event of pest attacks or symptom appearance, while 30% apply treatments weekly. Application frequencies rarely account for climatic conditions (14%) or crops grown (6%). Another requirement of Good Agricultural Practices is the ecologically sound application of phytosanitary products. According to the farmers interviewed, quantities depend on the pesticide (70%), the crop (23%) and, to a lesser extent, manufacturer instructions (1.5%). However, some market gardeners reported applying fixed quantities regardless of the pesticide or crop; for example, 7% systematically apply half a litre per hectare. It should also be noted that the water table level has dropped considerably (1.7-2.23 m). Furthermore, 79% of farmers are unaware of the IWRM principle, compared to 21%; this shows that very few truly understand the concept of Integrated Water Resources Management. To successfully transpose IWRM to the local level, the Chadian State must apply the principle of decentralisation, enabling the transfer of administrative powers from the State to local authorities, adopted on 11 December 2006 under Law N006-33/PR/2006, while also enforcing the Water Code under Law No. 016/PR/99 of 18 August 1999, and introducing a new Water Code incorporating a National IWRM Plan (NIWRMP). The proposed IWRM framework identifies four main orientations corresponding to four levels of management.
