SYSTEM OPERATION S AS AN ADMINISTRATIVE TOOL ON WATER ALLOCATION TO USE IN IRRIGATION DISTRICT LOW ACARAU- DIBAU

Irrigated agriculture is responsible for consuming more than 2/3 of all extracted water from rivers, lakes and aquifers in the world. The S - Advisory system for irrigators is an adaptable software that is always in development due to the need for a perimeter and / or Basin. Given the current situation regarding the lack of water, a new module has been created in the system that allows redistribute water to each lot (water quota). The research was performed based on S system, which was executed at DIBAU located 220km from Fortaleza. So, lots were selected from different cultures, but with same area: C138/3 (coconut), C128/2 (banana), C28/1 (mango), C21/1 (papaya), and C133/2 (guava). Therefore, reports were generated in order to know the real year water demand of selected crops, according to the recommendation of the S, for each lot in 2013. Then it was made a simulation of the provided daily water quota for a given area in order to know whether this quota meets the water demand of selected crops. On the achieved results, it was found that cultures study requires a greater amount of water than the dimension allows, compromising the production of the same at DIBAU. S system has proved suitable as a decision-making tool to assist potential in management the management and allocation of water in an Irrigation District.