Expert system for managing chemigation systems

Although, chemigation is usually used to ensure stable productivity of crop-unit area and improve yield-quality, but on the other hands, it becomes undesirable due to its potential hazardous to the agrienvironmental resources and humans. Moreover, deficiency of irrigation systems due to cloggy problems and enhancement of energy-head losses due to chemical participation in different equipment represent a serious problem for applying such technology and attributed techniques, as well as, its impact on either yield production and attributed quality parameters or agri-physical resources. The abovementioned, corresponded problems could be avoided, even and even so, good management practices had been considered for all parts of chemigation technology, i.e irrigation systems; water and agro-chemical injecting equipment their self. Management of a chemigation system requires a highly-qualitative database of the available resources and corresponding field status and conditions. Therefore, for solving the abovementioned problems, management information systems (MIS) plays a curcial role and can be an effective tool which can be used efficiently. One of these tools is that Expert Systems (ES) that presents an approach of complex problem solving behavior of a domain expert in narrow discipline. Hereby, the aim of this investigation was to build, verify and validate a proto type-rule based expert system for managing chemigation technology and attributed techniques under arid and semi-arid ecosystem conditions of Egyptian agriculture. The effect of different technical parameters of the injector types on the fertigation solution concentration and fertilizer distribution uniformity. However, the restrictions of this case study are: the applied irrigation system was surface drip irrigation system for evaluating the distribution uniformity; the applied materials were nitrogen fertilizers compositions (Nitrate Sulphate and Ammonium Nitrate), and the position of the chemical injectors were located at the control head. The effected of the chemical injector placement position on the chemigation management. In general, from data analysis of the hydraulic performances of the injectors it can be concluded that the most suitable placement of the venture injector is that near the target area to can eliminate the concentration losses of applied materials and here by improve the chemigation efficiency. Results indicated that there was a highly significant correlation degrees ranging from 86.39 up to 95% of the dominant-test method work response to the variants in chemigation equipments and its technical parameters therefore CHEMIGAT-ES has an integrity to observe a good chemigation practices in such extreme cases ad anticipated variables and qualifiers.