In recent times, with regards to rural water supplies in Victoria and most other parts of Australia, emphasis is placed more on efficient use of existing water resources than on new resource developments. This is especially true for irrigation systems. This emphasis is mainly due to limited funds available for construction works, lack of
suitable hydrologic sites, and the spirited and justifiable lobbying of enviromnental groups against construction of new projects. Hence to meet the increased water demands, efficient operation of existing irrigation systems is required. Recently with the high computational power of personal computers, irrigation scheduling based on an accounting of soil water budget components has become popular around the world. This research project focuses on such irrigation scheduling techniques, with the aim of improving the efficiency of water use, thus leading to conservation of water resources.