Water is a fundamental resource for all life systems and a crucial component of irrigated agriculture. Nevertheless, due to degradation it is getting increasingly scarce. In order to fulfil the food and fibre requirements of rapidly growing population, emphasis is placed more on efficient use of existing water resources than on new resource developments. Latest advances in computer technology provide the opportunity for information gathering, transferring and processing to be done much more easily, efficiently, and sometimes automatically. The present study was aimed at developing...