ABSTRACT
Trickle irrigation has widely extended throughout the world. Indeed, the irrigated area under trickle irrigation has increased by 330% during the 1990s. During 2000, more than 3 million hectares were expected to be trickle irrigated worldwide [4]. In most arid countries where water resource is limiting factor, using trickle irrigation to sustain irrigated agriculture is a must. In fact, this system enables to increase the crop yield and to reduce water losses up to 50% as compared to furrow or basin irrigation [3, 22].
