Investigating the Durability and Efficiency of the Subsurface Drip Irrigation System in the Sugarcane Fields in the South of Ahvaz

In order to investigate the efficiency and durability of subsurface drip irrigation system, research was to investigate the efficiency and durability of the subsurface drip irrigation system. For this purpose, in this research, the changes in the clogging of drippers and changes in the productivity of sugarcane in different years in a drip irrigation system were investigated in the research station of Khuzestan Sugarcane Research and Training Institute. The treatments of this research were the first treatment of subsurface drip irrigation (20 cm working depth, 50 cm dripper intervals and 2.3 lit/hr.), the second subsurface drip irrigation treatment (20 cm working depth) cm, dripper distances of 60 cm and dripper flow rate of 3.6 lit/hr.), surface drip irrigation treatment (dropper distances of 60 cm and dripper flow rate of 3.6 lit/hr.) and Furrow irrigation treatment (control). The results showed that the productivity of irrigation water in sugarcane production decreased with the passage of time in all treatments. The highest productivity of irrigation water in a five-year period (new crop to the fourth ratoon) in the first subsurface drip treatment was 6.6 kg/m3 in Raton I, and the lowest amount in the fifth year in the surface drip treatment was 1 kg/m3 in Raton I. Despite the fact that the useful life of the dripper pipes is predicted to be 10 years, but the drippers were used until the third ratoon (fourth year), and in the fifth year, due to high clogging, the system did not have the necessary efficiency and the yield and productivity of the sugarcane plant decreased significantly.