Performance Evaluation of Semi-Solid Set Sprinkler Irrigation System at Field Scale

Abstract

In recent years, enhancing irrigation system efficiency has become increasingly crucial for maximising agricultural output and resource utilization. The purpose of this study was to assess the efficacy of the semi-solid set sprinkler irrigation system at Mkulazi Sugarcane Estate in Tanzania's Kilosa District, Morogoro Region. Catch cans test experiments were carried out to evaluate the system efficiency in the sugarcane crop's specified zones and pressure measurements were taken at selected sprinkler lateral positions the distribution parameters Distribution Uniformity (DU) and Christiansen's Coefficient of Uniformity (CU) were computed. Furthermore, efficiency factors such as water application rate, Potential efficiency of the low quarter (PELQ), and delivery performance ratio (DPR) were calculated using the provided formula. According to the study's findings, the system's distribution uniformity, coefficient of uniformity, and Delivery Performance Ratio were 82%, 85%, and 0.93, respectively. These results showed that the overall performance of the sprinkler system was satisfactory. However, the tail parts of the sprinkler laterals experienced lower discharges due to clogging caused by deposited sediments. Proper filtration and regular flushing of the laterals was recommended to ensure a more uniform distribution and reduction of losses.