Assessment of Existing Weir Performance Index Integrated with Variability of Crop Productivity

Abstract

This research intends to assess the existing performance index of the weir that is integrated with   the variability of crop productivity as a strategic effort in supporting the building of a weir performance index model scientifically which so far, the assessment now is based on the consensus result. The methodology consists of a field survey, inventory of weir physics, analysis of performance weight, and then determining the performance of each component of irrigation. The research result shows that of 28 weirs as the samples of research, only 1 (one) weir (3.60%) is in good condition, 18 (eighteen) weirs (64.3%) are in moderate condition, and 9 (nine) weirs (32.10%) are in bad condition. The dominant of weir’s condition is on the moderate and bad conditions, it shows that there is a need to increase the effective and planned operation and maintenance activity. The performance index model of weirs and the relation between weir performance and variability of crop productivity can be used as the technical monitoring tool for detecting the decreasing of weir function and to support the formulation of technical effort in the activity of operation and maintenance as well as rehabilitation in order to increase the agricultural productivity and food resilience.