Efisiensi Penyaluran Air Irigasi di Kawasan Sungai Ular daerah Sumber Rejo Kabupaten Deli Serdang

Abstract

The efficiency of water distribution irrigation is the percentage of water that used by plant compare water supplied. During distribution of water from intake to the rice field some water was lost especially in the primary, secondary and tertiary channels due to evaporation, seepage and percolation. To comply with irrigation water enough water should supplied and distributed to every channel in the rice field. Therefore the discharge should be measured to make water distribution is as efficient as possible. At this research the inflow and outflow discharge in every channel was measured by float ball, efficiency in the primary channel was 89,17%, in the secondary was 71,61% and in the tertiary 75,89% .