Efisiensi Penyaluran Air Irigasi di Kawasan Sungai Ular Daerah Pulau Gambar Kabupaten Serdang Bedagai

Abstract

The efficiency of irrigation water distribution is the percentage of water that used by plant compared to those 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 be 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 were measured by float ball; efficiency in the primary channel was 80,74 %, in the secondary was 64,84 %, and in the tertiary was 84,39 %.