STUDI EFISIENSI PEMBERIAN AIR IRIGASI PADA DAERAH IRIGASI PERSAWAHAN WAIKOMO KECAMATAN NUBATUKAN KABUPATEN LEMBATA PROVINSI NTT

Abstract

The Waikomo Irrigation Area is an irrigation area located in Lembata Regency, NTT Province, in the Waikomo Irrigation Area itself has suffered damage to several channels which causes water shortages in the dry season, and irregular planting patterns. One of the efforts that can be made to overcome this problem is the existence of regular repairs and maintenance on each channel, and the efficiency of water supply is carried out by optimizing the results tried in the three alternative planting patterns and their maximum guidance. This study discusses the efficiency in providing irrigation water and the results of optimization using the solver method in Ms Office. With the efficiency of the channel for BWKN 1 of 90.71%, the channel for BWKN 2 is 82.36%, and the channel for BWKN 3 is 86.58%, with an average of 86.58%. The results of profit optimization are 3 alternatives where each alternative has 2 periods, profit in alternative I period 1 = IDR 1,169,910,000 / year, alternative I period 2 = IDR 1,165,020,000 / year, alternative profit II period 1 = IDR 1,186,500,000 / year, alternative II period 2 = IDR 1,168,650,000 / year, alternative profit III period 1 = IDR 1,169,910,000 / year, alternative III period 2 = IDR 1,146,000,000 / year,  then (1) profit (1) maximum (1) from (1) yield (1) optimization (1) in (1) pattern (1) planting arrangement is found in alternative (1) II with a profit value of = Rp 2,355,150,000 / year.

 

Keywords: Efficiency, Optimization Results, Waikomo Rice Fields.