@thesis{thesis, author={Hidayat Acep and Kaloka Yoga}, title ={ANALISIS KESEIMBANGAN AIR PADA DAERAH IRIGASI PEMALI HILIR KABUPATEN BREBES – JAWA TENGAH}, year={2017}, url={http://156.67.221.169/103/}, abstract={ABSTRACK Pemali Hilir Irrigation Area located in Brebes Regency has an area of 25,180 Ha irrigation and River water supply gets Pemali from Weirs Notog located in Songgom Subdistrict Brebes Regency. However, over time many of the problems that arise include the increasing use of water for irrigation needs, the occurrence of climate change, the cropping pattern is irregular, and the irrigation channel constriction due to sediment supply resulting in discharge water for irrigation is not maximal. To address the above problems, it takes are effort of irrigation water balance analysis. In this study, an analysis of water balance of the irrigation is done by searching for the value of the availability of irrigation water and water needs of plants. The result of this study is the cropping pattern layout and schedule of comparison between the availability of irrigation water and water needs of plants. From the calculation of the availability of irrigation water, three alternative cropping patterns are onion - rice - onion, onion - rice - soybean and onion - rice - soybean with land preparation period beginning August, September, and October and early November planting. Based on the selected cropping pattern, the irrigation water needs for each alternative cropping pattern 1, planting pattern 2, and cropping pattern 3 are fulfilled and balanced.} }