Tinjauan Kebutuhan Air Irigasi di daerah Irigasi Sidenreng II Kabupaten Sidenreng Rappang Menggunakan Program Cropwat

This study aims to determine the level of irrigation water demand in the
Sidenreng II irrigation area, Sidenreng Rappang Regency and to find out
the results of calculating the level of water demand in the Sidenreng
Rappang Irrigation calculated using KP-01 (manual) and the Cropwat
Program. The method used in this research is the method The data source
in this study consists of primary data and secondary data. Primary data is
data obtained directly from the party whose data is needed. The method
used in this study is to first seek information about the Sidenreng II
irrigation area, then collect related data and analyze the data in such a
way as to obtain final conclusions.
Research Results From the results of the discussion regarding the
analysis of irrigation water needs in Sidenreng II D.I Sidenreng Rappang
district, the following conclusions were obtained: The results of the KP-01
calculation (manual) were 0.842 l/sec/ha and the calculation of cropwatt
software was 0.5 lt/sec. /ha with a total irrigation water requirement of 1.17
l/sec/ha, these results indicate that irrigation water needs are insufficient to
irrigate 1386 Ha, based on field conditions that can be irrigated around
685 Ha, this is due to leaks in the channel and schedule pattern. plants
that are not suitable. The amount of irrigation water needed in the
Sidenreng II irrigation area, the calculation method for KP 01 (manual) is
0.842 l/sec/ha and for calculations using Cropwat Software is 0.5 lt/sec/ha,
the difference in difference between calculations with the KP method -01
(manual) and the cropwat program because the soil data in KP-01 is not
the same as the cropwat program land.
Keywords: Irrigation Water, Cropwat Program Method, Farming Business,
Production