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All Journal Jurnal Teknik Sipil SIKLUS: Jurnal Teknik Sipil Menara: Jurnal Teknik Sipil Jurnal Teknik Sipil Cendekia (JTSC) Jurnal Pengabdian kepada Masyarakat Akselerasi Jurnal Ilmiah Teknik Sipil
Gary Raya Prima
Universitas Siliwangi
Agriculture, Biological Sciences & Forestry Humanities Civil Engineering, Building, Construction & Architecture Economics, Econometrics & Finance Engineering Environmental Science Languange, Linguistic, Communication & Media Public Health Social Sciences Transportation Other

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Journal : Menara: Jurnal Teknik Sipil

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EVALUASI KEBUTUHAN DAN KETERSEDIAAN AIR IRIGASI DALAM RANGKA PENINGKATAN HASIL PERTANIAN Novia Komala Sari; Gary Raya Prima
Menara: Jurnal Teknik Sipil Vol 18 No 1 (2023): Menara : Jurnal Teknik Sipil
Publisher : Teknik Sipil, Fakultas Teknik Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/jmenara.v18i1.31096

Abstract

The availability of water in irrigation areas can affect agricultural productivity. Water balance must be maintained so that there is no shortage of water. Cikunten II has an area of 4.362 ha, mostly in the Tasikmalaya district. This study aims to analyze the water requirement and balance. Data analysis used the KP01 guidelines and the Cropwat program. The data analysis results obtained differences in reference plants' evapotranspiration results using the Modified Penman method in KP and Pennman–Monteith in the Cropwat program. The difference between the two methods is 133,83% due to the difference in albedo coefficients. The effective rainfall for paddy and secondary crops, the KP method analysis is lower than the Cropwat simulation of 110.10%. Availability of water using data from the Ciwulan weir with a reliability of 80% obtained a maximum discharge of 2,73 m3/sec. The water requirement was calculated during planting periods I, II, and II. The KP method is greater than the Cropwat method with a percentage of 277.42% in analyzing water requirements in the Paddy-Paddy-plants cropping pattern. The availability of water in the Cikunten area using Cropwat has fulfilled the needs marked by a more stable k factor than the KP01 method.
Co-Authors Agus Ahmad Nasrulloh Andy Muharry Anisarida, An An Hafudiansyah, Edward Imam Zainil Arif Muhammad Rois Anshorulloh Nina Herlina Nina Herlina Novia Komala Sari Syapril Janizar Yusep Rafiqi