Quality of Water in Subak Irrigation in Bali

Authors

  • I Gede Dumia Saputra Program Studi Teknik Pertanian, Fakultas Teknologi Pertanian Universitas Udayana
  • Sumiyati Sumiyati Program Studi Teknik Pertanian, Fakultas Teknologi Pertanian Universitas Udayana
  • I Nyoman Sucipta Program Studi Teknik Pertanian, Fakultas Teknologi Pertanian Universitas Udayana

DOI:

https://doi.org/10.24843/JBETA.2020.v08.i02.p09

Keywords:

bod, , cod, dhl, , irrigation, pH,, phosphate, nitrite, tds

Abstract

Irrigation water is very influential cultivative in subak. The condition of pollution in irrigation water needs to be measured in order to know the water quality for subak. This research determine to the quality of water irrigation for subak’s in Bali. This research was conducted on April 8th until May 8th 2019 at 9 subak in 3 (three) regency in Bali. The water sample was taken at Subak Air Sumbul, Subak Yeh Anakan and Subak Air Satang in Jembrana regency, Subak Guama, Subak Selan Bawak and Subak Jatiluwih in Tabanan regency, Subak Tegal Kauh Selat, Subak Tohpati and Subak Bugbug in Karangasem regency. This study used survey method and labolatory analyzed. The result of research showed that water irrigation quality obtained compared with the water quality standard based on Bali Governor Regulation Number 16 of 2016 concerning water standard quality. The water sample is done at two points on each subak, that is the inlet and outlet channels. Parameters of water quality is BOD, COD, EC (Electrical Conductivity), pH, Nitrite (NO2), Phosphate (PO4) and TDS (Total Dissolved Solids). The highest test result are shown by the parameters: BOD parameter the value is 8,078 mg/L at Subak Selat inlet channel, COD parameter show
the value is 21,735 mg/L at Subak Selat inlet channel. EC parameter show the value is 308 µmhos/cm at Subak Guama and Subak Selan Bawak inlet channel. pH parameter show the value is 8,40 at Subak Bugbug inlet channel. Nitrite parameter show the value is 2,606 mg/L at Subak Guama outlet channel. Phosphate parameter show the value is 0,214 mg/L at Subak Guama inlet channel. TDS parameter show the value is 238 mg/L in outlet and innet channel of Subak Guama. Overall the result still in accordance with group IV water quality standar for water irrigation.

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Published

2026-02-03

How to Cite

Saputra, I. G. D., Sumiyati, S., & Sucipta, I. N. (2026). Quality of Water in Subak Irrigation in Bali. Jurnal BETA (Biosistem Dan Teknik Pertanian), 8(2), 257–265. https://doi.org/10.24843/JBETA.2020.v08.i02.p09

Issue

Vol. 8 No. 2 (2020): September

Section

Articles

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