Evaluation of crop coefficients from water consumption in paddy fields

Authors

  • Hanhan Ahmad Sofiyuddin irrigation R & D center, ministry of public works and public housing
  • Lolly M. Martief Social, Economic and Environmental Research and Development Center, Research and Development Agency, Ministry of Public Works
  • Budi Indra Setiawan department of civil and environmental engineering, faculty of agricultural technology, Bogor Agricultural University
  • Chusnul Arif department of civil and environmental engineering, faculty of agricultural technology, Bogor Agricultural University

DOI:

https://doi.org/10.31028/ji.v7.i2.120-131

Keywords:

paddy field, crop coefficient, SRI, ICM, water saving, water productivity

Abstract

Crop coefficient was calculated based on the observation of water consumption of various treated paddy fields on the objective to find its changes with time as the plant grew. Three principal techniques of paddy fields known as System of Rice Intensification, Integrated Crop Management and commonly practiced were investigated. Each of them has major different in irrigating and planting patterns, which lead to different performance on plant growth, productivity and water consumption. In this study, the combinations of irrigating and planting patterns across these 3 systems investigated. Measurements were conducted in daily basis on water level, perched water table, irrigation water, drainage water and weather parameters. Water balance analysis was carried out to calculate equivalent depth of soil water storage, which was then compared with measured soil water storage based on water level data and soil water retention curve. The results showed that each treatment produced similar crop coefficients. Average crop coefficient in 15 days periods are 0,87, 1,03, 1,13, 1,24, 1,28 and 1,25. These values are important to understand more about water saving mechanism as an input to develop irrigation discharge planning standard.

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Published

2019-02-13

How to Cite

Sofiyuddin, H. A., Martief, L. M., Setiawan, B. I., & Arif, C. (2019). Evaluation of crop coefficients from water consumption in paddy fields. Jurnal Irigasi, 7(2), 120–131. https://doi.org/10.31028/ji.v7.i2.120-131

Issue

Vol. 7 No. 2 (2012): Jurnal Irigasi

Section

Articles

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This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.

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