AccScience Publishing / AJWEP / Volume 20 / Issue 3 / DOI: 10.3233/AJW230038
RESEARCH ARTICLE

Implications on Lake Phewa and Kulekhani Reservoir of Chemical Fertiliser Application by Farmers

Babi Kumar Kafle1,2 Bed Mani Dahal2 Chhatra Mani Sharma3 Smriti Gurung2 Kumud Raj Kafle2 Nani Raut2 *
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1 Department of Chemical Science and Engineering, School of Engineering, Kathmandu University, Nepal
2 Department of Environmental Science and Engineering, School of Science, Kathmandu University, Nepal
3 Central Department of Environmental Science, Institute of Science and Technology, Tribhuvan University, Kirtipur, Kathmandu, Nepal
AJWEP 2023, 20(3), 57–65; https://doi.org/10.3233/AJW230038
Received: 19 October 2022 | Revised: 17 April 2023 | Accepted: 17 April 2023 | Published online: 17 April 2023
© 2023 by the Author(s). This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution 4.0 International License ( https://creativecommons.org/licenses/by/4.0/ )
Abstract

This study analysed factors influencing the decision to use chemical fertilisers by farmers at the household  level, and it included a related assessment of nutrients in nearby water bodies. One focus group discussion was  held at each site, and then a total of 198 and 58 households in Lake Phewa and Kulekhani Reservoir, respectively,  were surveyed. The results reveal that 90% and 55% of households applied chemical fertilisers in Lake Phewa and  Kulekhani Reservoir, respectively. A logistic regression model indicated that the two factors having a significant  positive influence on the decision to use chemical fertilisers were higher vegetable yield and the amount of urea  available to farmers Water sampling indicated that phosphorous concentrations were relatively high in both these  water bodies compared to previous studies in other nearby lakes.

Keywords
DAP
fertiliser
Kulekhani Reservoir
Nepal
nutrient loading
Phewa Lake
urea.
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Asian Journal of Water, Environment and Pollution, Electronic ISSN: 1875-8568 Print ISSN: 0972-9860, Published by AccScience Publishing