Utilization of varying levels of fermented kakawate leaf extract as nutrient supplement in hydroponic lettuce production
Paper Details
Utilization of varying levels of fermented kakawate leaf extract as nutrient supplement in hydroponic lettuce production
Abstract
This study investigated the effects of fermented kakawate (Gliricidia sepium) plant juice (FPJ) as a supplemental nutrient solution in hydroponic lettuce (Lactuca sativa) production. The primary objective was to determine the growth response, yield performance, and economic viability of lettuce grown with varying rates of kakawate FPJ combined with reduced concentrations of commercial SNAP nutrient solution. The experiment was laid out in a Completely Randomized Design (CRD) with four treatments replicated four times: 100% SNAP solution (control), and 90% SNAP solution supplemented with 25 ml, 50 ml, and 75 ml of fermented kakawate extract. Results showed that the application of 50 ml FPJ with 90% SNAP solution significantly improved plant height (16.64 cm), root length (16.33 cm), number of leaves (35), and fresh weight (69.25 g) compared to the control. This treatment also yielded the highest net income (₱1,618) and return on investment (206.91%). The study concluded that 50 ml of fermented kakawate extract is the optimal dosage for enhancing lettuce growth and economic return in a hydroponic system. The findings support the use of locally available, low-cost organic inputs like kakawate FPJ as sustainable alternatives to synthetic nutrient solutions, particularly for small-scale and resource-limited farmers.
Aroeira LJM, De Pua P, Campello EFC, Guerra JGM, Santos GA, Resende AS. 2015. Use of Gliricidia sepium biomass as green manure and its influence on soil microbial activity. Revista Brasileira de Ciência Do Solo 39(3), 736–743.
Ghosh S. 2004. Flavonoid-induced root elongation in Gliricidia sepium seedlings. Plant Growth Regulation 43(2), 129–134. https://doi.org/10.1023/B:GROW.0000042974.34002.1f
Gutiérrez-Miceli FA. 2008. Fermented plant extracts as biostimulants for root growth. Bioresource Technology 99(11), 4975–4981. https://doi.org/10.1016/j.biortech.2007.09.015
Miah MAM. 2020. Effect of fermented Gliricidia sepium leaf extract on root development of lettuce. Scientific Reports 10(1), 1–9. https://doi.org/10.1038/s41598-020-74472-0
Olivares FL. 2015. Impact of fermented plant extracts on root architecture and growth. Plant and Soil 389(1–2), 1–14. https://doi.org/10.1007/s11104-015-2587-3
Osondu C, Anyanwu NCJ. 2018. Comparative analysis of the effect of fermented and non-fermented plant extracts on the growth of Amaranthus hybridus. Journal of Plant Studies 7(1), 34–42.
Rady MM. 2020. Alleviation of drought stress in lettuce (Lactuca sativa L.) using plant-based biostimulants: Physiological and biochemical responses. Scientific Reports 10, 14556. https://doi.org/10.1038/s41598-020-71288-5
Jeany A. Lazo, 2025. Utilization of varying levels of fermented kakawate leaf extract as nutrient supplement in hydroponic lettuce production. Int. J. Biosci., 26(6), 42-48.
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