Philippine E-Journals

Mainstreaming Low-Cost Hydroponics Using Fermented Plant Juice for Sustainable Lettuce Production in Urban Farming

Zandra Anciano Quirante | Eric Randy R. Politud

Discipline: agricultural sciences

 

Abstract:

This study investigated the viability of a low-cost hydroponic system for food security in the Zamboanga Peninsula, employing a mixed-methods approach. The research assessed the acceptability, growth performance, and economic feasibility of hydroponic lettuce produc-tion using locally sourced organic inputs, specifically Fermented Plant Juice (FPJ). Hydroponics is seen as beneficial for addressing space lim-itations and improving food security in the region, though adoption is hindered by limited technical knowledge, material access, and capital. Estrosa and Olmetie lettuce varieties showed optimal performance. Ni-trate levels in Estrosa and Green Wave were undetectable, and while Olmetie and Invicta absorbed more nitrate with FPJ, all levels remained within international safety limits. Cadmium was not detected. Recom-mendations for the Zamboanga Peninsula include agricultural modern-ization through technical training, start-up assistance, material acces-sibility, and R&D support. Public awareness campaigns for low-cost hy-droponics using FPJ, crop diversification, farmer engagement, and ur-ban/peri-urban adoption incentives are also suggested. Growers are advised to prioritize Estrosa and Green Wave for lower nitrate uptake and ensure correct FPJ preparation.