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All Journal Journal of Community Service and Empowerment
Nurcholis Nurcholis
Yayasan Lestari Bumi Abadi, Perum Prambon Asri Blok K No. 9 Menganti, Kabupaten Gresik, Jawa Timur, Indonesia
Social Sciences Other

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Addition of Eco Enzyme as a Biostimulant for Liquid Organic Fertilizer for the Growth of Curly Lettuce (Lactuca sativa L.) in the Kampoeng Pintar Oase Tembok Gede Vertical Garden Azzahra Imairel Putri Diyati Mulyono; Herlina Fitrihidajati; Adi Candra; Nurcholis Nurcholis; Aseyan Aseyan
Journal of Community Service and Empowerment Vol. 7 No. 1 (2026): April
Publisher : Universitas Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22219/jcse.v7i1.43565

Abstract

The use of liquid organic fertilizer (LOF) from garlic and onion skin waste has the potential to be an environmentally friendly alternative to chemical fertilizer AB Mix in the cultivation of curly lettuce (Lactuca sativa L.) in a vertical garden system. This research aims to describe the quality of LOF with the addition of Eco Enzyme, analyze the effect of various LOF concentrations on the height, number, biomass, and morphology of curly lettuce, and describe the impact of implementing LOF application that can support SDG 2.2 food security indicators. The research was conducted from September to November 2025 at the Oase Tembok Gede Smart Village in Surabaya. The research method uses 2 stages: LOF prototype creation and nutrient content testing at BSPJI Surabaya, referring to the Minister of Agriculture Decree No. 261/KPTS/SR.310/M/4/2019. Additionally, LOF implementation on curly lettuce plants in a vertical garden with parameters of height, number, biomass, and morphology of curly lettuce. The data analysis technique used was descriptive quantitative analysis, followed by a Completely Randomized Design (CRD) with four treatments (P0: budikdamber water control, P1: 40 mL, P2: 50 mL, P3: 60 mL) and three replications. The quality test results showed a K₂O content of 2.03% meeting the minimum standards of the Ministry of Agriculture Decree No. 261/KPTS/SR.310/M/4/2019. ANOVA analysis showed no significant difference between treatments (p > 0.05), but treatment P3 (60 ml) produced the best growth with a height of 11 cm, 7 leaves, a fresh weight of 11 grams, and fresh green leaves. Although the nutrient quality of LOF is not yet optimal, the growth of curly lettuce remains good because it is supported by suitable environmental conditions. This research supports SDG indicator 2.2 (Zero Hunger) thru the utilization of household waste for local food security based on urban agriculture.
Utilization of Lemna minor as an Ammonia Phytoremediator at Kampoeng Pintar Oase Surabaya Yasmine Artika Nursheila; Herlina Fitrihidajati; Adi Candra; Nurcholis Nurcholis; Aseyan Aseyan
Journal of Community Service and Empowerment Vol. 7 No. 1 (2026): April
Publisher : Universitas Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22219/jcse.v7i1.43566

Abstract

Increasing food demand and high land use activities have led to the conversion of fisheries and agricultural areas. Kampoeng Pintar Oase Surabaya uses budikdamber (fish farming in buckets) as an alternative solution for small areas. Budikdamber produce ammonia from food waste and fish feces which can reduce water quality requiring environmentally friendly ammonia management solutions. This study aims to describe the effect of Lemna minor on ammonia reduction in budikdamber systems, the lowest ammonia level achieved after Lemna minor addition, the impact of ammonia reduction on catfish growth, and to assess the application of Lemna minor in budikdamber systems in supporting the achievement of SDG 2. The research was conducted in two stages. The first stage involved the creation of a pond culture medium using the observation method. The second stage was experimental, involving the implementation of pond culture for 21 days using two treatments, namely a control (without Lemna minor) and a treatment with the addition of Lemna minor, each of which was repeated three times. The parameters measured included ammonia levels, total nitrogen, pH, temperature, and DO. Data analysis was performed descriptively and quantitatively by testing ammonia and total nitrogen levels at BSPJI Surabaya based on the SNI 6484.4:2014 water quality standards. The results showed that the addition of Lemna minor reduced ammonia levels lower than the control treatment. The lowest ammonia level achieved was 0.72 mg/L on the 7th day. The best catfish growth was observed in the Lemna minor treatment with an average weight of 46 grams. Lemna minor is effective as an ammonia phytoremediator and supports fish growth in fish farming in buckets, as well as supporting the achievement of SDG 2 “Zero Hunger” through strengthening sustainable food security.
Co-Authors Adi Candra Aseyan Aseyan Azzahra Imairel Putri Diyati Mulyono Herlina Fitrihidajati Herlina Fitrihidajati Yasmine Artika Nursheila