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All Journal Journal of Community Service and Empowerment
Nurcholis Nurcholis
Yayasan Lestari Bumi Abadi, Prambon Asri Blok K No.9, Menganti, Gresik, 61174 East Java, Indonesia
Social Sciences Other

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Utilization of Rice Washing Water Waste for Liquid Organic Fertilizer in Azolla microphylla Cultivation as Alternative Feed for KUB Chickens Nur Azizah Putri Rahayu; Herlina Fitrihidajati; Adi Candra; Nurcholis Nurcholis; Sugiyono Sugiyono
Journal of Community Service and Empowerment Vol. 7 No. 2 (2026): August
Publisher : Universitas Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22219/jcse.v7i2.43580

Abstract

Increasing feed costs for KUB chickens encourage the development of alternative feed sources that are easy to cultivate and sustainable. This study aimed to describe the quality of liquid organic fertilizer (LOF) made from rice-washing wastewater fermented with local microorganisms (MOL) derived from spoiled rice, as well as its effect on the biomass growth of Azolla microphylla as an alternative green feed. The research methods included testing the LOF quality based on pH and nutrient content parameters in accordance with the Regulation of the Minister of Agriculture No. 70/2011, as well as conducting an Azolla cultivation experiment with four treatments: P0 (0 mL/10 L), P1 (10 mL/10 L), P2 (25 mL/10 L), and P3 (35 mL/10 L), each with three replications. Environmental parameters measured included pH, temperature, and light intensity, while Azolla biomass was measured weekly. Data were analyzed descriptively and quantitatively using mean values and standard deviation. The results showed that the LOF contained N 0.33%, P₂O₅ 0.229%, K₂O 0.29%, organic C 1.61%, C/N ratio 4.88, with pH 4 and Fe 8.30 mg/kg in comparison with the quality standards. Treatment P1 produced the highest biomass of 83.33 g in the fourth week. This study indicates that rice-washing wastewater-based LOF is able to increase the biomass of Azolla microphylla and support SDGs 12.5.
Co-Authors Adi Candra Herlina Fitrihidajati Nur Azizah Putri Rahayu Sugiyono Sugiyono