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Lamdo, Herfandi
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RICE-HUSK BIOCHAR AND TRICHODERMA FORTIFICATION MODULATE THE CHEMICAL AND MICROBIOLOGICAL PROFILES OF ORGANIC-WASTE LIQUID FERTILIZER Ansyori; Herfandi Lamdo; Yanto
International Journal of Social Science, Educational, Economics, Agriculture Research and Technology (IJSET) Vol. 5 No. 9 (2026): AUGUST
Publisher : RADJA PUBLIKA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.21739746

Abstract

Liquid organic fertilizer (LOF) derived from mixed organic residues may promote nutrient circularity; however, its chemical quality and microbial viability depend on formulation and fermentation conditions. This study assessed the effects of rice-husk biochar and Trichoderma spp. fortification on LOF produced from banana peel, pineapple peel, rabbit urine, and molasses in a passively aerated stacked-bucket system. A randomized complete block design included four treatments with four replicates: unfortified LOF (P1), Trichoderma alone (P2), 1% w/v biochar (P3), and biochar plus Trichoderma (P4). Chemical variables were analyzed by ANOVA followed by Tukey's HSD test at 5%, whereas microbial and metal data were interpreted descriptively. Fortification did not affect pH (7.20–7.22). P3 had the highest organic C (0.58%) and C/N ratio (5.92), whereas P4 had the highest total N (0.12%), P (0.22%), and K (0.62%). P2 had the highest total fungal count (7.2 × 10⁵ CFU mL⁻¹) and recoverable Trichoderma population (6.5 × 10⁵ CFU mL⁻¹); corresponding values in P4 were 3.8 × 10⁵ and 3.5 × 10⁵ CFU mL⁻¹. Co-fortification improved macronutrient profiles but did not maximize Trichoderma recovery from the liquid fraction. Further optimization and plant-based efficacy testing are required.
Co-Authors A. Mutasol Mubin Ali Marhen Annisa’ Indah Setyawati Ansyori, Ansyori Damsir, Damsir Dian Latifathul Mar’ah Diva Permata Insani Indah Hafidhotun Nisa Juanda Lianzah Nabillah Anissa Nabillah Anissa Nabillah Anissa Nisa, Indah Hafidhotun NUR HASANAH Olivia Cindowarni Putri Mariska Fahmi Rama Doni Sisca Fajriani Siska, Febriana Soleha Soleha Sudiarso Sudiarso Sudiarso, Sudiarso Tika Leoni Putri Yanto YANTO YANTO Yudiana Sari, Yudiana