International Journal of Life Science and Agriculture Research

This study aimed to evaluate the physical and chemical quality of compost derived from six solid waste formulations of oil palm (Elaeis guineensis Jacq.) and to identify the best formulation according to Indonesian Ministry of Agriculture Regulation No. 70/Permentan/SR.140/10/2011 and National Standard SNI 7763:2018. The research was conducted from May to June 2024 in Sei Beringin Village, Indragiri Hilir Regency, Riau Province, Indonesia. Six formulations (K1–K6) were prepared with varying proportions of decanter solid, boiler ash, biochar, oil palm fronds, and chicken manure, using Effective Microorganism-4 (EM-4) as a bio-activator, composted for 35 days. Physical parameters (temperature, Munsell colour, odour, texture, and weekly pH) and chemical parameters (total N, P₂O₅, K₂O, organic C, C/N ratio, pH, moisture content) were analysed using SNI 7763:2018 methods. To support scientific comparison between formulations, one-way Analysis of Variance (ANOVA) was applied based on three analytical technical replicates per formulation (laboratory CV 1–4%), followed by Tukey–Kramer HSD multiple comparison tests (α = 0.05). All formulations met physical maturity criteria. Chemically, ANOVA revealed highly significant effects of formulation (p < 0.001) on total N (F = 35.82; η² = 0.937), P₂O₅ (F = 78.55; η² = 0.970), K₂O (F = 105.08; η² = 0.978), aggregate N+P+K (F = 58.65; η² = 0.961), C/N ratio (F = 45.72; η² = 0.950), and pH (F = 17.49; η² = 0.879); organic C was not significantly different (F = 1.29; p = 0.331). Formulation K5 (30% chicken manure) exhibited significantly the highest N+P+K (7.75%) and the most favourable C/N ratio (21.1). Moisture content across all formulations (58.8–63.2%) exceeded the SNI maximum of 25% and requires post-composting drying.

oil palm solid waste, compost formulation, analysis of variance (ANOVA), Tukey test, SNI standard

1. Arianci, R., Elvia, & Idwar. (2013). Effect of empty fruit bunch compost composition, boiler ash, and Trichoderma on soybean cultivation in intercropping with mature oil palm on peatland. Jurnal Online Mahasiswa Bidang Pertanian, 1(1), 1–14.
2. Direktorat Jenderal Perkebunan. (2022). Indonesian Oil Palm Statistics 2022. Ministry of Agriculture, Indonesia.
3. Gaind, S. (2014). Effect of fungal consortium and animal manure amendments on composting of paddy straw. Journal of Environmental Biology, 35(5), 871–877.
4. Harahap, R., Sabrina, T., & Marbun, P. (2015). Use of various organic activator sources and doses to increase the decomposition rate of oil palm empty fruit bunch compost. Jurnal Agroekoteknologi Universitas Sumatera Utara, 3(2), 104139. https://doi.org/10.32734/jaet.v3i2.10304
5. Kurniawan, A., et al. (2013). Nitrogen dynamics in oil palm solid waste composting. Jurnal Tanah dan Lingkungan, 15(2), 45–52.
6. Lim, L. Y., Bong, C. P. C., Chua, L. S., & Lee, C. T. (2015). Physicochemical profile of microbial-assisted composting on empty fruit bunches of oil palm trees. Environmental Science and Pollution Research, 22(24), 19,814–19,822. https://doi.org/10.1007/s11356-015-5156-5
7. Mardiansyah. (2010). Organic Fertiliser: Characteristics and Application. Yogyakarta: Penerbit Andi.
8. Ovender, F. (2021). Growth response of cocoa seedlings (Theobroma cacao L.) to oil palm waste compost application. Jurnal Media Pertanian, 6(2), 57–63.
9. Parman, S. (2007). Effect of organic and inorganic fertilisers on soil and crop productivity. Jurnal Agronomi, 11(2), 89–96.
10. Radin, R., Abu Bakar, R., Ishak, C. F., Ahmad, S. H., & Tsong, L. C. (2018). Biochar–compost mixture as an amendment for improvement of polybag-growing media and oil palm seedlings at the main nursery stage. International Journal of Recycling of Organic Waste in Agriculture, 7(1), 11–23. https://doi.org/10.1007/s40093-017-0185-3
11. Sofyan, A., et al. (2019). Formulation of soil amendments to enhance their effectiveness on marginal lands. Jurnal Ilmu Tanah dan Lingkungan, 21(1), 33–40.
12. Sriharti, & Salim, T. (2010). Nutrient content of compost from various organic materials. Jurnal Teknologi Lingkungan, 11(2), 231–238.
13. Supadma, A. A., & Arthagama, I. D. M. (2008). Effect of chicken manure on compost quality. Agrotrop, 1(1), 45–52.
14. Syahfitri, M. M. (2008). Analysis of nutrient content in oil palm leaves using spectrophotometry at the Palm Oil Research Centre (PPKS), Medan. Undergraduate thesis, Universitas Sumatera Utara.
15. Trisakti, B., Mhardela, P., Husaini, T., Irvan, & Daimon, H. (2018). Production of oil palm empty fruit bunch compost for ornamental plant cultivation. IOP Conference Series: Materials Science and Engineering, 309(1), 012094. https://doi.org/10.1088/1757-899X/309/1/012094
16. Tufaila, M., et al. (2014). Application of several concentrations of chicken manure compost increases soil nitrogen. Jurnal Agrisistem, 10(2), 88–94.
17. Yuniza. (2015). Effect of decanter solid compost application in planting media on the growth of oil palm seedlings (Elaeis guineensis Jacq.) in the main nursery. Undergraduate thesis, Universitas Jambi.