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All Journal Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Buletin Agrohorti Jurnal Ilmu Pertanian Indonesia Jurnal Ilmu Pertanian International Journal of Science and Engineering (IJSE) Sains Tanah JURNAL ILMU PERTANIAN Journal of Degraded and Mining Lands Management Jurnal Sumberdaya Alam dan Lingkungan AGRIVITA, Journal of Agricultural Science Indonesian Journal of Physics and Nuclear Applications Jurnal Agroqua: Media Informasi Agronomi dan Budidaya Perairan Jurnal Penelitian Kelapa Sawit Journal of Tropical Crop Science JURNAL PERTANIAN jurnal Ilmu Pertanian (Agricultural Science) Perbal: Jurnal Pertanian Berkelanjutan Journal of Agrosociology and Sustainability
Herdhata Agusta
Departement Of Agronomy And Horticulture, Faculty Of Agriculture, IPB University (Bogor Agricultural University), Jl. Meranti, Kampus IPB Dramaga, Bogor 16680, INDONESIA
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemistry Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Energy Engineering Environmental Science Medicine & Pharmacology Physics Veterinary

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Synergistic enriched compost with biochar and fly ash for improving Ultisols in tropical acid soils Shintarika, Feni; Agusta, Herdhata; Santosa, Edi; Limin, Atfritedy; Angkat, Abdul Roni; Kurniati, Kurniati
Journal of Degraded and Mining Lands Management Vol. 13 No. 2 (2026)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2026.132.9987

Abstract

Ultisols are characterized by low pH, low alkaline saturation, low cation exchange capacity, and high levels of soluble Al and Fe. Compost is usually applied to increase soil fertility, but its effect is only temporary in tropical conditions because organic matter decomposes quickly. Biochar and fly ash-enriched compost have been proposed as a synergistic approach to improve the chemical properties of Ultisols. This study evaluated the effect of compost enriched with biochar and fly ash on soil chemical dynamics over 16 months in pineapple plantations in Lampung, using a randomized block design with three treatments: compost enriched at the initial stage, compost alone as a control, and compost enriched at the end of composting. The results showed that biochar and fly ash increased soil pH during the initial phase by supplying alkaline cations. Fluctuations occurred during the intermediate stage due to the decomposition of organic matter and nitrogen transformation: organic C and total N increase, influenced by microbial activity and environmental conditions. Phosphorus followed a mineralization-immobilization-remobilization pattern, with late-stage enrichment producing P. Potassium, calcium, and magnesium initially increased but later decreased, likely due to leaching. Early-stage enrichment provided a more stable release of alkaline cations. Fe, Mn, Cu, and Zn show fluctuations in the enriched treatment. The application of biochar and fly ash-enriched compost synergistically with early-stage enrichment effectively enhances the chemical properties of Ultisol.
Co-Authors Abdul Roni Angkat Ade Wachjar AHMAD JUNAEDI Ahmad Zamzami Aiyen Tjoa Al Haq, Muhammad Izzuddin Al Hayah, Cauny Nur Alma Wahyuningrum Andi Besse Poleuleng Anung Wahyudi Ayulia, Liska Bintoro Djoefrie , Mochamad Hasjim Bintoro Joefrie Dewi Riniarti Diaguna, Ridwan Djoefrie, M.H.B. Dulbari, Dulbari Dwi Asmono Dwi Asmono Dwi Guntoro Edi Santosa Eka Maulidiya, Sherly Eko Sulistyono Fajar Ilhamy, Muhammad Rizki Feni Shintarika Fredinan Yulianda Gani Tarigan, Abdul Gani Gatot Pramuhadi Hariyadi Ilyas Marzuki Imam Santoso Irzal Effendi Kurniati Kurniati Limin, Atfritedy M Juhri Al Karomah Masluki, Masluki Melik Thiara Dikari Memen Surahman Mercy Bientri Yunindanova Mercy Bientri Yunindanova Miftahurridho, Muhammad Toha Muhamad Rafiansyah Siregar, Valdi Muhammad Hasjim Bintoro Djoefrie Hasjim Bintoro Djoefrie Nani Panca Dewi Manu Hara Karti Putri, Anita Hazimah Qadir, Abdul Risa Wentasari Rosita Dewi S Siswanto Sandra A. Aziz Santosa , Edi Sari, Anis Widia Sidiq, Egi Nur Muhamad Sofyan Zaman Sridanti, Irma Lisa Stefano, Indra Mario Sudarsono Sudirman Yahya Sudoyo, Bobot Sudradjat Sudradjat Sudradjat Suwarto Suwarto Syaiful Anwar Tambunan, Elsass Riela TRI ASTUTI Ulfha Junita ummah, kuntum khaira Waraqi, Bismo Yan Sukmawan, Yan Yonny Koesmaryono Zadzali, Helmi