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Synergistic enriched compost with biochar and fly ash for improving Ultisols in tropical acid soils

Journal of Degraded and Mining Lands Management · Vol. 13 No. 2 (2026) · hlm. 9987–9997

DOI
10.15243/jdmlm.2026.132.9987
ISSN
2502-2458, 2339-076X
Terbit
2026-04-01
Penerbit
Brawijaya University
Bahasa
eng
Lisensi
creativecommons.org/licenses/by-nc/4.0

Abstrak

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.

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  • IPB University
  • Tokyo University of Agriculture
  • Ministry of Agriculture
  • Universitas Sulawesi Barat
  • University of Darussalam Gontor
  • Pakuan University
  • The University of Tokyo
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Rekan penulisOrganisasiArtikel bersama
Dulbari DulbariAfiliasi tidak diketahui4
Dwi GuntoroIPB University4
Heni PurnamawatiIPB University3
Lutfy Ditya CahyantiUniversity of Darussalam Gontor2
Didy SopandieIPB University2
Sofyan ZamanIPB University2
Eko SulistyonoIPB University2
Yonny KoesmaryonoIPB University2
Anung WahyudiAfiliasi tidak diketahui2
Sri NurdiatiIPB University1
Agus BuonoIPB University1
Fajar Delli WihartikoPakuan University1
Sudarsono SudarsonoIPB University1
Masluki MaslukiIPB University1
Mochamad Hasjim BintoroIPB University1
Chun Lan LianThe University of Tokyo1
Yoko MineTokyo University of Agriculture1
Ken TakahataTokyo University of Agriculture1
Nobuo SugiyamaTokyo University of Agriculture1
A. SetiawanInternational Potato Center1
A RaiIPB University1
Widi AtmokoIPB University1
T. SugiartoIPB University1
Iskandar IskandarIPB University1
Heru Bagus PulunggonoIPB University1
Sri Wilarso BudiIPB University1
Welly HermanIPB University1
Erlina RahmayuniUniversitas Muhammadiyah Jakarta1

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Sumber metadata: OAI-PMH (metadata jurnal) http://jdmlm.ub.ac.id/index.php/jdmlm/oai, pertama di-harvest 9 Nov 2026, terakhir terlihat 9 Nov 2026.
Metadata asli (oai_dc) 
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	<dc:title xml:lang="en-US">Synergistic enriched compost with biochar and fly ash for improving Ultisols in tropical acid soils</dc:title>
	<dc:creator>Shintarika, Feni</dc:creator>
	<dc:creator>Agusta, Herdhata</dc:creator>
	<dc:creator>Santosa, Edi</dc:creator>
	<dc:creator>Limin, Atfritedy</dc:creator>
	<dc:creator>Angkat, Abdul Roni</dc:creator>
	<dc:creator>Kurniati, Kurniati</dc:creator>
	<dc:subject xml:lang="en-US">Ananas comosus </dc:subject>
	<dc:subject xml:lang="en-US">biomass utilization</dc:subject>
	<dc:subject xml:lang="en-US">soil ameliorant</dc:subject>
	<dc:subject xml:lang="en-US">soil fertility </dc:subject>
	<dc:subject xml:lang="en-US">waste management</dc:subject>
	<dc:description xml:lang="en-US">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.</dc:description>
	<dc:publisher xml:lang="en-US">Brawijaya University</dc:publisher>
	<dc:date>2026-04-01</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://jdmlm.ub.ac.id/index.php/jdmlm/article/view/17607</dc:identifier>
	<dc:identifier>10.15243/jdmlm.2026.132.9987</dc:identifier>
	<dc:source xml:lang="en-US">Journal of Degraded and Mining Lands Management; Vol. 13 No. 2 (2026); 9987-9997</dc:source>
	<dc:source>2502-2458</dc:source>
	<dc:source>2339-076X</dc:source>
	<dc:source>10.15243/jdmlm.2026.132</dc:source>
	<dc:language>eng</dc:language>
	<dc:relation>https://jdmlm.ub.ac.id/index.php/jdmlm/article/view/17607/2008</dc:relation>
	<dc:rights xml:lang="en-US">Copyright (c) 2026 Journal of Degraded and Mining Lands Management</dc:rights>
	<dc:rights xml:lang="en-US">https://creativecommons.org/licenses/by-nc/4.0</dc:rights>
</oai_dc:dc>