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Effects of rice husk biochar and genotype rice interaction on soil fertility and growth dynamics of upland rice in rainfed dryland

Journal of Degraded and Mining Lands Management · Vol. 13 No. 3 (2026) · hlm. 10837–10849

DOI
10.15243/jdmlm.2026.133.10837
ISSN
2502-2458, 2339-076X
Terbit
2026-07-01
Penerbit
Brawijaya University
Bahasa
eng
Lisensi
creativecommons.org/licenses/by-nc/4.0

Abstrak

Upland rice productivity in rainfed drylands of Eastern Indonesia remains constrained by severe soil degradation and suboptimal agronomic management. This study evaluated the combined effects of rice husk biochar (0, 5, 7.5, and 10 t ha-¹) and four upland rice genotypes on soil fertility improvement and growth dynamics across three physiological phases. A factorial randomized complete block design with three replications was implemented in Majene Regency, West Sulawesi. Results showed that biochar selectively improved the most degraded soil properties, increasing organic C (+13.4%), total N (+20-27%), and available phosphorus (+26.6%), while exchangeable potassium and C/N ratio remained unchanged. Soil improvements were consistent across genotypes, as no significant genotype × biochar interaction was detected. However, growth responses were strongly genotype-dependent, with significant interactions observed for plant height, tiller number (p<0.05), and crop growth rate (p<0.01). Temporal analysis identified the peak vegetative phase as the critical window for treatment differentiation. The Asseang genotype exhibited superior performance, achieving the highest plant height (115.7 cm), tiller number (21.3), and crop growth rate (9.12 g m-² day-¹). The optimal biochar dose was 7.5 t ha-¹, beyond which growth responses plateaued, highlighting the need for integrated genotype–biochar strategies for sustainable intensification.

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  • University of Brawijaya
  • Indonesia Open University
  • Universitas Muhammadiyah Gresik
  • Universitas Kadiri
  • Malikussaleh University
  • Afiliasi tidak diketahui
  • Organisasi berbeda
  • Organisasi sama
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Rekan penulisOrganisasiArtikel bersama
Sugeng PrijonoUniversity of Brawijaya4
Retno SuntariUniversity of Brawijaya3
Moch. Dawam MaghfoerAfiliasi tidak diketahui2
Mochtar Lutfi RayesUniversity of Brawijaya2
Zaenal KusumaUniversity of Brawijaya2
Syahrul KurniawanUniversity of Brawijaya2
Nurul AiniUniversity of Brawijaya2
Mudji SantosaUniversity of Brawijaya1
Patta SijaUniversity of Brawijaya1
Yogi SugitoUniversity of Brawijaya1
Didik HariyonoUniversity of Brawijaya1
Anna Satyana KaryawatiUniversity of Brawijaya1
Muhammad MuharramUniversitas Kadiri1
SudiarsoUniversity of Brawijaya1
Syamsu Ridzal Indra HadiAfiliasi tidak diketahui1
Sri Rahayu UtamiUniversity of Brawijaya1
Novandi Rizky PrasetyaUniversity of Brawijaya1
Sudarto SudartoUniversity of Brawijaya1
Istika NitaUniversity of Brawijaya1
Aditya Nugraha PutraUniversity of Brawijaya1
Reni UstiatikUniversity of Brawijaya1
Erza Aulia AdaraUniversity of Brawijaya1
Mochammad MunirUniversity of Brawijaya1
Lailatul FitriaUniversity of Brawijaya1
Luchman HakimUniversity of Brawijaya1
Karuniawan Puji WicaksonoUniversity of Brawijaya1
Ratih Nila PamungkasUniversity of Brawijaya1
Tietyk KartinatyAfiliasi tidak diketahui1
Budi PrasetyaUniversity of Brawijaya1
H HafifahMalikussaleh University1
Mochammad Dawam MaghfoerUniversity of Brawijaya1
Yulia NurainiUniversity of Brawijaya1
I IdhamAfiliasi tidak diketahui1
M J N F I A PutraUniversity of Brawijaya1
Siti MuslikahAfiliasi tidak diketahui1

Afiliasi berasal dari OpenAlex; metadata OAI-PMH jurnal tidak memuatnya. Penulis tanpa ID OpenAlex dicocokkan berdasarkan nama, sehingga dua orang bisa tergabung atau satu orang bisa terpisah.

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) 
<oai_dc:dc xmlns="http://www.openarchives.org/OAI/2.0/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/  http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
	<dc:title xml:lang="en-US">Effects of rice husk biochar and genotype rice interaction on soil fertility and growth dynamics of upland rice in rainfed dryland</dc:title>
	<dc:creator>Gamaruddin, Gamaruddin</dc:creator>
	<dc:creator>Sudiarso, Sudiarso</dc:creator>
	<dc:creator>Suryanto, Agus</dc:creator>
	<dc:creator>Soemarno, Soemarno</dc:creator>
	<dc:creator>Agustina, Rohmatin</dc:creator>
	<dc:subject xml:lang="en-US">crop growth rate</dc:subject>
	<dc:subject xml:lang="en-US">rainfed dry land</dc:subject>
	<dc:subject xml:lang="en-US">rice husk biochar</dc:subject>
	<dc:subject xml:lang="en-US">soil fertility</dc:subject>
	<dc:subject xml:lang="en-US">upland rice genotype</dc:subject>
	<dc:description xml:lang="en-US">Upland rice productivity in rainfed drylands of Eastern Indonesia remains constrained by severe soil degradation and suboptimal agronomic management. This study evaluated the combined effects of rice husk biochar (0, 5, 7.5, and 10 t ha-¹) and four upland rice genotypes on soil fertility improvement and growth dynamics across three physiological phases. A factorial randomized complete block design with three replications was implemented in Majene Regency, West Sulawesi. Results showed that biochar selectively improved the most degraded soil properties, increasing organic C (+13.4%), total N (+20-27%), and available phosphorus (+26.6%), while exchangeable potassium and C/N ratio remained unchanged. Soil improvements were consistent across genotypes, as no significant genotype × biochar interaction was detected. However, growth responses were strongly genotype-dependent, with significant interactions observed for plant height, tiller number (p&amp;lt;0.05), and crop growth rate (p&amp;lt;0.01). Temporal analysis identified the peak vegetative phase as the critical window for treatment differentiation. The Asseang genotype exhibited superior performance, achieving the highest plant height (115.7 cm), tiller number (21.3), and crop growth rate (9.12 g m-² day-¹). The optimal biochar dose was 7.5 t ha-¹, beyond which growth responses plateaued, highlighting the need for integrated genotype–biochar strategies for sustainable intensification.</dc:description>
	<dc:publisher xml:lang="en-US">Brawijaya University</dc:publisher>
	<dc:date>2026-07-01</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/17803</dc:identifier>
	<dc:identifier>10.15243/jdmlm.2026.133.10837</dc:identifier>
	<dc:source xml:lang="en-US">Journal of Degraded and Mining Lands Management; Vol. 13 No. 3 (2026); 10837-10849</dc:source>
	<dc:source>2502-2458</dc:source>
	<dc:source>2339-076X</dc:source>
	<dc:language>eng</dc:language>
	<dc:relation>https://jdmlm.ub.ac.id/index.php/jdmlm/article/view/17803/2118</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>