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Spatial assessment of soil fertility index on tropical mineral soil across land units in Padayo farming community, West Sumatra

Journal of Degraded and Mining Lands Management · Vol. 13 No. 3 (2026) · hlm. 10759–10771

DOI
10.15243/jdmlm.2026.133.10759
ISSN
2502-2458, 2339-076X
Terbit
2026-07-01
Penerbit
Brawijaya University
Bahasa
eng
Lisensi
creativecommons.org/licenses/by-nc/4.0

Abstrak

Soil fertility is one of the primary aspects determining agricultural productivity, especially in tropical mineral soils, where nutrient constraints frequently limit crop growth and yield. This study aimed to (a) assess and map the Soil Fertility Index (SFI) across different land units, (b) evaluate soil characteristics, and (c) analyze the major factors influencing soil fertility. A total of 21 soil samples from 14 land units were studied. The SFI was calculated using seven key soil chemical properties: pH, organic matter, phosphorus, potassium, calcium, magnesium, and aluminum. The results showed that soil fertility in the study area was generally low, with a mean SFI value of 21.53. Among the land units, two were classified as very low, nine as low, and three as moderate fertility. The lowest SFI (16.14) was observed in land unit pTls.2.Kc, while the highest (26.78) occurred in pTps.2.Hs. Only 34.50% of the area exhibited moderate fertility, with the remainder classified as low to very low. Principal component analysis revealed that four components accounted for 81.36% of the total variance, with the dominant factors ranked as follows: CEC>base saturation>aluminum saturation>K>Mg>Ca>Na>P>pH>soil organic carbon. High annual rainfall (5,064 mm/year) and predominantly moderately steep to steep slopes were the main agroclimatic and physical constraints limiting land use. The study highlighted that the SFI is effective in representing soil fertility status in tropical soils. The integration of suitable crops that are adapted to ecological conditions and the improvement of soil fertility based on key controlling factors are essential for utilizing the land.

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  • Andalas University
  • Yarsi University
  • IPB University
  • Politeknik Negeri Sriwijaya
  • Moscow State Agroengineering University named after V.P. Goryachkin
  • Tadulako University
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Rekan penulisOrganisasiArtikel bersama
Herviyanti HerviyantiAndalas University5
Amsar MaulanaAndalas University5
Teguh Budi PrasetyoAndalas University4
Rahmi AwalinaAndalas University4
Hasmiandy HamidAndalas University2
Dewi RezkiAndalas University2
Irwan DarfisAndalas University2
Moch AbdussalamYarsi University1
Indah Permata YudaYarsi University1
Hidrayani HidrayaniAndalas University1
Yunisman YunismanAndalas University1
Eka Candra LinaAndalas University1
Yulmira YantiAndalas University1
Trimurti HabazarAndalas University1
Miranti MirantiTadulako University1
Maswar MaswarAfiliasi tidak diketahui1
Supiandi SabihamIPB University1
Atang SutandiIPB University1
Rasti SaraswatiAfiliasi tidak diketahui1
Salma AthiyyaAndalas University1
Moli MonikasariAndalas University1
Novri NellyAndalas University1
Nguyen Phuoc SangAndalas University1
H. HidrayaniAndalas University1
Arestha Leo LitaAndalas University1
Syafrimen YasinAndalas University1
Pitri JuwitaAndalas University1
Reza Tri KurniantoAndalas University1

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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">Spatial assessment of soil fertility index on tropical mineral soil across land units in Padayo farming community, West Sumatra</dc:title>
	<dc:creator>Hijri, Nurul</dc:creator>
	<dc:creator>Reflinaldon, Reflinaldon</dc:creator>
	<dc:creator>Hermansah, Hermansah</dc:creator>
	<dc:creator>Juniarti, Juniarti</dc:creator>
	<dc:creator>Harianti, Mimien</dc:creator>
	<dc:creator>Noferita, Jelsi Trisna</dc:creator>
	<dc:creator>Khairati, Nurul</dc:creator>
	<dc:creator>Naspendra, Zuldadan</dc:creator>
	<dc:creator>Ivanovich, Vasenev Ivan</dc:creator>
	<dc:subject xml:lang="en-US">agroforestry</dc:subject>
	<dc:subject xml:lang="en-US">GIS</dc:subject>
	<dc:subject xml:lang="en-US">land unit</dc:subject>
	<dc:subject xml:lang="en-US">soil fertility index</dc:subject>
	<dc:subject xml:lang="en-US">tropical soils</dc:subject>
	<dc:description xml:lang="en-US">Soil fertility is one of the primary aspects determining agricultural productivity, especially in tropical mineral soils, where nutrient constraints frequently limit crop growth and yield. This study aimed to (a) assess and map the Soil Fertility Index (SFI) across different land units, (b) evaluate soil characteristics, and (c) analyze the major factors influencing soil fertility. A total of 21 soil samples from 14 land units were studied. The SFI was calculated using seven key soil chemical properties: pH, organic matter, phosphorus, potassium, calcium, magnesium, and aluminum. The results showed that soil fertility in the study area was generally low, with a mean SFI value of 21.53. Among the land units, two were classified as very low, nine as low, and three as moderate fertility. The lowest SFI (16.14) was observed in land unit pTls.2.Kc, while the highest (26.78) occurred in pTps.2.Hs. Only 34.50% of the area exhibited moderate fertility, with the remainder classified as low to very low. Principal component analysis revealed that four components accounted for 81.36% of the total variance, with the dominant factors ranked as follows: CEC&amp;gt;base saturation&amp;gt;aluminum saturation&amp;gt;K&amp;gt;Mg&amp;gt;Ca&amp;gt;Na&amp;gt;P&amp;gt;pH&amp;gt;soil organic carbon. High annual rainfall (5,064 mm/year) and predominantly moderately steep to steep slopes were the main agroclimatic and physical constraints limiting land use. The study highlighted that the SFI is effective in representing soil fertility status in tropical soils. The integration of suitable crops that are adapted to ecological conditions and the improvement of soil fertility based on key controlling factors are essential for utilizing the land.</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/17793</dc:identifier>
	<dc:identifier>10.15243/jdmlm.2026.133.10759</dc:identifier>
	<dc:source xml:lang="en-US">Journal of Degraded and Mining Lands Management; Vol. 13 No. 3 (2026); 10759-10771</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/17793/2104</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>