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Jurnal Lahan Suboptimal
Published by Universitas Sriwijaya
ISSN : 22526188     EISSN : 23023015     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Jurnal Lahan Suboptimal: Journal of Suboptimal Lands (JLSO) (p-ISSN 2252-6188; e-ISSN 2302-3015) publishes original research papers, literature reviews, and short communications that cover on topics relevant to suboptimal lands: freshwater swamps, tidal lowlands, peatlands, dry and dry acid lands, shaded ecosystem, ex-mined lands, saline and marine coastal wetland ecosystems. The Journal serves as a multi-disciplinary forum covering key issues in Suboptimal Lands science and technology, management, policy and ecological economics. The journal is published by Pusat Unggulan Riset Pengembangan Lahan Suboptimal (PUR-PLSO), Universitas Sriwijaya. The journal was first published on April of 2012 with twice per year in frequency on April and October.
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Articles 369 Documents
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GIS–MCDA–based land suitability analysis for agrivoltaic development on degraded peatlands in South Sumatra Wisaksono, Muaffan Alfaiz
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 15 No. 1 (2026): JLSO
Publisher : Research Center for Suboptimal Lands (PUR-PLSO), Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36706/jlso.15.1.2026.783

Abstract

Degraded peatlands in South Sumatra experience drainage driven subsidence, recurrent fires, and seasonal flooding, yet they also have reliable long term solar resources, making them strong candidates for agrivoltaics that avoids conversion of intact peat. This study aimed to map and quantify agrivoltaic land suitability on degraded peatlands using an integrated GIS and multi-criteria decision analysis workflow. Eight criteria were prepared on a 30 m UTM Zone 48S grid and normalized to a 0 to 1 benefit scale: FRP weighted fire kernel density, peat depth class as a geotechnical proxy, flood hazard index, slope, distance to roads, aspect, topographic position index, and long term global horizontal irradiance. Weights were derived with the Analytic Hierarchy Process (CR= 0.00244) and combined using Weighted Linear Combination with protected areas applied as hard constraints. Across the eligible degraded peat domain (124,007.76 ha), 53.76% (66,665.25 ha) was very suitable and 24.89% (30,867.84 ha) was moderately suitable, while 19.68% (24,408.99 ha) and 1.67% (2,065.68 ha) were unsuitable and very unsuitable. Overall, 78.65% (97,533.09 ha) of eligible land was suitable or very suitable, indicating a substantial opportunity for policy-focused agrivoltaic screening on degraded peatlands while maintaining environmental safeguards.
Agronomic evaluation of sub1-introgressed black rice lines under rainfed lowland conditions in South Sumatra Adriansyah, Fikri; Halimi, Entis Sutisna; Septiani, Septiani
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 15 No. 1 (2026): JLSO
Publisher : Research Center for Suboptimal Lands (PUR-PLSO), Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36706/jlso.15.1.2026.784

Abstract

Rice (Oryza sativa L.) is a major staple crop, and black rice is increasingly valued for its nutritional and economic importance. In South Sumatra, Indonesia, rainfed lowland swamp ecosystems offer substantial potential for rice cultivation, but productivity is constrained by alternating flooding and drought stress. The introgression of the Sub1 gene provides tolerance to submergence and supports the development of adaptive black rice cultivars. This study aimed to evaluate the agronomic performance of six black rice lines carrying the Sub1 gene under rainfed lowland conditions. The experiment was conducted using a randomized complete block design with three replications. Agronomic traits, including phenology, tillering, yield components, and grain yield, were recorded and analyzed using analysis of variance, correlation, and principal component analysis (PCA). Significant differences among genotypes were observed for most agronomic traits, indicating substantial genetic variability. Regita5 and Febry1 showed superior performance, producing the highest grain yields of 3.53 and 3.37 t/ha, respectively, supported by higher numbers of productive tillers and filled grains per panicle. Correlation and PCA results revealed that grain yield was primarily influenced by tillering capacity and grain production traits, whereas 100-grain weight and phenological traits contributed weakly or negatively. These findings demonstrate that black rice lines carrying the Sub1 gene, particularly Regita5 and Febry1, possess strong agronomic potential for cultivation and as breeding materials in stress-prone swamp ecosystems, contributing to sustainable rice production under climate variability.
Distribution of physicochemical in the coastal waters of Sembilang National Park, Banyuasin Regency, South Sumatra, Indonesia Agustriani, Fitri; Fauziyah , Fauziyah; Nurjualisti Ningsih, Ellis; Pratiwi Febrianti, Amanda Astri
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 15 No. 1 (2026): JLSO
Publisher : Research Center for Suboptimal Lands (PUR-PLSO), Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36706/jlso.15.1.2026.788

Abstract

Sembilang National Park (SNP) is a large mangrove area and plays an important role in Indonesia, where it has important economic value, especially fisheries resources, a route for protected types of marine biota, and a potential fishing area. Good water quality conditions can optimize the function of the SNP area as an ecosystem for various existing biological resources. The aimed of study was to analyze the relationship between physical and chemical parameters in the inner and outer zones of the mangrove ecosystem. Data was collected directly in situ such as DO, pH, salinity, nitrate, and phosphate. Analysis of the distribution of physical and chemical water data was using Surfer 9 software. Analysis of the relationship between physical and chemical parameters using Principal Component Analysis (PCA). The results showed that the water quality in SNP was still in good condition for biota growth, however, nitrate and phosphate showed high values at 4.32-6.52 mg/land 0.12-0.19 mg/L. Principal Component Analysis (PCA) showed that the estuary zone was characterized by nitrate and phosphate parameters, while the outer estuary zone was characterized by DO, pH, and salinity parameters. The dynamics of the physicochemical parameters of the waters in the SNP area are generally in good condition, except for nitrate and phosphate, which are indicated to cause eutrophication.
Leaf blight and stem rot disease infection on eucalyptus (Eucalyptus pellita) Safitri, Ayu; Apriliansyah, Gusti; Harvianti, Yuniar
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 15 No. 1 (2026): JLSO
Publisher : Research Center for Suboptimal Lands (PUR-PLSO), Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36706/jlso.15.1.2026.792

Abstract

Eucalyptus pellita is an important plant for the pulp and paper industry. During its growth and development process, there are factors that inhibit Eucalyptus, namely stem rot and leaf blight caused by Ceratocystis and Cylindrocladium. The purpose of this study was to determine the incidence and intensity of leaf blight and stem rot diseases caused by Ceratocystis and Cylindrocladium, as well as to identify the ecological conditions and disease distribution in the Baung Central Nursery and Sungai Beyuku Nursery areas. The observation method used was direct field observation with purposive sampling and interviews with representatives from the nursery division. Symptoms of stem rot caused by Ceratocystis are indicated by streaks or lines that appear as pale brown to blackish patches on the sapwood, which result in weakened and broken stems. Symptoms of leaf blight caused Cylindrocladium include round or oval dark brown to blackish leaf spots, which in advanced stages spread to the underside of the leaf and turn black. This study concludes that disease incidence in Baung Central Nursery is dominated by leaf blight caused Ceratocystis, while in Sungai Beyuku Nursery it is dominated by leaf blight caused by Cylindrocladium.
Acidic soil amelioration strategies for improving soil fertility: a systematic literature review of techniques, materials, and mechanisms Delfianza, Ezra; Khoerunnisa, Fitri
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 15 No. 1 (2026): JLSO
Publisher : Research Center for Suboptimal Lands (PUR-PLSO), Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36706/jlso.15.1.2026.799

Abstract

Declining agricultural productivity in tropical and subtropical regions is largely due to high soil acidity, which inhibits nutrient availability and increases the solubility of toxic elements such as aluminum and iron. Acidic soil is one of the main constraints in agricultural systems, characterized by low soil pH and an imbalance of essential nutrients for plants. This study aimed to systematically review various approaches to acid soil amelioration, focusing on the mechanisms and materials used. The method used in this study was a Systematic Literature Review (SLR), through an analysis of 38 reputable scientific articles published between 2021 until 2025 and indexed in the Scopus database. The article selection process was based on inclusion criteria specifically related to the results of acidic soil amelioration research. The synthesis results show that acidic soil amelioration approaches could be grouped into several main categories, namely liming-based, biochar-based, biochar and organic-based, organic (non-biochar)-based, organomineral-based, and industrial waste-based. Although research on acid soil amelioration has developed rapidly, there was still considerable variation in the selection of materials, composition, and application methods used. Overall, this systematic literature review provides a structured overview of the mechanisms and materials used in acid soil amelioration.
Modifikasi Aplikasi Unsur Hara untuk Perbaikan Vigorasi Bibit Padi dalam Cekaman Terendam Rujito Agus Suwignyo; Andi Wijaya; Hesty Sihombing; Gribaldi Gribaldi
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 1 No. 1 (2012)
Publisher : Research Center for Suboptimal Lands (PUR-PLSO), Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33230/JLSO.1.1.2012.2

Abstract

Suwignyo et al., 2012. Modification of Nutrient Application for the Improvement of Rice Seed Vigor in Submergence Threat. JLSO 1(1):1-11.In fresh water swamp rice cultivation, farmers  face the problem of high water levels during the early stage of plant growth, causing risky situation for seed. This study was aimed to obtain a method to increase rice seedling tolerance to submergence stress through improving fertilizer application  rice variety. The experimental design used was factorial completely randomized design with three replications. The factor consists of rice varieties (Inpara 3, Inpara 4, Inpara 5, BR 11 sub-1, IR 42, Rutti, Uffa, and Serendah Kuning), and fertilization treatment (NPK at planting without submergence; NPK with N at 7 days prior to submergence; NPK with N at one day after submergence; NPK + manure with N at 7 days prior to submergence; NPK + Manure + Si + Zn with N at 7 days prior to submergence; and NPK + Manure + Si + Zn with N at one day after submergence). The results showed that application of the proper nutrients could increase rice seedling vigor under submergence stress. At nursery stage, application of NPK, Manure, Si and Zn, with Nitrogen  after submergence would improve seedling vigor after recovery period. Submergence stress tolerant varieties showed higher ability to survive under submergence stress, and Inpara 4, Inpara 5, and BR11 Sub-1 performed better than Inpara 3. Serendah Kuning showed  better response to submergence stress than other local varieties. 
Ameliorasi Tanah Sulfat Masam Potensial untuk Budidaya Tanaman Bawang Merah (Allium ascalonicum L.) Yenni Yenni
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 1 No. 1 (2012)
Publisher : Research Center for Suboptimal Lands (PUR-PLSO), Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33230/JLSO.1.1.2012.3

Abstract

Yenni, 2012. Amelioration of Potential Sulphidic Soil for Onion Cultivation (Allium ascalonicum L.). JLSO 1(1): 40-49.Lowlands contains sulphidic soil which is  potential for crop production, yet acidic and lack of nutrients which inhibits plant growth. This study was aimed to identify the effects of liming of sulphate  soil on the growth of Onion (Allium ascalonicum L.). This study was carried out using factorial completely randomized design with six replicates on sulphate soil. The experiments were performed on poly bag (5 kg soil/poly bag/plant in acid sulphate soil. The  first factor was soil pH 4,05 (S1) and 5,02 (S2). The second factor was lime dosage(K0), 1 ton/ha (K1), 2 ton/ha (K2), and 3 ton/ha (K3). The plants were harvested after two month. Parameters measured were the growth of onion such as plant height, leaf number, bulb number, root length, fresh weight and dry weight of tuber. Secondary metabolite content of tuber was determined using gas chromatography. Data obtained werewas analyzed using ANOVAs, followed by Duncan Multiple Range Test (DMRT) with 5% significant level. Data analysis revealed that the combination of soil pH and lime dosage  has  significant effect on growth and yield of onion. Based on GC analysis, two tons/ha liming in sulphate soil gave the highest secondary metabolite contents. 
Pengaruh Perendaman dan Pemupukan N terhadap Pertumbuhan dan Produksi Padi Toleran Rendaman Ikhwani Ikhwani
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 1 No. 1 (2012)
Publisher : Research Center for Suboptimal Lands (PUR-PLSO), Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33230/JLSO.1.1.2012.4

Abstract

Ikhwani, 2012. The Effect of Submergence and N fertilizer Application on Plant Growth and Production of  Submerged Tolerant Rice Variety. JLSO 1(1):12-21.This study aimed at analyzing the effect of submergence and N fertilizer application on the plant growth and production of submergence tolerant rice variety. Problems and constrains of  rice production on flood prone and flash flood lowlandbecoming more frequents and more intens, causing submergence of the whole parts of rice crops for certain periods. The experiment was conducted to determine the effect of submergence and N fertilizer application on the growth of two treatment factors using block randomized design  with submergence tolerant variety Inpara 4 and 5.   An experiment was conducted in the greenhouse at Muara Experimental Station, Bogor in 2009. The treatments  consistedof three replications. The first factor was submergence rice variety Inpara 4 and 5 and the second factor was N management application, whereas (1) 200 kg Urea/ha, (2) 300 kg Urea/ha;  (3) 300 kg Ponska/ha + 100 kg Urea/ha; (4) 400 kg Ponska/ha (2x); (5) Briquette Urea  (300 kg Urea/ha) dan (6) 300 kg Urea/ha  +  Silikat (400 kg SiPPadi HS/ha).  Result of the experiment showed that   submergence for 14 to 24 DAP (10 days) on submergence tolerant rice variety combined with Briquette Urea (300 kg urea/ha  wrapped in strawpaper)  has increased the percentage of tiller number up to 98,9 percent , increased the highest total grain weight  for submergence tolerant rice  up to 41,2 gr per pot and increased in the proportion of  wet leave weight growth rate for  submersion treatment up to 1,4g per pot than that  without submergence. 
Karakter Agronomi dan Toleransi Varietas Cabai Merah Akibat Genangan pada Fase Generatif Susilawati Susilawati; Rujito Agus Suwignyo; Munandar Munandar; Mery Hasmeda
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 1 No. 1 (2012)
Publisher : Research Center for Suboptimal Lands (PUR-PLSO), Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33230/JLSO.1.1.2012.5

Abstract

Susilawati et al., 2012. Agronomic Characteristics and Tolerance of Red Chili Varieties under Water Logging Stress during Generative Phases. JLSO 1(1):22-30.The research objective was  to evaluate the responses of growth and tolerance of red chilli under waterlogging stress during generative phases. Experiments were conducted in village   Alang-alang Lebar Palembang, South Sumatra, from April  to November 2010. Experimental design used was split plot with three replications. The main plot was waterlogging for 1, 2, 3 and 4 days. The subplot was  red chili varieties consisted of Kiyo F1, Bravo F1, Taro F1, Lembang 1, Laris, Riawan, Mario and Kusuma. The results showed that the maximum period of waterlogging  of Red chilli plants in the generative phase was three days. Increased duration of waterloggingduring the generative phase significantly decreased the ability of plants to survive, the number of live plants,  plant height and the number of branches. Based on the agronomic characteristics found in the study, the variety that is the most  tolerant to  waterlogging  during the generative phase was Kiyo F1. 
Pemanfaatan Berbagai Jenis Pupuk Hayati pada Budidaya Tanaman Jagung(Zea mays. L) Efisien Hara di Lahan Kering Marginal Yopie Moelyohadi; M. Umar Harun; Renih Hayati; Nuni Gofar
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 1 No. 1 (2012)
Publisher : Research Center for Suboptimal Lands (PUR-PLSO), Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33230/JLSO.1.1.2012.6

Abstract

Moelyohadi et al., 2012. The Use of  Various Types of Biofertilizers on Cultivation of  Nutrient Efficient Corn Genotypes(Zea mays L.  in Marginal Dry Land. JLSO 1(1):31-39.The study aimed at  obtaining nutrient efficient corn genotypes that give the best response to various types of biological fertilizers at low-level doses of chemical fertilizer in marginal drylands. This study was conducted in the field trials of Agro Techno Park (ATP), the Ministry of Research and Technology, South Sumatra from May to September 2011. The experimental design used was SplitPlotdesign  with three replications. The main plot treatments consisted of: (H0): without biofertilizer, (H1): biofertilizer:-mycorrhizae and (H2): BPF biological fertilizers. Subplot treatments, consisting of three corn genotypes for the selection of efficient nutrient properties, are genotypes  B-41 (G1), L-164 (G2), S-194 (G3)  and onehybrid variety:BISI-816 (G4) as agenotypecomparator. Alltreatmentunitswere givenlow dosesof chemicalfertilizerthat is 50% of theATPstandarddose(200kgUrea, SP-36 50kgand 25kgKClha-1).  The results showed that mycorrhizal fertilizer produced the highest corn production, which is 6.08 ton dry seed / acre and genotype B-41 shows a more adaptive growth in marginal dry land with a production  of 7.27 tons of dry  seed /acre  and the combined treatment of mycorrhizal fertilizer and genotype B-41 gave the highest production  of 8.57 tons of dry seed / acre 

Page 34 of 37 | Total Record : 369

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