Jurnal Lahan Suboptimal
Published by Universitas Sriwijaya
ISSN : 22526188     EISSN : 23023015
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.
Articles 180 Documents
Analisis Transmisi Harga Beras di Kabupaten Ogan Komering Ilir Provinsi Sumatera Selatan Lastinawati, Endang; Mulyana, Andy; Zahri, Imron; Sriati, Sriati
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol 7, No 1 (2018): JLSO
Publisher : Pusat Unggulan Riset Pengembangan Lahan Suboptimal (PUR-PLSO) Universitas Sriwijaya

Show Abstract | Original Source | Check in Google Scholar | Full PDF (595.285 KB) | DOI: 10.33230/JLSO.7.1.2018.343

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Lastinawati et al, 2018. Price Transmission Analysis of Rice in Ogan Komering Ilir District, South Sumatra Province. JLSO 7(1):43-49. Price transmission is one indicator of whether or not a marketing system is efficient and also can explain the distribution of welfare between producers and consumers in the marketing channel. This study aimed to analyze the transmission of rice prices which are the basic needs of the Indonesian people, both the price transmission of consumer to farmers, and vice versa, with two groups of rice based on their quality, namely premium and medium rice. This research conducted at Ogan Komering Ilir District, South Sumatra Province. Price transmission was analyzed using price transmission elasticity, using weekly rice price series data from the second week of March 2016 to the second week of September 2018. The results showed that the transmission of consumer prices of premium and medium rice to the price of harvested dry grain at farmer level had an elasticity value not equal to one, and vice versa. This showed that the rice market in Ogan Komering Ilir Regency was in elastic and less efficient, because prices were transmitted asymmetrically.
Pemetaan Status Unsur Hara Fosfor Perkebunan Kelapa Sawit Rakyat di Kelurahan Babat Sumatera Selatan Iswahyudi, Bagus; Bakri, Bakri
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol 8, No 1 (2019): JLSO
Publisher : Pusat Unggulan Riset Pengembangan Lahan Suboptimal (PUR-PLSO) Universitas Sriwijaya

Show Abstract | Original Source | Check in Google Scholar | DOI: 10.33230/JLSO.8.1.2019.408

Abstract

Iswahyudi et al, 2019. Oil Palm Plantation’s Phosporous Mineral Mapping on Babat District South Sumatera. JLSO 8(1):77-85. Soil nutrient status mapping was not initiated which lead to inefficiency in fertilization. Fertilizition without nutrient analysis could lead to nutrient deficiency or toxicity of nutrint. The Purpose of this research was to identify, map the nutrient status and fertilization recomendation of phosporous nutrient status in public oil palm plantation at Babat Village Babat Toman Districts Musi Banyuasin District South Sumatera Province. This research used a detailed survey methode with grid system for 16 sample which represent 16 ha and 60 cm depth of soil drilling. Phosporous nutrient status at research location ranged from 4,81 ppm to 21,86 ppm. 7 ha contained 8-20 ppm available phosphorous ot classified into medium, 6 ha contained < 8 ppm available phosphorous or classified into low and 3 h contained >20 ppm available phosporous or classified into high. Soil reaction (pH) of the research field was 5,0 and 5,5 which classify the soil into acid soil. Fertilization implemented to increase the nutrient status until medium (15 ppm) which resulted in SP-36 doses was 346,22 kg/ha for low nutrient status and 139,33 kg/ha for medium nutrient status.
Pertumbuhan dan Produksi Tiga Varietas Unggul di Lahan Rawa Lebak Desa Jambu Ilir Kabupaten Ogan Komering Ilir, Sumatera Selatan Suparwoto, Suparwoto
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol 8, No 1 (2019): JLSO
Publisher : Pusat Unggulan Riset Pengembangan Lahan Suboptimal (PUR-PLSO) Universitas Sriwijaya

Show Abstract | Original Source | Check in Google Scholar | DOI: 10.33230/JLSO.8.1.2019.370

Abstract

Suparwoto et al, 2019. The Growth and Production Three Rice Superior Varieties in Swampy Lands  at the Jambu Ilir Village, Ogan Komering Ilir District. JLSO 8(1):39-46.The assessment was carried out in Jambu Ilir Village, Tanjung Lubuk District, Ogan Komering Ilir Regency, South Sumatra, starting in the dry season of 2018. Varieties exhibited were 2 superior varieties  and 1 comparative variety, Mekongga. The aim of the study was to obtain information on the growth and production of Inpari 30 and Inpara 8 varieties that were adaptive and had high production on lebak lands. The study was designed by observation method, spacing of legowo 2: 1 (50x25x12.5 cm), seedling age 35 days after seedling, 2-3 seeds / holes. The dosage of fertilizer used is 150 kg Urea, 100 kg SP-36 and 100 kg KCl / ha. The variables observed were: plant height, number of productive tillers, number of grain per panicle, number of filled grains per panicle, and grain yield per ha. The data obtained was arranged in tabulation and analyzed by statistical tests, namely the test of the mean value (test-t). The results showed that the plant height of the varieties exhibited was classified as low to moderate with the number of productive tillers classified as moderate. Inpari 30, and Inpara 8 can adapt well in lebak lands with a production of 5.1-5.3 tons GKP / ha higher than Mekongga as a comparison variety and are highly favored by farmers.
Solubilisasi Fosfat Anorganik oleh Burkholderia spp. Pada Rizosfer Kelapa Sawit (Elaeis guineensis Jacq.) di Tanah Mineral Masam Nugraha, Gregorius Baskara Aji; Wandri, Ruli; Asmono, Dwi
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol 8, No 1 (2019): JLSO
Publisher : Pusat Unggulan Riset Pengembangan Lahan Suboptimal (PUR-PLSO) Universitas Sriwijaya

Show Abstract | Original Source | Check in Google Scholar | DOI: 10.33230/JLSO.8.1.2019.404

Abstract

Nugraha et al, 2019. Solubilization of Inorganic Phospate by Burkholderia spp. Associated with Oil Palm Rhizosphere in Mineral Acid Soil. JSLO 8(1):86-93.Phosphate Solubilizing Bacteria (PSB) play important role by enhancing phosphate availability bounded with Al3+ or  Fe3+ in acidic soils to oil palm plants through release the inorganic phosphate by enzyme or organic acids solubilization. The aims of this study were to isolate of PSB from oil palm rhizosphere and to conduct a comparative analysis of the solubility inorganic phosphates source by selected PSB. The ability of 15 selected PSB to grow and solubilize aluminum phosphate (AlPO4) and iron phosphate (FePO4) was examined and identified. The highest phospate solubilising efficiency showed K3.1 isolate with phosphate solubilization index 3.2 on NBRIP media. Quantitative analysis revealed that isolate K3.1 solubilized 53.52 mg/mL phosphate in 5 days after being inoculated in AlPO4 containing liquid medium, isolate A4 solubilized 63.45 mg/mL phosphate in 5 days after being inoculated in FePO4 containing liquid medium accompanied by a decrease in pH of the growth medium. Based on the 16s rRNA gene sequence analysis, isolate K3.1 and A.4 were closely related to Burkholderia arboris and Burkholderia gladioli. This potential isolates can be used in order to make oil palm crops more sustainable especially on marginal soil with low pH and less dependent on inorganic P fertilizers. 
Pemberian Biochar Jengkok Tembakau Untuk Meningkatkan Hasil Ubijalar Pada Lahan Kering Sub-Optimal Indawan, Edyson; Lestari, Sri Umi; Thiasari, Nurita
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol 8, No 1 (2019): JLSO
Publisher : Pusat Unggulan Riset Pengembangan Lahan Suboptimal (PUR-PLSO) Universitas Sriwijaya

Show Abstract | Original Source | Check in Google Scholar | DOI: 10.33230/JLSO.8.1.2019.284

Abstract

Indawan et al, 2019. Increasing Sweet Potato Yield on Biochar Amendment Application on Sub-Optimal Dry Land. JLSO 8(1):47-56. Biochar is a soil amendment that can improve soil fertility, increase crop yield and can reduce contamination. This study aim to evaluate the sweet potato response to biochar application from tobacco industry waste. The combination of cultivar and dose of biochar implemented using a Split Plot Experiment Design with three replications. The cultivars placed 0n main plots and biochar doses on sub-plots. The thirteen cultivars covering 7 varieties (Kuningan Putih, Beta 1, Beta 2, Kuningan Merah, Sari, Boko, and Jago) plus six accession from Unitri and Brawijaya University collections (BIS OP-61-OP-22 , 73-6 / 2, 73 OP-8, BIS OP-61, 73 OP-5, and BIS OP-61-♀-29). The biochar dose used was B0 (0 t / ha) and B1 (5 t / ha). The experimental unit is measuring 5 m x 0.6 m, consisting of single row and planted with a spacing of 25 cm in row or 20 cuttings/row). The storage root numbers, storage root weight, % dry matter, Harvest Index (HI) and yields estimation are ditermined. The results showed that sweet potato cultivars gave a significant response to biochar application on fresh storage root weight, dry storage root weight, biomass dry weight, HI and storage root yields, but no interaction between cultivars and biochar doses. Storage root yield range of 8 - 21 t / ha without biochar and 10 - 23 t / ha with biochar 5 t / ha, except for Beta 1 and Boko. The use of biochar of 5 t / ha can increase storage root yields ranging from 8 - 45%.
Pengaruh Penambahan Pupuk Organik Cair terhadap Kesuburan Tanah dan Kualitas Air pada Kolam Tanah Rawa Pasang Surut di KTM Telang Banyuasin Dewi, Santa; Jubaedah, Dade; Wijayanti, Marini; Anggraini, Septika Putri
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol 8, No 1 (2019): JLSO
Publisher : Pusat Unggulan Riset Pengembangan Lahan Suboptimal (PUR-PLSO) Universitas Sriwijaya

Show Abstract | Original Source | Check in Google Scholar | DOI: 10.33230/JLSO.8.1.2019.390

Abstract

Dewi et al, 2019. The Effect of Addition of Liquid Fertilizer on Soil Fertility and Water Quality in Pond at Tidal Lowland. JSLO 8(1):The soil of tidal lowland contains a lot of sulfidic material, low soil pH (> 3.50), high toxic substances and low soil fertility. This study aimed to compare the effect of adding liquid fertilizer to soil ponds is made of afkir fruit on tidal swamp land. The research used three treatments without replication. The treatments were pond without liquid fertilizer/control (P0), addition of liquid fertilizer concentration 0.131 L.m-3 (P1) and 0.261 L.m-3 (P2). The parameter were water quality, soil fertility, abundance and composition of plankton, and plankton that were potensial as natural feed of fish. The data obtained processed using descriptive analysis. The result of this research indicated that the addition of liquid fertilizer in KTM Telang Banyuasin gave positive changes to water quality and soil fertility parameters such as pH, secchi depth transparency, ammonia, orthophosphate, iron, N-total, P-available, K-dd, C-organic and pyrite, and has a negative effect on dissolved oxygen.. The treatment P2 resulted in highest plankton abundance value of phytoplankton (7974 ind.L-1) and zooplankton (192 ind.L-1), the fertility of pond was on moderate level (mesotrophic), 100% of phytoplankton natural food potency and 71.4% of zooplankton natural food potency.  
Analisis Kandungan N-Nitrogen (Amonia, Nitrit, Nitrat) dan Fosfat di Perairan Teluk Pandan Provinsi Lampung Iklima AS, Reza; Diansyah, Gusti; Agussalim, Andi; Mulia, Citra
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol 8, No 1 (2019): JLSO
Publisher : Pusat Unggulan Riset Pengembangan Lahan Suboptimal (PUR-PLSO) Universitas Sriwijaya

Show Abstract | Original Source | Check in Google Scholar | DOI: 10.33230/JLSO.8.1.2019.377

Abstract

Iklima AS et al, 2019. Analysis of N-Nitrogen (Ammonia, Nitrate, and Nitric) and Phosphate at Teluk Pandan’s water territorial, Lampung Province. JLSO 8(1):57-66.Teluk Pandan’s water territorial was known to aquaculture activity such as prawn, pearl oyster and cage culture by community that lived in the area. It activities could makes water quality to be polluted.This research was purposed to known the content of nutrient (Ammonia, Nitrate, Nitric, and Phosphate) and to studied nutrient that related to other’s water quality parametric at Teluk Pandan water territorial. Sampling was determinate by 15station using purposive sampling method. Data analysis was used to studied relation between water quality’s parametric using Principal Component Analysis (PCA). Water sampling was taken at surface using water sampler. It was analyze in Oceanography and Instrumentation Laboratory, Department of Marine Science, Universitas Sriwijaya. Result of this research showing that rate of content nutrient at Teluk Pandan’s water territory ranging from 0.0007-0.0087 mg/L NO3-N, nitric ranging from 0.0001-0.0062 mg/L NO2-N, and phosphate ranging form 0,0012 – 0,0091 mg/L PO4-P. Based on result Teluk Pandan’s water territory still can be used for water’s ecosystem. Result using PCA method showing that correlation between parametric are directly proportional and inversely. Correlation that directly proportional showing by parametric group quadrant I (Temperature, Salinity, Velocity, and Abundance of Phytoplankton), quadrant II (DO, pH and nitrate) and quadrant III (Ammonia, nitric and phosphate). Inversely showing by parametric group quadrant I to parametric group quadrant III.
Uji Toksisitas Surfaktan Linear Alkilbenzene Sulfonate (LAS) Histologi Insang Dan Hati Benih Ikan Kerapu Bebek (Cromileptes altivelis) Kristianti, Devi; Paramitha, Resty; Agustriani, Fitri; Diansyah, Gusti
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol 8, No 1 (2019): JLSO
Publisher : Pusat Unggulan Riset Pengembangan Lahan Suboptimal (PUR-PLSO) Universitas Sriwijaya

Show Abstract | Original Source | Check in Google Scholar | DOI: 10.33230/JLSO.8.1.2019.415

Abstract

Kristianti et al, 2019. Toxicity of Linear Alkilbenzene Sulfonate (LAS) Surfactant Gills and Liver Histology of Humpback Grouper Seed (Cromileptes Altivelis). JLSO 8(1):107-116.LAS is surfactant that is most commonly used because this surfactant is the main cleaning substance contained in detergent. Waste of detergent can give side effects in the tissue of organisms, especially on the gills and liver of fish. The aims of this research were to analyze the toxic effects arised from LAS surfactant to the survival of fish seed experiment with different concentrations, to determine levels of LAS surfactant that are capable to be tolerated and to analyze the gills and liver damage arising from LAS surfactant to fish seed experiment. The test of LAS surfactant toxicity on fish seed experiment was conducted using the laboratory of experimental method, while the testing of gills and liver histology of fish seed experiment with paraffin method and Hematoxylin Eosin (HE) staining. The results showed that LAS surfactant gave toxic effects on Humpback Grouper Seed (Cromileptes altivelis) and gave effect such damage to the gills and liver histology. Toxicity and tissue damage rose as the increase of LAS surfactant concentration. LAS surfactant levels were able to be tolerated by Humpback Grouper Seed test not more than 0,253 mg/l.
Populasi Serangga Hama dan Artropoda Predator pada Padi Rawa Lebak Sumatera Selatan yang Diaplikasikan Bioinsektisida dari Beauveria bassiana dan Insektisida Sintetik Hanif, Khoirul Ikhsanudin; Herlinda, Siti; Irsan, Chandra; Karenina, Tili; Anggraini, Erise; Suwandi, Suwandi; Susilawati, Susilawati
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol 8, No 1 (2019): JLSO
Publisher : Pusat Unggulan Riset Pengembangan Lahan Suboptimal (PUR-PLSO) Universitas Sriwijaya

Show Abstract | Original Source | Check in Google Scholar | DOI: 10.33230/JLSO.8.1.2019.378

Abstract

Hanif et al, 2019. Population of Pest Insects and Predatory Arthropods Inhabiting Freshwater Swamp Rice of South Sumatra Treated with Bioinsectide of Beauveria bassiana and a Synthetic Insecticide. JLSO (8)1:31-38.Entomopathogenic fungi, Beauveria bassiana, could  kill various species of insect pests, but  their impact on predatory arthropods needs to be studied. The aim of this study was to compare population of pest insects and predatory arthropods inhabiting rice sprayed with bioinsecticide of B. bassiana and conventional rice field using a synthetic insecticides. Bioinsecticide was made from conidia of B. bassiana and sprayed on rice canopy. The plot of conventional farmers was sprayed with synthetic insecticides made from Abamektrin. The results showed that the application of bioinsecticide of B. bassiana was not proven to reduce the pest insect population. The abundance of natural enemies of pest insects, such as  spiders and predatory insects was also more abundant in plots sprayed with  bioinsecticide than conventional plots that used synthetic insecticide. The synthetic insecticides have been shown to reduce the abundance of predatory insects and spiders. Bioinsecticides containing carrier of  liquid compost were proven to increase the growth and development of rice, which was an increase in the number of rice tillers per clump in plots applied by bioinsecticide. Thus, B. bassiana of bioinsecticide with liquid compost carrier material was safer and could maintain the abundance of predatory arthropods and increased rice growth.
Sifat Fisikokimia Zat Pewarna dari Bunga Eceng Gondok (Eichhornia crassipes) yang Diekstrak dengan Metode Microwave Asissted Extraction (MAE) Syafutri, Merynda Indriyani; Pratama, Filli; Yanda, Gading Putra
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol 8, No 1 (2019): JLSO
Publisher : Pusat Unggulan Riset Pengembangan Lahan Suboptimal (PUR-PLSO) Universitas Sriwijaya

Show Abstract | Original Source | Check in Google Scholar | DOI: 10.33230/JLSO.8.1.2019.417

Abstract

Syafutri et al, 2019. Physicochemical Properties of Colorant from Water Hyacinth Flower (Eichhornia crassipes) Extracted by Microwave Assisted Extraction (MAE) Method. JLSO 8(1):94-106.The objective of this research was to determine the effect of oven microwave power and extraction time on color intensity, anthocyanin stability, and antioxidant activity of colorant from water hyacinth flower (Eichhornia crassipes) extracted by microwave assisted extraction (MAE) method. The research was conducted at Agricultural Product Chemical Laboratory, Agricultural Technology Department, Faculty of Agriculture, Sriwijaya University. The experiment used a Factorial Completely Randomized Design with two factors and each treatment was repeated three times.  The first factor was oven microwave power (100 watts and 300 watts) and the second factor was extraction time in oven microwave (1 minute, 2 minutes, and 3 minutes). The parameters were color intensity, anthocyanin stability, and antioxidant activity. The results showed that the oven microwave power and extraction time had significant effects on color intensity and antioxidant activity. The increasing of oven microwave power and extraction time increased a* value and antioxidant activity, and decreased b* value, significantly. The result also showed that the anthocyanin compounds was not stable with heating up to 105°C.