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 13 Documents
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Pengaruh Teknologi Pemupukan Terhadap Kwalitas Tanah, Pertumbuhan Dan Hasil Padi Varitas Ciherang Yang Ditanam Pada Sawah Bukaan Baru Di Dusun Kleseleon, Kabupaten Malaka, Nusa Tenggara Timur Sukristiyonubowo, Sukristiyonubowo; Riyanto, Damasus; Widodo, Sugeng
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.8.1.2019.359

Abstract

Sukristiyonubowo et al, 2019. The Influence of Fertilizer Technologies on Soil Quality, Rice Growth and Biomass Production of Ciherang Vareity Cultivated in Newly Developed Lowland Rice Fields of Kleseleon, Malaka District. JLSO 8(1):1-10.Highly weathered and potential acid sulphate soils are granted for newly developed lowland rice. They have many short comings including low in major elements and Fe and Mn in toxic levels. Study on soil fertility, rice growth and biomass productions of Ciherang variety planted in newly developed lowland rice was conducted in Kleseleon Village, Malaka District in 2014. The aim of study was to know the effect of technologies on soil fertility properties, rice growth and biomass productions.The experiment was started in February 2014 and harvested in June 2014. Five promising treatments were studied including: Farmers Practices, Package A : NPK recommended rate + 3 tons compost, Package B : NPK recommended rate + 2 tons compost + Bio fertilizer, Package C: ¾ recommended rate + 3 tons compost + Bio fertilizer and Package D: NPK recommended rate + 2 tons compost + Bio fertilizer, in which N, P and K were split two times: 50 % given at planting time and 50 % at 21 DAP. Two kilo gram composite soils from five points and ring samples of 0-20 cm in depth were taken in February 2014 for analyzing chemical, physical and biological parameters, before soil ploughing. The results indicated that the soil quality of newly developed low land rice fields in Kleseleon was low. These technologies increased the soil fertility including soil pH, soil organic C, available P and K extracted with HCl 25 %. In addition, the best technology was observed in package B (NPK Recommendation rate + 2 tons organic fertilizer + Bio fertilizer/SMART, in which N and K fertilizer were applied 3 times: 50 % at planting, 25 % at 21 HST and 25% before flowering) for tillers number and rice biomass productions. The yield reached 5.88 ± 0.29 and 4.84 ± 0.47 tons ha-1 season-1 for rice grains and rice straw, respectively.
Penggunaan Bungkil Inti Sawit dan Enzim Mannanase dalam Ransum terhadap Performa Produksi Telur Puyuh (Coturnix coturnix japonica) Noferdiman, Noferdiman; Sestilawarti, Sestilawarti; Zubaidah, Zubaidah
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.8.1.2019.361

Abstract

Noferdiman et al, 2019. The use of palm kernel meal and mannanase enzyme in diets on the production performance of quails (Coturnix coturnix japonica) . JLSO 8(1):11-19.The objective of the study was to investigate the effect of the levels of palm kernel meal and mannanase enzyme in diets to get the best performance of quails. It was used the 180 female quails in treatment combination using the completely randomized design in factorial arrangement of 2 x 3 with 3 replications. Each unit study consisted of  10 quails. The treatment consisted of 2 levels of mannanase enzyme, i.e. 0.00, 0.10 % and 3 levels of palm kernel meal additions, i.e. 0, 10 and 20 %. The results of the study showed that the use of mannanase enzyme and palm kernel meal and their interaction were no significant (P>0.05) affected feed consumption, eggs production, feed conversion, egg weight, egg shell thickness, and haugh unit (HU). The use of mannanase enzyme highly significant (P<0.01) affected on eggs production and feed conversion however there were no interaction between the treatments. It was concluded that the addition of 0.10 % of mannanase enzyme in diets consisting 20% palm kernel meal can improve the performance egg production of quails.
Penggunaan Melati Air (Echinodorus palaefolius) sebagai Filter Biologi pada Pemeliharaan Ikan Maanvis (Pterophyllum scalare) Riyadhi, Kezia Agustine; Jubaedah, Dade; Wijayanti, Marini; Almaniar, Siska
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.8.1.2019.388

Abstract

Almaniar et al, 2019. The Using of Water Jasmine (Echinodorus palaefolius) as Biological Filter on Angelfish (Pterophyllum scalare)  Rearing. JLSO  Water quality was  One factors that become a contraint in ornamentalfish culture. This study aimed to compare the result of  jasmine water as a biological filter in maintaining water quality and reducing organic matter in the rearing of angelfish with a recirculation system. This research was conducted for 28 days at the Basic Laboratory of  Aquaculture, Departement of aquaculture, Universitas Sriwijaya. The research Used a completely randomized design with 5 treatments and 3 replications. The results showed that water quality  of  the temperature, pH, dissolved oxygen, ammonia, nitrat and  phosphate values was (27.2-29.2ºC), (5.7-6.9), (4.68-5.74 mgL-1), (0.005-0.037 mgL-1), (0,06-0,12 mgL-1) and ( 0.013-0.107 mgL-1). In treatment P0 the lowest fish survival was 44.45%, absolute length growth was 1.56 ± 0.26 cm, absolute weight growth was 1.47 ± 0.34 g, feed efficiency was 40,54 ± 2,54. While in treatment P4 the highest survival was 72.22%, absolute length growth was 1.24 ± 0.17, absolute weight growth was 1.25 ± 0.24 g feed efficiency 51.32 ± 13. The survival rate of angelfish in the treatment  without using water jasmine showed the lowest percentage of survival compared to other treatment.
Analisis Kesesuaian Perairan untuk Keramba Jaring Apung di Kecamatan Sirah Pulau Padang Kabupaten Ogan Komering Ilir Provinsi Sumatera Selatan Haris, Rangga Bayu Kusuma; Yusanti, Indah Anggraini
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.8.1.2019.356

Abstract

Haris et al, 2019. The Analysis of Water Suitability for Floating Net Sprouts in Sirah Pulau Padang, Ogan Komering Ilir District, South Sumatra Province. JLSO 8(1):20-30.The purpose of this study is to analyze the level of water suitability of the floating net sprouts in sirah pulau padang, ogan komering river, Serdang Menang Village, OKI South Sumatra Regency based on water physical and chemical parameters. This study was conducted on July - August 2018 at the Komering River, Ulak Jermun village, Terusan Menang Village, and Mangun Jaya Village, OKI District, South Sumatra. The data of sampling was divided into 3 stations, they were; station 1 was Ulak Jermun Village (3 ° 18'45.48 "LS and 104 ° 53'5.32" BT), station 2 was Terusan Menang Village (3 ° 17'14.13 "LS and 104 ° 52'46.78 "BT), and station 3 was Mangun Jaya village (3 ° 18'14.92" LS and 104 ° 52'59.48 "BT). The data of Samples were tested at the chemical laboratory in Palembang Public Water Fisheries and Extension Research Institute directly. The results of the study was for Station 1, Station 2, and Station 3 with a value was  48% with a good feasibility information. The results of measurements of water quality parameters, the pH was about 6.6 - 6.7, temperature was about from 24., 53 - 26.93oC, DO 3.93 - 4.36 mg / l, ammonia was about 0.78 - 0.16 mg / l, water brightness was about from 34.67 - 43.33 cm, CO2 4.53 - 5.03 mg / l, depth 2.36 - 2.47 m, current velocity was about 0.38 - 0.44 m / s, nitrate was about 0.37 - 0.439 mg / l, phosphate was about 0.009 - 0.225 mg / l and the bottom substrate of water was mud.
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.

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