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Jurnal Lahan Suboptimal

jlso
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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 323 Documents

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Kajian Sistem Tumpangsari Jagung Manis dan Kedelai di Lahan Kering Kabupaten Musi Rawas Haris Kriswantoro; Hermanto Hermanto
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 2 No. 2 (2013)
Publisher : Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya

Potensi lahan kering di Kabupaten Musi Rawas cukup luas, dari luas lahan 1,2 juta hektar, 92,1 persen merupakan lahan kering, umumnya didominasi oleh tanah Ultisol. Â Tanah jenis ini bersifat masam (pH tanah rendah), miskin hara, mudah tererosi, mempunyai kandungan Al dan Fe yang tinggi serta kandungan bahan organik tanah yang rendah. Â Pengkajian sistem tumpangsari jagung manis dan kedelai di lahan kering yang bertujuan untuk menentukan pengaruh sistem tumpangsari terhadap pertumbuhan dan produksi jagung manis dan kedelai, telah dilaksanakan di Desa Lubuk Rumbai Kabupaten Musi Rawas pada bulan November 2012 hingga Maret 2013. Â Pengkajian dilaksanakan dengan menggunakan metode eksperimental yang terdiri dari 4 macam perlakuan sistem penanaman, yaitu: tumpangsari jagung manis dan kedelai tanpa pengapuran, tumpangsari jagung manis dan kedelai tanpa pengapuran, monokultur jagung manis dan monokultur kedelai. Â Varietas jagung manis yang digunakan adalah Master Sweet dan varietas kedelai adalah Anjasmoro. Â Kedelai menggunakan jarak tanam 40 cm x 15 cm untuk perlakuan tumpangsari dan monokultur, sedangkan tanaman jagung pada perlakuan tumpangsari menggunakan jarak tanam 200 cm x 75 cm dan jarak tanam 75 cm x 50 cm untuk monokultur. Â Hasil ansira memperlihatkan bahwa pada tanaman jagung manis perlakuan sistem penanaman memberikan pengaruh yang sangat nyata terhadap tinggi tanaman, jumlah tongkol, panjang tongkol, pengaruh nyata terhadap berat basah berangkasan dan pengaruh tidak nyata terhadap jumlah daun dan berat tongkol per tanaman, sedangkan terhadap tanaman kedelai perlakuan sistem penanaman memberikan pengaruh yang sangat nyata terhadap tinggi tanaman, jumlah cabang, jumlah polong, berat 100 biji, produksi per petak dan memberikan pengaruh tidak nyata terhadap berat polong per tanaman. Berdasarkan hasil uji BNJ dan tabulasi menunjukan bahwa perlakuan sistem tumpangsari jagung manis dan kedelai dengan pengapuran memberikan pengaruh terbaik terhadap pertumbuhan dan produksi jagung manis dan kedelai

Analisis Kandungan N-Nitrogen (Amonia, Nitrit, Nitrat) dan Fosfat di Perairan Teluk Pandan Provinsi Lampung Reza Iklima AS; Gusti Diansyah; Andi Agussalim; Citra Mulia
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 8 No. 1 (2019): JLSO
Publisher : Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya

Iklima ASÂ et al, 2019.Â Analysis of N-Nitrogen (Ammonia, Nitrate, and Nitric) and Phosphate at Teluk Pandanâ€™s water territorial, Lampung Province. JLSO 8(1):57-66.Teluk Pandanâ€™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 otherâ€™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 qualityâ€™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 Pandanâ€™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 â€“ 0,0091 mg/L PO4-P. Based on result Teluk Pandanâ€™s water territory still can be used for waterâ€™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.

Konsentrasi Sludge Minyak Bumi dalam Proses Bioremediasi Memanfaatkan Bakteri Indigen dan Lamtoro Gung Arief Alghifari; Sri Pertiwi Estuningsih; Nina Tanzerina
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 4 No. 1 (2015): JLSO
Publisher : Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya

This research aimed to determine synergies between bacteria indigen with lamtoroin bioremediation processes at various concentrations of sludge through the measurement ofvariables, and the number of bacteria, impairment of Total Petroleum Hydrocarbons (TPH), andweight of lamtoro gung. Experimental design used was Complete Randomized Design (CRD) with5 treatments and 5 replications, increase the concentration sludge treatment is control (0%), 2.5%,5%, 7.5%, and 10% of sludge. The study found that given sludge concentration increases causingthe higher number of bacterial populations. Sludge concentration decreased significantly affectTPH values and highest TPH values decrease at 7,5% concentration of sludge. Sludgeconcentration significanly affect the wet weight and given treatment sludge, Lamtoro wet wieghtdecreased at the end ofthe study

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 Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya

Moelyohadi et al., 2012.Â The Use of Â Various Types of Biofertilizers on Cultivation of Â Nutrient Efficient Corn Genotypes(Zea mays L. Â in Marginal Dry Land. JLSO 1(1):31-39.The study aimed at Â 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 Â 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 genotypesÂ B-41 (G1), L-164 (G2), S-194 (G3)Â and onehybrid variety:BISI-816 (G4) as agenotypecomparator. Alltreatmentunitswere givenlow dosesof chemicalfertilizerthat is 50% of theATPstandarddose(200kgUrea, SP-36 50kgand 25kgKClha-1).Â 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 productionÂ of 7.27 tons of dryÂ seed /acreÂ and the combined treatment of mycorrhizal fertilizer and genotype B-41 gave the highest productionÂ of 8.57 tons of dry seed / acreÂ

Keanekaragaman Vegetasi Hutan Mangrove di Pulau Payung Sungsang Banyuasin Sumatera Selatan Asia Afriyani; Fauziyah Fauziyah; Mazidah Mazidah; Ratih Wijayanti
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 6 No. 2 (2017): JLSO
Publisher : Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya

Afriyani et al, 2017. Vegetation Diversity of Mangrove Forest in Payung island Sungsang Village Banyuasin District. JLSO 6(2):113-119.The mangrove forest is a natural biological resources with various diversity potential that provides benefits directly or indirectly for the life of living beings. Payung island, Sungsang Village, Banyuasin District is one of the areas in South Sumatra Province where the forest mangrove still well preserved. The research abaout mangrove diversity has been conducted in Payung Island inÂ November 2017, The aim of this research was to know the composition and species diversity of mangrove in the island. The collection of primary data in this research was included measurements of the distribution of mangrove vegetation. Important Value index (IVI) is a diversity index and parameter analysis of mangrove vegetation. There are 4 species of mangrove was founded in 3 transect observations, namely Avicennia alba, Avicennia marina, Bruguera apicullata gymnorhiza and Rhizophora. Bruguera vegetation dominate gymnorhiza tree level, while at the level of the child dominated two types of mangrove vegetation i.e. vegetation Avicennia marina and Rhizophora apicullata vegetation. The condition of mangrove forestÂ showed that community in Payung Island are stable that It contains mangrove forest condition criteria Broken-with the value of the density of Mangrove (ind/ha) < 1000.

Pengaruh Kombinasi Pupuk Organik dan Hayati Terhadap Pertumbuhan dan Produksi Galur Jagung (Zea mays. L) Hasil Seleksi Efisien hara Pada Lahan Kering Marginal Yopie Moelyohadi; M. Umar Harun; Munandar Munandar; Renih Hayati; Nuni Gofar
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 2 No. 2 (2013)
Publisher : Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya

This study aimed to study the growth and yield of maize crop nutrientÂ efficientÂ selection againstÂ theÂ combination of different types of organic fertilizers and bio-fertilizers at low dose levels of chemical fertilizer on marginal dry land for the development of technological innovation fertilization on maize crops to reduce the use of chemical fertilizer on marginal dry land. This study was conducted in the field trials of Agro Techno Park (ATP), the Ministry of Research and Technology, South Sumatra fromÂ JanuaryÂ to MayÂ 2012.Â Â The experimental design used was SplitPlotdesign with three replications.Â Â . The main plot treatment was dose levels of chemical fertilizer consists of : P1 = 50 % standard dose of ATP ( 200 kg urea , 50 kg SP36 and 25 kg KCl/ha ) and P2 = 25 % standard dose of ATP ( 100 kg urea , 25 kg SP36 KCl and 1.25 kg/ha) . treatment subplot , is the combined delivery of this type of organic fertilizer + biofertilizer types , comprising : KHO = control ( without organic fertilizer + biofertilizer ) , KH1 = composted cow manure + mycorrhiza , KH2 = composted cow manure + bacterial phosphate solvent , KH3 = composted chicken manure + biological mycorrhizae , KH4 = composted chicken manure + bacterial phosphate solvent , KH5 = compost straw corn + mycorrhizae , KH6= composted maize straw + bacteria phosphate solvent , KH7 = compost Legume cover crop ( LCC ) + Mycorrhiza and compost KH 8= legume cover crop (LCC) + solvent bacteria Phosphate.Â The results showed that chicken manure compost fertilizer + fertilizer mycorrhizal give the best effect on the growth and yield of dryland corn yields marginal with an average of 9.70 tons of dry cobs/ha and the combined treatment of chemical fertilizer at 50 % level and composting chicken manure + mycorrhizal give the best effect on the growth and yield of maize in marginal dry land , with an average yield reached 10.51 tons of dry seed/acre.

Studi Empiris pada Pola Sumber Dana untuk Pembiayaan Usahatani Padi di Sumatera Selatan Maryanah Hamzah; Agustina Bidarti; Erise Anggraini; Mirza Antoni
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 7 No. 2 (2018): JLSO
Publisher : Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya

Hamzah et al, 2018. Empirical Study on the Pattern of Funding Sources for Rice Farming in South Sumatra. JLSO 7(2):196-203.Â The objective of the study was to identify the source and size of the financing portion of the rice farming from the loan and the terms and the interest rate charged. The interviews were conducted on 75 samples of rice farmers whose farming costs were partly derived from loans at three different land ecosystems in South Sumatra Province. The three types of ecosystems viz., tidal swamp land, technical irrigation, and swamp land were used in the study.Â The results showed that there were seven financing sources that farmers used for fulfill their production cost if they not enough capital. Middlemen was biggest source with a portion of 45.28% and their own costs of 43.52, the rest is relatively small comes from money lenders, families, rice milling units, cooperative and friends. The interest rate charged varies from 3% to 50% per planting season. The lowest interest rate on lending money was to cooperatives and middlemen. However, if farmers borrow from middlemen, they must sell their rice to them. The highest interest rate from money lenders is 50%. All loans were being paid at after harvested time. Only borrow to families and friends were not charged interest and other terms. Farmers were forced to use non-formal lending institutions because banks located far away and they were afraid to come to the bank. It is suggested to reduce the dependence of rice farmers on non-formal lending institutions through developing a more effective agricultural cooperative.Â Â Â Â Â Â Â

Efek Sisa Pupuk Kandang Diperkaya Fosfat Alam terhadap Produksi Jagung Manis dan Jerami di Lahan Kering Dwi Retno Lukiwati; R.I. Pujaningsih
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 3 No. 2 (2014)
Publisher : Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya

Manure enriched by rock phosphate (RP) and inoculated with biodecomposer very important to improve the upland fertility. Residual effects of applied manure can be used for the next growing season. The objective of the research was to investigate the residual effects of some kind of manure on sweet corn (Zea mays saccharata), dry matter (DM) and P production of stover on second growing season. A field experiment of completely randomized design with 7 treatments and four replicates. Level of P (RP), N (urea) and K (KCl) fertilizers was 66 kg P/ha, 200 kg N/ha, and 125 kg K/ha, respectively. All of manure application at 30 ton/ha and enriched with RP. The treatments at the first growing season were T0 (manure), T1 (manure +EM4), T2 (manure+starTmik), T3 (manure +stardec), T4 (manure granular+EM4), T5 (manure granular+starTmik), and T6 (manure granular+stardec). The sweet corn was harvested at 70 days, the stover was cut and measured for DM and P production. The result showed that effect of some kind of manure was not significantly different to sweet corn and DM production. Manure inoculated with biodecomposer resulted in signficantly higher of P production than without biodecomposer. Conclusion, all of manure resulted in similar on sweet corn and DM, except manure inoculated with biodecomposer resulted in higher of P production than without biodecomposer.

Mobilisasi Bibit Padi Unggul sistem Dapog antar Kabupaten Sebagai Alternatif Penyediaan Bibit Padi Guna Mendukung Percepatan Tanam Padi di Kalimantan Selatan Abdul Sabur; Putu Sri Ratmini
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 5 No. 1 (2016): JLSO
Publisher : Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya

Sabur et al, 2016.Â Paddy Seed Superior mobilization Dapog system between the District as an Alternative Provision Paddy Seed to Support Accelerating Paddy PlantingÂ in South Kalimantan. JLSO 5(1):43-52.Breeding technology using dapog can be an alternative for the provision of rice seeds that can be mobilized anywhere even distances. In application required correct technique when the rolls of rice seeds will be moved so that no damage, and rice seeds can be used for optimal planting. The purpose of this study was conducted to determine the proper technique for memindahan seeds to great distances that use dapog seedlings, and to know which crop performance in mobilization after two weeks grown in paddy fields. This activity was conducted in August 2016, the nursery of paddy system dapog carried out in the village of Bungur New District of Tapin Central Tapin district, the rice seedlings were transferred to the village of Pangambau Hulu subdistrict Haruyan Hulu Sungai Tengah with the distance of 69 km and takes about 1 hour and 25 minutes to then directly planted in paddy fields that had been prepared. The research method with direct observations and describe. From the observation data obtained as follows, 230 rolls of seeds brought, 222 rolls can be directly planted using planting machines Jarwo trasplanter. In addition the level of damage to a minimum or an average of 1.5%, while the highest damage is due to wither due to the distance and wind by 2% or 5 rolls of a total of 230 scrolls were brought, and position rolls of rice seedlings that much gain exposure is positioned on top of the pile. Vibrations caused by road conditions are not smooth when seedlings in mobilization also occurred on a roll topmost ditumpukan seedlings, the number of rolls fall apart as much as 2% or 5 reels. The rolls are oppressed due stacked seed and seedlings were damaged due to errors at the time of rolling 1%. Placements are set up well during the trip, and experienced technical personnel, making seed rolls only minimal shifting. Mobilization time better morning and the movement speed of the car attempted stable with an average speed of 40-60 km / h on a smooth path to reduce wind into rolls seed and on the bumpy roads the speed reduced to 10-20 km / h or adjust to the road conditions so that the vibration can be minimized.

Respon Aplikasi Kapur Terhadap Beberapa Sifat Kimia Tanah Lahan Pasang Surut Akbar Paripurna; Dedik Budianta; Adipati Napoleon
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 6 No. 1 (2017): JLSO
Publisher : Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya

Paripurna et al, 2017. Response of Lime Application to Some Soil Chemical Properties of Tidal Swamp Land. JLSO 6(1):59-70.Tidal swamp land of Banyu Urip Village Banyuasin District South Sumatera Province has a pH 4.5, 4.96 cmolkg-1 Al-exch, >20% Al saturation, low Ca and Mg availableity and contain Pyrite. This study analyzed response of lime application to some soil chemical properties of tidal swamp land. Lime used was dolomite. The research was conducted on April 2017.Lime dosages consisted of 0.00 ton ha-1, 0.81 ton ha-1, 1.63 ton ha-1, 2.45 tonÂ Â ha-1, 3.26 ton ha-1 and 4.07 ton ha-1 respectively mixed to 10 kg soil and placed to polybags than incubated for 7 days.Variables measured were soil pH, K-exch, Ca-exch, Mg-exch, Al-exch, CEC, H-exch and Al saturation. The results showed that lime with 3.26 ton ha-1 dosage gived best results by increased Mg-exch up to 0.85 cmolkg-1 andÂ Â decreased H-exch down to 1.14 cmolkg-1, while lime with 4.07 ton ha-1 dosage gived best results by increased soil pH up to 4.95, K-exch 0.64 Cmolkg-1, Ca-exch 2.18 cmolkg-1, and CEC 15.23 cmolkg-1, also decreased Al-exch down to 1.96 cmolkg-1 and Al saturation down to 12.87%. Lime as an ameliorant to acidic soil is effective to increase soil nutrients, decrease soil acidity, Al-exch and Al saturation that influenced by fertilization.

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