Jurnal Lahan Suboptimal
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
275 Documents
<![CDATA[KajianKehilangan Hasil Pada Pengeringan dan Penggilingan Padi di Lahan Pasang Surut Sumatera Selatan ]]>
<![CDATA[Budi Raharjo]]>;
<![CDATA[Dedeh Hadiyanti]]>;
<![CDATA[Kgs. A. Kodir]]>
<![CDATA[ Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 1 No. 1 (2012) ]]>
Publisher : <![CDATA[Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya ]]>
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DOI: 10.33230/JLSO.1.1.2012.10
<![CDATA[Raharjo et al., 2000. Study of Yield Losses during Drying and Milling of Paddy in Tidal Lowland of South Sumatra. J. Lahan Suboptimal 1(1):72-82.In tidal lowland of South Sumatra low quality rice called beras batik is commonly found. Beras batik is rice that is low in both quality and prices. The low quality rice grains have high fracture, the percentage of head rice is only 25%, while the percentage of yellow grain exceeds 50%, and its selling price is only Rp. 1800/kg in 2004. The main causes were poor harvest and post harvest handling, delaying harvest and post harvest due to the lack of manpower and facilities owned by farmers. The condition was worsened by the heavy rainfall during harvest time and sometimes coincided with high tide. The study was conducted on July 2011 (dry season) in tidal lowland reclamation area of Telang Rejo village, Muara Telang Sub-district, Banyuasin Regency. In this study 2 post-harvest technologies were introduced to improve harvesting techniques and post harvest handling; (1) Drying assessment of Grain Dryer Machine Fueled withhusk, and (2) Study the Different Configurations of Rice Milling Unit. Lost during drying was 2.77 for sun drying compared to 7.13% with box dryer. Field testing at RMU 1 showed that milling recovery using box dryer (63.5%) was higher than sun drying (61.6%). But, at RMU 2 milling recovery for box dryer (61.3%) was lower than sun drying (63.7%). For milling losses, box dryer (4.99%) was lower than sun drying (5.99%).]]>
<![CDATA[Keanekaragaman Vegetasi Rawa Di Kecamatan Tanjung Lago ]]>
<![CDATA[Siti Indah Oktaviani]]>;
<![CDATA[Didi Jaya Santri]]>;
<![CDATA[Endang Dayat]]>
<![CDATA[ Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 5 No. 2 (2016): JLSO ]]>
Publisher : <![CDATA[Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya ]]>
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DOI: 10.33230/JLSO.5.2.2016.101
<![CDATA[Oktaviani, et al. Vegetation Diversity of Swamp in Tajung Lago District. JLSO 5(2):198-207. The study aims to determine the vegetation diversity of swamp ecosystems in the district of Tanjung Lago. The study was conducted from June to July 2011. Theanalysis is using squares method, and quantitative data analysis was conducted to measure the value of density, dominance, frequency, importance and diversity index of each type of plant. The results showed that the vegetation in the swamp consists of 16 genus and 21 species dominated by Pteridophyta and Spermatophyta. The value of vegetation diversity (2.0680), where the higher the number, the higher the index type of diversity of a kind. Such characteristics are caused by environmental influences such as organic matter content and low pH and factors derived by human intervention.]]>
<![CDATA[Analisis Konstribusi Pendapatan Usahatani Kelapa Dalam pada Perkebunan Rakyat di Tipologi Lahan Pasang Surut Provinsi Sumatera Selatan ]]>
<![CDATA[Yudhi Zuriah Wirya Purba]]>
<![CDATA[ Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 3 No. 1 (2014) ]]>
Publisher : <![CDATA[Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya ]]>
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DOI: 10.33230/JLSO.3.1.2014.102
<![CDATA[This study aims to analyze the revenue comparison monoculture with polyculture farming patterns and the contribution of small holder coconut farming on the household income of families in tidal lowlands type A and B. The study was conducted in Banyuasin and Ogan Ilir Districts where tidal lowland is always inundated. Sample farmers were withdrawn usingproporsionate stratified random sampling. The number of sample were 120 farm house holds monoculture and polyculture farming patterns. The results showed that the income from monoculture and polyculture farming patterns was not significantly different. The coconut farm income in both monoculture and polyculture patterns made major contribution to the household income.]]>
<![CDATA[Aplikasi Bioinsektisida Berbasis Jamur Entomopatogen Terhadap Penggerek Batang Padi Daerah Pasang Surut Sumatera Selatan ]]>
<![CDATA[Khodijah Khodijah]]>
<![CDATA[ Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 3 No. 1 (2014) ]]>
Publisher : <![CDATA[Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya ]]>
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DOI: 10.33230/JLSO.3.1.2014.103
<![CDATA[Population and the intensity of the rice stem borer attack can influence pesticide application. This study aimed to examine the effect of active ingredient formulation of solid and liquid Beauveria bassiana bioinsecticide to control rice stem borer (PBP). The research was conducted in tidal lowland rice cultivation in the Village Mulya Sari Banyuasin Regency, South Sumatra, from Maret 2012 to Juni 2012. Observations of population and intensity of attacks observed directly on the rice clump clump as many as 80 samples per ha. The results showed that the application of liquid and solid bio insecticide with active entomopathogenic fungi material effected on the population, the intensity of PBP larvae attack. The results showed that the application of liquid and solid bio insecticide with entomopathogenic fungi active material in the tidal land effect on the population, the attack intensity of PBP larvae. The results found that in tidal land application of liquid bio insecticide could suppress the population aged 10-40 dap of PBP approximately 75%, and solid and bio insecticide approximately 37.5%. Application of liquid bioinsecticide could suppress population aged 50-80 dap of PBP approximately about 55%, and solid bioinsecticide could suppress larval populations of PBP approximately 40%. Liquid bioinsecticide applications could reduce attack intensity PBP of rice plants aged at 10-40 dap approximately 81.75% and approximately 55.44% for solid bioinsecticide. At age 50-80 dap rice, liquid bio insecticide could reduce attack intensity of PBP about 70%, and applications of solid bioinsecticide approximately 60%.]]>
<![CDATA[Aplikasi Formulasi Pakan Seimbang untuk Mendukung Peternakan Itik Petelur Ramah Lingkungan ]]>
<![CDATA[Agung Prabowo]]>;
<![CDATA[Aulia Evi Susanti]]>
<![CDATA[ Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 3 No. 1 (2014) ]]>
Publisher : <![CDATA[Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya ]]>
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DOI: 10.33230/JLSO.3.1.2014.105
<![CDATA[Feed is a major factor in the business of laying ducks. Approximately 70% of the production is to feed. Therefore, to get optimum benefit, feed must be efficiently formulated. To efficient, feed must be balance, the content of feed nutrients must be in accordance with the needs of livestock, so the remaining nutrients out of feed is a minimum. In addition to efficient, balanced feed can also reduce environmental pollution. Waste produced from farm can be a source of contamination of water or wells, if there is no further waste management. One of the consequences of water pollution by livestock waste nitrogen levels are rising. To simplify and accelerate the balanced feed formulations required a software application. This paper aims to introduce balanced feed formulation based software. Application software consists of three main parts, namely database, data processing and results. Simulations conducted on laying ducks feed on the production period. Two types of feed used in this simulation, namely: regular feed (PB) and balanced feed (PS). Each type of feed is repeated five times. Simulation results with the feed formulation software application show significant difference between PB and PS feed. PS is better than PB. Application of balanced feed formulation can be used to support environmentally friendly farming laying ducks.]]>
<![CDATA[Kelimpahan dan Pola Penyebaran Nematoda Entomopatogen sebagai Agensia Pengendali Serangga Hama pada Berbagai Lahan di Semarang ]]>
<![CDATA[Dyah Rini Indriyanti]]>;
<![CDATA[Arini Dwi Hutami Pribasari]]>;
<![CDATA[Desi Puspitarini]]>;
<![CDATA[Priyantini Widiyaningrum]]>
<![CDATA[ Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 3 No. 1 (2014) ]]>
Publisher : <![CDATA[Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya ]]>
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DOI: 10.33230/JLSO.3.1.2014.106
<![CDATA[The soil was a place which plants and various organisms live. One of the soil organisms that plays an important role as agents of biological control of parasitic nematodes of insects, was known by entomopathogenic nematodes (ENP’s). The aims of this research was analyzing the population density and patterns spread of the entomopathogenic nematodes on overgrown annuals land, overgrown perennial land, non-vegetation land and ranch land. The experimental design used in this study was a randomized design group. The technique of determining location using purposive sampling. Soil samples were taken at four location with eight replicates. The research was held in August-October 2013. The ENP’s of land obtained by the technique of baiting using Tenebrio molitor. The result showed that ENP’s population density was found from ranch land was 67.411 tail/mL. It was higher than the ENP’s population density on non-vegetation land was 15.199 tail/mL. The statistics Mann Whitney showing absence of difference density of populations ENP’s. A pattern to scatter nematode entomopathogen on some land widely distributed in clumped.]]>
<![CDATA[Efisiensi Pemanfaatan Lahan pada Tumpangsari Jagung (Zea mays L.) dan Kedelai (Glycine Max L. Merrill) di Lahan Pasang Surut ]]>
<![CDATA[Iin Siti Aminah]]>;
<![CDATA[Rosmiah Rosmiah]]>;
<![CDATA[M. Haris Yahya]]>
<![CDATA[ Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 3 No. 1 (2014) ]]>
Publisher : <![CDATA[Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya ]]>
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DOI: 10.33230/JLSO.3.1.2014.107
<![CDATA[Tidal swamp is suboptimal land with low fertility rates. This study aims to determine the cropping pattern through intercropping spacing arrangement with biological fertilizer application on corn and soybean. Field research was conducted in the village of tidal swamp Banyu Urip South Sumatra in June-November 2013 using the Split Plot design with the main plot composition Corn planting distance (J) - Soybean (K) i.e. JK 1:3, 1:2 and 1:1; subplot is the provision of biological fertilizer (0, BioP, Azospirillum and BioP + Azospirillum) with 3 replications. Data monoculture corn and soybean as control. Land use on maize soybean intercropping obtained shelled corn and soybean production highest in treatments JK 1:3 with inorganic fertilizer application, although not statistically significantly different (HSD = 0.05). The efficiency ratio is calculated through the land Land Equivalent Ratio (LER) in the treatment of JK 1:3 high of 1.56 whereas the biological fertilizer application LER was 1.69. Competition between plants with CR (competition ratio) of 7.25 occurred at the highest JK 1:1. This study showed a favorable outcome in the land use pattern of intercropping maize planting soybeans in tidal swamps.]]>
<![CDATA[Respirasi Tanah sebagai Indikator Kepulihan Lahan Pascatambang Batubara di Sumatera Selatan ]]>
<![CDATA[Dwi Setyawan]]>;
<![CDATA[H. Hanum]]>
<![CDATA[ Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 3 No. 1 (2014) ]]>
Publisher : <![CDATA[Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya ]]>
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DOI: 10.33230/JLSO.3.1.2014.109
<![CDATA[Soil respiration has been widely studied in relation to soil health and carbon sequestration. Respiration measurements are better performed in the field, either with in-situ static or dynamic systems. This study evaluated the recovery of coal post-mining land in Tanjung Enim, South Sumatra, which is reflected from the ground surface indicators and soil respiration. Observations were carried out at PT Bukit Asam location represented by Muara Tiga Besar (MTB). Secondary forest was also used as a reference. The area had been revegetated generally with sengon, bamboo and acacia in 2000 (North MTB), while planting in 2005, 2006 and 2007 only with acacia interspersed with eucalyptus (South MTB). Soil samples were taken with a number of brass rings and then divided into 0-2, 2-5 and 5-10 cm depth. Respiration with inverted box technique used a solution of 0.5 M KOH. Revegetation increased significantly the organic carbon content from 0.96% to 1.96%, although still lower than organic carbon of the forest soil with the average of 2.81%. There was also a similar pattern found for total N and available P. It is evident that soil enrichment occurs in the 0-2 cm layer. In situ soil respiration showed no consistent increase with age of revegetation with values ranging from 670 to 767 mg CO2/m2 per hour, while the forest soil reaches 789 mg CO2/m2 per hour. Based on these facts we conclude that soil respiration can not be used as the sole indicator of recovery in coal post-mining land, thus needs to be combined with other variables.]]>
<![CDATA[Pengelolaan Lahan Rawa Gambut Terdegradasi Melalui Pengayaan Karbon Mendukung Ketahanan Pangan Beras ]]>
<![CDATA[Najib Asmani]]>
<![CDATA[ Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 1 No. 1 (2012) ]]>
Publisher : <![CDATA[Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya ]]>
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DOI: 10.33230/JLSO.1.1.2012.11
<![CDATA[Najib, A. 2012. Managing Degraded Peatland through Carbon Enhacement to Support Rice Security. J. Lahan Suboptimal 1(1):83-91.Indonesia often faces food problem, especially rice as the staple food for most Indonesian. To support rice security, the Government of Indonesia has made serious efforts to increase rice productivity through cultivating suboptimal land. However, utilizing it in unwise ways, especially for the degraded peatland, could release green house gases. Utilization of peatland for rice field should be done simultaneously with wise conservation to enhance carbon stock. It should be managed in a good way in order to avoid the increaseof carbon dioxide emission. The addition of carbon from this activity could be considered as a potential carbon incentive if REDD+ scheme be ratified officially. As a result, farmer would be able to receive carbon incentive as their additional income.]]>
<![CDATA[Budidaya Pakchoy (Brassica rapa L.) di Lahan Tailing Pasir Bekas Penambangan Timah dengan Amelioran Pupuk Organik dan Pupuk NPK ]]>
<![CDATA[I. Inonu]]>;
<![CDATA[N. S. Khodijah]]>;
<![CDATA[A. Supriadi]]>
<![CDATA[ Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 3 No. 1 (2014) ]]>
Publisher : <![CDATA[Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya ]]>
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DOI: 10.33230/JLSO.3.1.2014.110
<![CDATA[The objectives of this research are to study of the feasibility of using the sandy tailings for pakchoy (Brassica rapa L.) cultivation, to study the effect of organic manure and NPK fertilizer ameliorants to growth and yield of pakchoy and to get the optimum dosage of the organic manure and NPK fertilizer for pakchoy cultivation in sandy tailings of tin post-mining. This research was conducted in sandy tailings site which has been 27th years old after mining in Pemali Village Bangka District on May 2013 to July 2013. This research used factorial randomized completely block design with two factors and three replications. The first factor is organic manure dosage (15; 30; 45 ton/ha) and the second one is NPK fertilizer dosage (200; 250; 300 kg/ha).The results that the sandy tailings of tin post-mining is feasible to pakchoy cultivation. Organic manure dosage affected the growth and production of pakchoy and dosage of 30 ton/ha of organic fertilizer give the best growth and yield responses. There was no significant effect of NPK dosage to growth and yield of pakchoy. There was no significantly interaction effect of organic manure and NPK factors to growth and yield of pakchoy.]]>
