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.
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<![CDATA[Pemanfaatan Lahan di bawah Tegakan Kelapa di Lampung ]]>
<![CDATA[Junita Barus]]>
<![CDATA[ Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 2 No. 1 (2013) ]]>
Publisher : <![CDATA[Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya ]]>
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DOI: 10.33230/JLSO.2.1.2013.37
<![CDATA[Lampung is one of the central areas of coconut plantations in Indonesia, covering an area of about 126,129 ha. Approximately 80% of land under coconut can be used for other crops and livestock. Types of plants that can be cultivated in between coconut plants (intercrops) include perennial crops such as cocoa and banana, annual crops such as corn, soybeans and upland rice, depending on the local climate and soil conditions. Constraints in land use under the coconut tree were solar radiation and soil fertility (low fertility soil as a growing medium). Dry land in Lampung is generally acidic soil with a pH below 5 in which the availability of nutrients, especially P is low. Efforts should be made to improve the fertility of the land, including the application of inoculum solvent phosphate on acid soils, the use of organic fertilizers and bio-fertilizers with the right dose according to the condition of the land. Observations were conducted at several villages which the centers of coconut plantations in the South Lampung regency. In these villages, only about 30% of the total area under coconut trees was used for intercrops. Types of plants for intercrops were maize, bananas, and upland rice.]]>
<![CDATA[Pengaruh Tumbuhan Liar Berbunga terhadap Tanaman Tebu dan Keberadaan Parasitoid di Pertanaman Tebu Lahan Kering, Cinta Manis Sumatera Selatan ]]>
<![CDATA[Dewi Meidalima]]>
<![CDATA[ Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 2 No. 1 (2013) ]]>
Publisher : <![CDATA[Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya ]]>
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DOI: 10.33230/JLSO.2.1.2013.34
<![CDATA[Sugarcane is one of commodity plants that can grow well in dry land. Sugarcane plantation area at Cinta Manis is approximately 25,000 hectares. The purposes of this study were to determine the effect of wild flowering plants on sugarcane and the presence of parasitoids. This study was conducted in PTPN VII Cinta Manis South Sumatra, from February to September 2012. The results indicated that wild flowering plants in Cinta Manis sugarcane plantations consisted of 28 families and 91 species. Observation and identification of wild flowering plants conducted on 1 ha plot obtained as many as 23 species, 8 of which are the most dominant species, namely Borreria alata, mitracarpus hirtus, Cyperus tunuiculmis, Cyperus plavipus, Richardia brasiliensis, Cleoma rutidosperma, Ageratum conyzoides, and  Spermacoce remota. The presence of wild flowering plants had no effect on weight, length, diameter and number of segments of sugarcane. Number of egg parasitoids of sugarcane pests found on land with and without the wild flowering plants as much as 1,489 and 1,508 pieces respectively. Number of parasitoids larvae were found on the land with and without the wild flowering plants as much as 343 pieces and 234 pieces respectively.]]>
<![CDATA[Kajian Tanam Sistem Sonor terhadap Varietas Unggul Padi di Lahan Pasang Surut Sumatera Selatan (Studi Kasus di Daerah Pasang Surut Telang) ]]>
<![CDATA[NP. Sri Ratmini]]>;
<![CDATA[Yohanes Yohanes]]>
<![CDATA[ Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 2 No. 1 (2013) ]]>
Publisher : <![CDATA[Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya ]]>
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DOI: 10.33230/JLSO.2.1.2013.38
<![CDATA[Sonor system (direct seeding) was practiced by rice farmers in tidal land.  Labor was one of the limiting factors in the farming system in tidal land. Implementation of the system can save labor cost. The purpose of this study was to see the level of adaptation and productivity of some new varieties of the sonor system technology. The study was conducted in tidal land typology of potential acid sulphate in Mukti Jaya Village, Muara Telang Sub-District, Banyuasin District in 2011/2012 planting season. Varieties tested were new varieties, namely Inpari 4, Inpari 10, Inpari 11, Inpari 13, Mekongga and Ciherang as the control. The observations were conducted at 3 fields as replication. The study showed that all the new varieties tested indicated high adaptability to the sonor system and the production has approached potential results.  Varieties with the highest production were Inpari 10 and Inpari 13 of  8.35 t/ha and 8.19 t/ha respectively.]]>
<![CDATA[Ketahanan Varietas Padi Toleran Rendaman dan Responnya Terhadap Pemupukan ]]>
<![CDATA[Ikhwani Ikhwani]]>
<![CDATA[ Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 2 No. 1 (2013) ]]>
Publisher : <![CDATA[Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya ]]>
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DOI: 10.33230/JLSO.2.1.2013.30
<![CDATA[Ikhwani. 2012. Resistency of Submergence Tolerant Rice Variety and Its Response to Fertilizers. JLSO 2(1):1-13.Submergence Tolerant Rice Varieties (STRV) were needed to anticipate yield reduction due to flash flood. Adoption of good agriculture practices such as nutrient managements for the varieties was expected to reduce yield declaining due to submergence. The objectives of this study were to understand the effects of submergence, fertilizers application and their interaction to plant growth pattern. A pot experiment was conducted in glasshouse at Muara Experimental Farm, Bogor from July to October 2011. The experiment was arranged in a factorial randomized complete block design with three replications.  Factor 1 was Fertilizer of 112.5 kg N / ha, in the form of prill urea (P1), SCU / ha (P2), Carbon Coated Urea (CCU) (P3), 400 Ponska kg + 100 kg urea / ha (P4), and treatment1 + 400 kg Silicate fertilizer / ha (P5). Factor 2 was Variety, namely Ciherang sub 1 (V1), Inpara 4 (Swarna sub-1) (V2), Inpara 5 (IR64 sub1) (V3). Total treatments were 15 plus one set of "without submergence" treatment and their replications as controls. The duration of submergence was 14 days, (14 DAT - 28 DAT).  The results showed that submergence reduced rice yield up to 17.5% compared to without submergence, or from 19,2 g/pot to 15,9 g/pot. Submergence decreased plant growth rate, tiller number and delayed plant maturity. Decreased of plant height and tiller number for Ciherang sub 1 variety was the lowest. Threatment of fertilizer with urea prill at this experiment was still the best. In this experiment, urea fertilizer lost due to submergence and washing was neglected]]>
<![CDATA[Keanekaragaman Komunitas Artropoda Predator Tanaman Padi yang Aplikasi Boinsektisida Berbasis Jamur Entomopatogen Daerah Rawa Lebak Sumatera Selatan ]]>
<![CDATA[khodijah khodijah]]>
<![CDATA[ Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 2 No. 1 (2013) ]]>
Publisher : <![CDATA[Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya ]]>
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DOI: 10.33230/JLSO.2.1.2013.35
<![CDATA[Species diversity and abundance of canopy-inhabiting and soil-dwelling arthropods could be affected by pesticide application. Population and the intensity of the rice stem borer attack can influence pesticide application. This study aimed to examine the effect of the application of solid and liquid bio insecticide entomopathogenic fungus Beauveria bassiana-based formulations on species diversity and abundance of predatory arthropods in inhabiting paddy canopy and soil dwelling. The research was conducted in fresh-water swamp rice cultivation in Pelabuhan Dalam village, Pemulutan district, Ogan Ilir regency in South Sumatra, from Mei to Agustus 2012.  The results showed that the application of liquid and solid bioinsecticida affected predatory arthropods diversity (H') at rice plant canopy. The highest effect was found in rice plant applied with liquid bio insecticide and the lowest effect with synthetic insecticides. Predatory arthropods diversity (H') in soil dwelling  was the highest in rice plants applied with solid bioinsecticide and the lowest with synthetic insecticides]]>
<![CDATA[Potensi Pengembangan Jagung di Sumatera Selatan ]]>
<![CDATA[Rudy Soehendi]]>;
<![CDATA[Syahri Syahri]]>
<![CDATA[ Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 2 No. 1 (2013) ]]>
Publisher : <![CDATA[Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya ]]>
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DOI: 10.33230/JLSO.2.1.2013.39
<![CDATA[The demand of corn continues to increase along with the increasing of populations and industries. Compliance efforts could be done by increasing productivity through extensification and intensification farming. Statistical data showed that corn harvested area and production in South Sumatra over the period 2000-2012 was very volatile but had a tendency to increase since 2006. The area of ​​land suitable for development of corn in South Sumatra, which amounted to 898,877 ha. This area consists of the intensification of land (205,709 ha), extensification of land (159,444 ha) and the diversification of land (533,724 ha). Land use for corn so far has been done in some districts/cities having dry land like Ogan Komering Ulu (OKU), OKU Timur, Ogan Ilir, Ogan Komering Ilir well as in several districts that have ups and downs like agro Banyuasin and Musi Banyuasin. South Sumatra AIAT demonstration plots showed that significant productivity of corn. In 2010, IPM demplot of Mulyasari village, sub district of Tanjung Lago, District of Banyuasin showed that productivity of Bima 4 (8.8 t/ha), Bima 5 (8.3 t/ha), and Bisi 2 (8.4 t/ha), whereas in 2011 Banyuurip demplot showed that productivity of Bima 3 (11.27 t/ha) and Sukmaraga (8.13 t/ha).]]>
<![CDATA[Oil Palm Fruit Bunch Yield Fluctuation between Dry and Rainy Season in Dry and Wetland ]]>
<![CDATA[Dwi Putro Priadi]]>;
<![CDATA[Nusyirwan Abuchatam]]>;
<![CDATA[J. Simangunsong]]>
<![CDATA[ Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 2 No. 1 (2013) ]]>
Publisher : <![CDATA[Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya ]]>
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DOI: 10.33230/JLSO.2.1.2013.31
<![CDATA[The objective of this research was to study how much yield difference of fresh fruit bunch of oil palm between dry and rainy season, and whether the yield difference much in dry land compare with wetland. The research was conducted in Entisol of PTPN VII Betung, and in Ultisol of PTP Hindoli, both in Sungai Lilin Regency. Yield data used in this study was data of year 2007−2010. Rainfall data during 2007−2010 showed no absolute dry month during dry seasons. The result of the study indicated that yield in dry land higher than in wetland either in dry season or in rainy season. Yield fluctuated between dry and rainy season either in dry land or in wetland. But, yield in rainy season did not consistently higher than in dry season. It was concluded that oil palm yield was influenced not only by soil water supply and rainfall quantity, but also internal and many other external factors.]]>
<![CDATA[Perbedaan Waktu Hauling Bagan Tancap terhadap Hasil Tangkapan di Perairan Sungsang, Sumatera Selatan ]]>
<![CDATA[Fauziyah Fauziyah]]>;
<![CDATA[Freddy Supriyadi]]>;
<![CDATA[Khairul Saleh]]>;
<![CDATA[Hadi Hadi]]>
<![CDATA[ Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 2 No. 1 (2013) ]]>
Publisher : <![CDATA[Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya ]]>
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DOI: 10.33230/JLSO.2.1.2013.36
<![CDATA[Anchovies (Stolephorus sp.) were the target species of stationary lift nets in Sungsang estuary of South Sumatra including others small pelagics. Fishermen of stationary lift net in Sungsang estuary operated before midnight until early morning. In order to obtain optimum catches, it was necessary to know when the right time to operate the stationary lift nets. The research objectives were 1) to analyze the effect of hauling time on the catch, and 2) to determine the optimum hauling time of stationary lift net in Sungsang estuary. The research was conducted in May 2012 with Experimental Fishing methods and completely random design models with treatment differences in hauling time was before midnight (21:00 to 23:59), around midnight (00:00 to 02:59), and after midnight (03:00 to 5:59). The fourth stationary lift net was operated for 3 days (3 trips). All data were processed using SPSS 17 software for windows. The results indicated that the hauling time significantly affected the catch and the optimum hauling time of stationary lift net in Sungsang estuary was around midnight (00:00 to 02:59).]]>
<![CDATA[Evaluasi Kerapatan Tanam dan Metode Pengendalian Gulma pada Budidaya Padi Tanam Benih Langsung di Lahan Sawah Pasang Surut ]]>
<![CDATA[Imelda S. Marpaung]]>;
<![CDATA[Yakup Parto]]>;
<![CDATA[Erizal Sodikin]]>
<![CDATA[ Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 2 No. 1 (2013) ]]>
Publisher : <![CDATA[Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya ]]>
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DOI: 10.33230/JLSO.2.1.2013.48
<![CDATA[Weed is one of limiting factors in the direct-seeded rice cultivation. Cost incurred by farmers to control weeds is still quite high. Various techniques of weed control need to be evaluated to obtain the most effective weed control in tidal land. The experiment was conducted in tidal land fields in the Telang  Sari village Tanjung Lago Sub District Banyuasin District during November 2012−March 2013. The experiment was arranged in a split plot design with planting density (K) as main plot and weeding methods (P) as sub plot. Five levels of planting density at 20, 40, 60, 80 and 100 kg rice seed/ha and four levels of weeding methods (manual weeding, dimethyl amine herbicide, penoxulam, and no weeding) were used in the experiment. The treatment was repeated 3 times and applied in 4×3m plot. Components of plant growth and yield of rice plants were measured and analyzed using Microsoft Excel and SPSS 17.0. The results showed that methods of weed control did not significantly affect plant height, plant biomass at 4 weeks after seeding and number of tillers, but significantly affect number of empty grain and filled grain per panicle. Both planting density and method of weed control significantly affect yield, but no significant interaction between treatments. Planting density did not significantly affect plant biomass from age 8 weeks after seeding. Yield of planting density at 80 kg seed/ha was not significantly different from the yield of 40−60 seed/ha. Method of weed control was significantly affecting the rice yield. Weed control can increase crop yields by 37.7%.]]>
<![CDATA[Pertumbuhan dan Hasil Padi pada Inseptisol Asal Rawa Lebak yang Diinokulasi Berbagai Konsorsium Bakteri Penyumbang Unsur Hara ]]>
<![CDATA[Wuriesyliane Wuriesyliane]]>;
<![CDATA[Nuni Gofar]]>;
<![CDATA[Abdul Madjid]]>;
<![CDATA[Hary Widjajanti]]>;
<![CDATA[Ni Luh Putu SR]]>
<![CDATA[ Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 2 No. 1 (2013) ]]>
Publisher : <![CDATA[Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya ]]>
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DOI: 10.33230/JLSO.2.1.2013.32
<![CDATA[The aim of this research was to study the effect of multisynergism bacterial isolates growth of rice plants as well as to obtain best composition of endophytic bacterial isolates, Azotobacter, Azospirilium and phosphate solubilizing bacteria in spurring growth of rice plants. This research was conducted in October 2012 to February 2013. This study arranged in a completely randomized design (All treatments of multiple bacterial isolates resulted in increase of soil N x P Content). The results showed that multibacterial isolates B (endophytic bacteria + Azospirillum) increased vegetative and generative growth of rice plants. Treatment G (composition of endophytic bacterial isolates, Azotobacter, Azospirilium and phosphate solubilizing bacteria) can increase rice yields. Some soil N and P content increased in response to all treatments of multiple bacterial isolates. The similar result was also observed in the N and P uptake that some multiple bacterial isolates improved N and P uptake of plants]]>
