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
Perbedaan Waktu Hauling Bagan Tancap terhadap Hasil Tangkapan di Perairan Sungsang, Sumatera Selatan Fauziyah, Fauziyah; Supriyadi, Freddy; Saleh, Khairul; Hadi, Hadi
Jurnal Lahan Suboptimal Vol 2, No 1 (2013)
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Abstract

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).
Kegiatan Agronomis untuk Meningkatkan Potensi Lahan Lebak menjadi Sumber Pangan Djafar, Zainal Ridho
Jurnal Lahan Suboptimal Vol 2, No 1 (2013)
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Abstract

Agronomical Activities to Increase the Potential of the Swampy Land To Be Food Sources.  Swampy land is potentially large enough to increase the production of food crops and holticulture. Out of the land area of about 13.2 milion hectares, only about 5 percent has been used intensively. The main problems in land use is the water system and soil fertility. Agronomic activities that can be done to improve the productivity of the land, among others, are improving the water system control, soil amelioration, cropping patterns and use of improved varieties. These activities can increase the production of food crops and holticulture. These activities should be carried out by considering environmental sustainability.
Pemanfaatan Lahan di bawah Tegakan Kelapa di Lampung Barus, Junita
Jurnal Lahan Suboptimal Vol 2, No 1 (2013)
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Abstract

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.
Kajian Tanam Sistem Sonor terhadap Varietas Unggul Padi di Lahan Pasang Surut Sumatera Selatan (Studi Kasus di Daerah Pasang Surut Telang) Ratmini, NP. Sri; Yohanes, Yohanes
Jurnal Lahan Suboptimal Vol 2, No 1 (2013)
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Abstract

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.
Potensi Pengembangan Jagung di Sumatera Selatan Soehendi, Rudy; Syahri, Syahri
Jurnal Lahan Suboptimal Vol 2, No 1 (2013)
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Abstract

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).
Evaluasi Kerapatan Tanam dan Metode Pengendalian Gulma pada Budidaya Padi Tanam Benih Langsung di Lahan Sawah Pasang Surut Marpaung, Imelda S.; Parto, Yakup; Sodikin, Erizal
Jurnal Lahan Suboptimal Vol 2, No 1 (2013)
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Abstract

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%.
Pengaruh Kombinasi Pupuk Organik dan Hayati Terhadap Pertumbuhan dan Produksi Galur Jagung (Zea mays. L) Hasil Seleksi Efisien hara Pada Lahan Kering Marginal Moelyohadi, Yopie; Harun, M. Umar; Munandar, Munandar; Hayati, Renih; Gofar, Nuni
Jurnal Lahan Suboptimal Vol 2, No 2 (2013)
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Abstract

This study aimed to study the growth and yield of maize crop nutrient  efficient  selection against  the  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 from  January  to May  2012.   The experimental design used was SplitPlotdesign with three replications.   . 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.  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.
Aplikasi Cycocel dalam Pengendalian Getah Kuning Buah Manggis (Garcinia mangostana L.) pada Lahan Kering Irianto, Irianto; Ichwan, Budiyati; Mapegau, Mapegau
Jurnal Lahan Suboptimal Vol 2, No 2 (2013)
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Abstract

The aim of this experiment was to gain the accurate concentration of cycocel growth for controlling of yellow latex mangoesteen in different age level on field water stress.  This experiment was conducted in Koto Patah village, Keliling Danau, Kerinci, Jambi and was done from June until November 2011 at the altitude of 800 - 900 meter above sea level. Factorial experiment was arranged in a randomized block design. The first factor was cycocel concentrations: 0; 1.500; 3.000; 4.500; dan 6.000 mg L-1.  The second factor was levels of age plants: <30; 30-50; and >50 years.  The data were analyzed by using analysis of variance and continued with BNT test at α=5%.  The results of experiment showed that: (1) the impact of cycocel on number and weight of perfect fruits depended on the age of manggoesteen; (2) manggoesteens which were less than 30 years old and treated with 4.500 mgL-1 cycocel could increase number and weight of perfect fruits; (3) manggoesteens which were older, 30-50 years old and above 50 years old needed less cycocel namely 1.500 mgL-1 for increasing number and weight of perfect fruis.
Remediasi Lahan Berpasir di Waisamu yang Ditanami Jagung Lokal melalui Aplikasi Kompos Ela Sagu Tatipata, Aurellia; Jacob, A.
Jurnal Lahan Suboptimal Vol 2, No 2 (2013)
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Abstract

Soil in Waisamu in generally was sandy and grow with Imperata cylindrica. The aim of our experiment were to sandy soil remedied through ela sagu compost, increase growth and production of local corn. The experiment was important in attempting to make the best of sandy soil function become agriculture soil, in order to cultivate and increasinggrowth and production of local corn to improve the sustanaibility of food supply.The experiment was conducted in Waisamu and consisted of two factors and three replications, using  Randomized Complete Block Design. The first factor was compost dosage,  consisting of five levels, i.e. 0 ton per hectare, 7.5 ton per hectare, 10 ton per hectare, 12.5 ton per hectare, 15 ton per hectare. The second factor was delima corn. The variables observed for compost quality were C/N ratio, mineral content N, P, K, Ca, Mg, Fe, and  initial macro and micro nutrient of soil. Height and leaf area of plant, length, weigh, diameter of corn ear and weight of dry shelled were observed for growth and production of plant. The results proved that C-organic content, macro and micro nutrient in compost can increase organic substance, macro and micro nutrient of soil,improving plant growth and local corn production. Ela sagu compost can remedied sandy soil. The higher dosage until 15 ton per hectare of the compost the higher of growth and productionof corn.
Kecernaan Pelepah Sawit Fermentasi dalam Complete Feed Block (CFB) untuk Sapi Potong Fariani, Armina; Abrar, Arfan; Muslim, Gatot
Jurnal Lahan Suboptimal Vol 2, No 2 (2013)
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Abstract

Palm midrib that was one of all agroindustries unused. It could be pontential as animal feeding. It could used as animal feeding with made it Complete Feed Block (CFB). This research aimed to study the fermentation of  palm  midrib in complete feed block (CFB) on the quality of degestibility in vitro. The research was conducted three phases, the first phase of the fermentation of  palm  midrib grounding  with White Root Fungy, the second stage of the manufacture of complete feed block (CFB) and the third stage of the proximate analysis and digestibility analysis, The research was in  Nutrition  and animal feeding  Laboratory,  Agriculture Faculty, Srivijaya University. This research used Completely Randomized Design (CRD) with two treatments and five replications consisting of Formula 1 and Formula 2, the parameters were observed dry matter, crude fiber, crude protein, Extract Either, BETN, dry matter digestibility coefficients, organic matter digestibility coefficients and the concentration of N-NH 3. The result of CFB formulation  were formula 1 TDN: crude protein (47.32%: 13.93%), formula 2 (48.41%: 7.96%), where the results of proximate analysis showed F1: 98.66% DM, LK 13:19%, 7:03% PK, SK 35.79%, 40.24% BETN, and F2: 98.41% DM, LK 16:43%, PK 6.25%  SK 24.06%, 49.50% BETN. Formulations showed that all treatments influence  non significantly (p> 0.05),  organic matter digestibility (85.00% vs. 85.70%), dry matter digestibility (59.42% vs. 59.62% vs. 16.72%) and the concentration of N-NH 3 (2.2% versus 1.8 %). The conclusion of this study is the complete feed block (CFB) can be used as a ruminant animal feeding, but should pay attention to aspects of quality and palatability.

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