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.
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Modifikasi Aplikasi Unsur Hara untuk Perbaikan Vigorasi Bibit Padi dalam Cekaman Terendam Suwignyo, Rujito Agus; Wijaya, Andi; Sihombing, Hesty; Gribaldi, Gribaldi
Jurnal Lahan Suboptimal Vol 1, No 1 (2012)
Publisher : Pusat Unggulan Riset Pengembangan Lahan Suboptimal (PUR-PLSO) Universitas Sriwijaya

Show Abstract | Original Source | Check in Google Scholar | Full PDF (579.231 KB) | DOI: 10.33230/JLSO.1.1.2012.2

Abstract

Suwignyo et al., 2012. Modification of Nutrient Application for the Improvement of Rice Seed Vigor in Submergence Threat. JLSO 1(1):1-11.In fresh water swamp rice cultivation, farmers  face the problem of high water levels during the early stage of plant growth, causing risky situation for seed. This study was aimed to obtain a method to increase rice seedling tolerance to submergence stress through improving fertilizer application  rice variety. The experimental design used was factorial completely randomized design with three replications. The factor consists of rice varieties (Inpara 3, Inpara 4, Inpara 5, BR 11 sub-1, IR 42, Rutti, Uffa, and Serendah Kuning), and fertilization treatment (NPK at planting without submergence; NPK with N at 7 days prior to submergence; NPK with N at one day after submergence; NPK + manure with N at 7 days prior to submergence; NPK + Manure + Si + Zn with N at 7 days prior to submergence; and NPK + Manure + Si + Zn with N at one day after submergence). The results showed that application of the proper nutrients could increase rice seedling vigor under submergence stress. At nursery stage, application of NPK, Manure, Si and Zn, with Nitrogen  after submergence would improve seedling vigor after recovery period. Submergence stress tolerant varieties showed higher ability to survive under submergence stress, and Inpara 4, Inpara 5, and BR11 Sub-1 performed better than Inpara 3. Serendah Kuning showed  better response to submergence stress than other local varieties. 
Pengaruh Perendamandan Pemupukan N Terhadap Pertumbuhan dan Produksi Padi Toleran Rendaman Ikhwani, Ikhwani
Jurnal Lahan Suboptimal Vol 1, No 1 (2012)
Publisher : Pusat Unggulan Riset Pengembangan Lahan Suboptimal (PUR-PLSO) Universitas Sriwijaya

Show Abstract | Original Source | Check in Google Scholar | Full PDF (658.668 KB) | DOI: 10.33230/JLSO.1.1.2012.4

Abstract

Ikhwani, 2012. The Effect of Submergence and N fertilizer Application on Plant Growth and Production of  Submerged Tolerant Rice Variety. JLSO 1(1):12-21.This study aimed at analyzing the effect of submergence and N fertilizer application on the plant growth and production of submergence tolerant rice variety. Problems and constrains of  rice production on flood prone and flash flood lowlandbecoming more frequents and more intens, causing submergence of the whole parts of rice crops for certain periods. The experiment was conducted to determine the effect of submergence and N fertilizer application on the growth of two treatment factors using block randomized design  with submergence tolerant variety Inpara 4 and 5.   An experiment was conducted in the greenhouse at Muara Experimental Station, Bogor in 2009. The treatments  consistedof three replications. The first factor was submergence rice variety Inpara 4 and 5 and the second factor was N management application, whereas (1) 200 kg Urea/ha, (2) 300 kg Urea/ha;  (3) 300 kg Ponska/ha + 100 kg Urea/ha; (4) 400 kg Ponska/ha (2x); (5) Briquette Urea  (300 kg Urea/ha) dan (6) 300 kg Urea/ha  +  Silikat (400 kg SiPPadi HS/ha).  Result of the experiment showed that   submergence for 14 to 24 DAP (10 days) on submergence tolerant rice variety combined with Briquette Urea (300 kg urea/ha  wrapped in strawpaper)  has increased the percentage of tiller number up to 98,9 percent , increased the highest total grain weight  for submergence tolerant rice  up to 41,2 gr per pot and increased in the proportion of  wet leave weight growth rate for  submersion treatment up to 1,4g per pot than that  without submergence. 
Ameliorasi Tanah Sulfat Masam Potensial untuk Budidaya Tanaman Bawang Merah (Allium ascalonicum L.) Yenni, Yenni
Jurnal Lahan Suboptimal Vol 1, No 1 (2012)
Publisher : Pusat Unggulan Riset Pengembangan Lahan Suboptimal (PUR-PLSO) Universitas Sriwijaya

Show Abstract | Original Source | Check in Google Scholar | Full PDF (476.682 KB) | DOI: 10.33230/JLSO.1.1.2012.3

Abstract

Yenni, 2012. Amelioration of Potential Sulphidic Soil for Onion Cultivation (Allium ascalonicum L.). JLSO 1(1): 40-49.Lowlands contains sulphidic soil which is  potential for crop production, yet acidic and lack of nutrients which inhibits plant growth. This study was aimed to identify the effects of liming of sulphate  soil on the growth of Onion (Allium ascalonicum L.). This study was carried out using factorial completely randomized design with six replicates on sulphate soil. The experiments were performed on poly bag (5 kg soil/poly bag/plant in acid sulphate soil. The  first factor was soil pH 4,05 (S1) and 5,02 (S2). The second factor was lime dosage(K0), 1 ton/ha (K1), 2 ton/ha (K2), and 3 ton/ha (K3). The plants were harvested after two month. Parameters measured were the growth of onion such as plant height, leaf number, bulb number, root length, fresh weight and dry weight of tuber. Secondary metabolite content of tuber was determined using gas chromatography. Data obtained werewas analyzed using ANOVAs, followed by Duncan Multiple Range Test (DMRT) with 5% significant level. Data analysis revealed that the combination of soil pH and lime dosage  has  significant effect on growth and yield of onion. Based on GC analysis, two tons/ha liming in sulphate soil gave the highest secondary metabolite contents. 
Karakter Agronomi dan Toleransi Varietas Cabai Merah Akibat Genangan pada Fase Generatif Susilawati, Susilawati; Suwignyo, Rujito Agus; Munandar, Munandar; Hasmeda, Mery
Jurnal Lahan Suboptimal Vol 1, No 1 (2012)
Publisher : Pusat Unggulan Riset Pengembangan Lahan Suboptimal (PUR-PLSO) Universitas Sriwijaya

Show Abstract | Original Source | Check in Google Scholar | Full PDF (416.366 KB) | DOI: 10.33230/JLSO.1.1.2012.5

Abstract

Susilawati et al., 2012. Agronomic Characteristics and Tolerance of Red Chili Varieties under Water Logging Stress during Generative Phases. JLSO 1(1):22-30.The research objective was  to evaluate the responses of growth and tolerance of red chilli under waterlogging stress during generative phases. Experiments were conducted in village   Alang-alang Lebar Palembang, South Sumatra, from April  to November 2010. Experimental design used was split plot with three replications. The main plot was waterlogging for 1, 2, 3 and 4 days. The subplot was  red chili varieties consisted of Kiyo F1, Bravo F1, Taro F1, Lembang 1, Laris, Riawan, Mario and Kusuma. The results showed that the maximum period of waterlogging  of Red chilli plants in the generative phase was three days. Increased duration of waterloggingduring the generative phase significantly decreased the ability of plants to survive, the number of live plants,  plant height and the number of branches. Based on the agronomic characteristics found in the study, the variety that is the most  tolerant to  waterlogging  during the generative phase was Kiyo F1. 
Pemanfaatan Berbagai Jenis Pupuk Hayati pada Budidaya Tanaman Jagung(Zea mays. L) Efisien Hara di Lahan Kering Marginal Moelyohadi, Yopie; Harun, M. Umar; Hayati, Renih; Gofar, Nuni
Jurnal Lahan Suboptimal Vol 1, No 1 (2012)
Publisher : Pusat Unggulan Riset Pengembangan Lahan Suboptimal (PUR-PLSO) Universitas Sriwijaya

Show Abstract | Original Source | Check in Google Scholar | Full PDF (402.47 KB) | DOI: 10.33230/JLSO.1.1.2012.6

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Moelyohadi et al., 2012. The Use of  Various Types of Biofertilizers on Cultivation of  Nutrient Efficient Corn Genotypes(Zea mays L.  in Marginal Dry Land. JLSO 1(1):31-39.The study aimed at  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  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 genotypes  B-41 (G1), L-164 (G2), S-194 (G3)  and onehybrid variety:BISI-816 (G4) as agenotypecomparator. Alltreatmentunitswere givenlow dosesof chemicalfertilizerthat is 50% of theATPstandarddose(200kgUrea, SP-36 50kgand 25kgKClha-1).  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 production  of 7.27 tons of dry  seed /acre  and the combined treatment of mycorrhizal fertilizer and genotype B-41 gave the highest production  of 8.57 tons of dry seed / acre 
Karakteristik dan Kemelimpahan Nepenthes di Habitat Miskin Unsur Hara Mardhiana, Mardhiana; Parto, Yakup; Hayati, Renih; Priadi, Dwi Putro
Jurnal Lahan Suboptimal Vol 1, No 1 (2012)
Publisher : Pusat Unggulan Riset Pengembangan Lahan Suboptimal (PUR-PLSO) Universitas Sriwijaya

Show Abstract | Original Source | Check in Google Scholar | Full PDF (314.029 KB) | DOI: 10.33230/JLSO.1.1.2012.7

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Mardhiana et al., 2012. The Characteristics and Abundance of Nepenthes of Nutrient-poor Habitats. JLSO 1(1):50-56.This research aimed at assesing the characteristics and abundanceof Nepenthespopulation in nutrient-poor habitats. This study was conducted at two locations, Talang Kelapa village, Banyuasin Km 10, and Pasir Putih village, Sukajadi, Banyuasin Km 18. Observations were made on  the soil chemical and physical properties, morphology  and population abundance  of Nepenthes. The result showed  that N. mirabilis was the only species found in  Talang Kelapa and Pasir Putih.  Nepenthes upwere able to grow well in very poor soil nutrients. Natural habitat in Pasir Putih with sandy soil  and water log condition gave better effect on the morphology and abundance in than in Talang Kelapa with  clay soil and dry.  The ratio of  Nepenthes abundance in Pasir Putih to that in Talang Kelapa was 3:2. 
Artropoda Predator Penghuni Ekosistem Persawahan Lebak dan Pasang Surut Sumatera Selatan Khodijah, Khodijah; Herlinda, Siti; Irsan, Chandra; Pujiastuti, Yulia; Thalib, Rosdah
Jurnal Lahan Suboptimal Vol 1, No 1 (2012)
Publisher : Pusat Unggulan Riset Pengembangan Lahan Suboptimal (PUR-PLSO) Universitas Sriwijaya

Show Abstract | Original Source | Check in Google Scholar | Full PDF (439.668 KB) | DOI: 10.33230/JLSO.1.1.2012.8

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Khodijah, S. Herlinda, C. Irsan, Y. Pujiastuti, R. Thalib. 2012. Predatory Arthropods InhabitingFresh Swamp and Tidal Lowland Ecosystem in South Sumatra. J. Lahan Suboptimal 1(1):57-63 Research of predatory arthropods inhabiting fresh swamp and tidal land ecosystem in South Sumatra used survey method. The objective of this reasearch was to identify families of the predatory arthropods found in the fresh swamp and tidal land ecosystem in South Sumatra. Survey occured in January up to March 2012. The predatory arthropods were sampled using net and pitfall trapping. The predatory arthropods found were Insecta and Arachnida. Ordo of predatory insects found were Coleoptera, Dermaptera, Diptera, Hemiptera, Orthoptera, Odonata, and Hymenoptera, while predatory spiders found were ordo Araneae. Predatory arthropods inhabiting paddy canopy were almost trapped by net traps, while soil dwelling arthropods were trapped by pitfall traps. The dominant predatory insects found were families of Carabidae and staphylinidae, while dominant family of spiders was Lycosidae. Key species of the predatory artrhopods found from the fresh and tidal land ecosystem were Pheropsophus occipitalis, Paederus fuscipes, Coccinella arcuata, Pardosa pseudoannulata, Oxyopes sp., Pardosa sumatrana, Verania lineata, Broscus sp., and Chelisoches sp.
Inventarisasi Potensi Daya Saing Spasial Lahan Rawa Lebak untukPengembangan Pertanian di Sumatera Selatan Waluyo, Waluyo; Alkasuma, Alkasuma; Susilawati, Susilawati; Suparwoto, Suparwoto
Jurnal Lahan Suboptimal Vol 1, No 1 (2012)
Publisher : Pusat Unggulan Riset Pengembangan Lahan Suboptimal (PUR-PLSO) Universitas Sriwijaya

Show Abstract | Original Source | Check in Google Scholar | Full PDF (407.465 KB) | DOI: 10.33230/JLSO.1.1.2012.9

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Waluyo, Alkasuma, Susilawati, Suparwoto. 2012 Spatial Inventory of Potential Competitiveness Swamp Land for Agricultural Development in South Sumatra. J. Lahan Suboptimal 1(1):64-71. Swampy marsh land has great competitive advantage for farmland development.The purposes of this study were 1)to identify the spread of potential swampy marsh land for food crops in major production centers; 2)to understand thecontent, quantity,and distribution of minerals essential for health in the low lands of South Sumatra. Data were collected through some surveys using transects (toposequen), including delineation of maps, flooding/ground water, state of the microrelief, soilbase material, land use, and land surface condition. Ground observations were based on the Soil Survey Manual. The results indicated that Sungai Pinang and Rantau Panjang has three types of swampy land, namely shallow swampy marsh, mid marsh low lands, and swamps in the low lands. Swampy marsh as the potential competitiveness for its antioxidant mineral deposit (Fe, Mn, Cu, Zn, and Se) can produce good functional food products such as Padi seputih, Pelita Rampak, Ketan Sinde, Padi Petek. These varieties have considerably high antioxidant mineral. Therefore, the use of swampyland must be directed. Shallow and intermediate wetlands can be used for rice, pulses and vegetables whereas deep wetlands are suitable for fishing.
KajianKehilangan Hasil Pada Pengeringan dan Penggilingan Padi di Lahan Pasang Surut Sumatera Selatan Raharjo, Budi; Hadiyanti, Dedeh; Kodir, Kgs. A.
Jurnal Lahan Suboptimal Vol 1, No 1 (2012)
Publisher : Pusat Unggulan Riset Pengembangan Lahan Suboptimal (PUR-PLSO) Universitas Sriwijaya

Show Abstract | Original Source | Check in Google Scholar | Full PDF (677.01 KB) | DOI: 10.33230/JLSO.1.1.2012.10

Abstract

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%).
Pengelolaan Lahan Rawa Gambut Terdegradasi Melalui Pengayaan Karbon Mendukung Ketahanan Pangan Beras Asmani, Najib
Jurnal Lahan Suboptimal Vol 1, No 1 (2012)
Publisher : Pusat Unggulan Riset Pengembangan Lahan Suboptimal (PUR-PLSO) Universitas Sriwijaya

Show Abstract | Original Source | Check in Google Scholar | Full PDF (371.792 KB) | DOI: 10.33230/JLSO.1.1.2012.11

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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.

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