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[Produksi spora Bacillus thuringiensis pada media limbah dengan penambahan tepung cangkang keong mas dan toksisitasnya terhadap Spodoptera litura Fabr. (Lepidoptera:Noctuidae) ]]>
<![CDATA[Yulia Pujiastuti]]>;
<![CDATA[Triyansyah Triyansyah]]>;
<![CDATA[Harman Hamidson]]>;
<![CDATA[Effendy Effendy]]>;
<![CDATA[Suparman Suparman]]>
<![CDATA[ Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 6 No. 2 (2017): JLSO ]]>
Publisher : <![CDATA[Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya ]]>
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DOI: 10.33230/JLSO.6.2.2017.294
<![CDATA[Pujiastuti et al, 2017. Production of Bacillus thuringiensis Spores in Agricultural Waste with Addition of Golden Snail Shell Powder and its Toxicity Against Spodoptera litura Fabr. (Lepidoptera: Noctuidae). JLSO 6(2):150-157.Armyworm or Spodoptera litura is an important pest on the cultivation of plants. Controlling by using biological agents such as Bacillus thuringiensis is an alternative to the use of chemical insecticides which cause a negative impact on insects and environment. B. thuringiensis-based bio insecticide can be reproduced by using agricultural waste with the addition of golden snail shell flour. The study was aimed to investigate the production of B. thuringiensis spores on agricultural waste media and the addition of golden snail shell flour and its toxicity to armyworm, as well. The research design was a completely randomized design with 10 treatments and 3 replications. Treatment were the media of agricultural waste: 50 mL coconut water, 50 mL of tofu liquid waste, 50 mL of rice wash water and mixture of three media (v/v/v, 1:1:1) with the addition of golden shell flour as much as 5 g and mineral salt of CaCl2, MgSO4, K2HPO4, KH2PO4. The results showed the production of bacterial spores ranged from 8.90x107 spores/mL to 9.51x107 spores/mL with the highest production in the mixed treatment of the three waste media (coconut water, tofu waste and rice laundry water). In this treatment the level of toxicity was 40% in larvae of armyworm. The weight of leaf feed consumed by armyworm at various treatments was ranged from 36.33 to 46.67 g/10 larvae. The addition of mashed shell flour to growth media of B. thuringiensis did not increase the number of spores.]]>
<![CDATA[Analisis Neraca Air dalam Ketersediaan Air Terhadap Perubahan Iklim di Beberapa Sub DAS Musi ]]>
<![CDATA[Puspitahati Puspitahati]]>;
<![CDATA[Edward Saleh]]>
<![CDATA[ Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 6 No. 2 (2017): JLSO ]]>
Publisher : <![CDATA[Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya ]]>
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DOI: 10.33230/JLSO.6.2.2017.194
<![CDATA[Puspitahati et al, 2017. Analysis of Water Balance in Water Supply Against Climate Change in some Sub-Watersheds Musi. JLSO 6(2):192-202. Rainfall and land cover in the Musi Sub-watershed affect water availability. Both of these components are inputs from the water balance which will affect fluctuations and water level so that it will affect evapotranspiration, run off, and flowrate. The purpose of the study was to determine how the effects of climate change on water availability in the Sub-watershed of Musi Watershed. This study was focus on four Sub-watersheds contained on the Musi river basin, namely Musi Sub-watershed, Komering Sub-watershed, Ogan Sub-watershed and Lematang Sub-watershed. This research was conducted at the Laboratory of Soil and Water Engineering, Department of Agriculture Technology, Faculty of Agriculture, Sriwijaya University from September 2013 to January 2014. Methods used in this research were descriptive method, the study of literature and secondary data taking, while the analysis was done with tabulation and graphs. The conclusion were 1) The availability of water was affected by changes in rainfall, population growth, and land cover types, 2) The highest rainfall was in Komering Sub-watershed equal to 105.23 mm/month, the highest run off was in Komering Sub-watershed equal to 33.67 mm/month, while the highest of evapotranspiration was in Lematang Sub-watershed equal to 121.69 mm/month. Thus, we can find out how the effects of climate change on water availability in sub-watersheds in the Musi River Basin.]]>
<![CDATA[Kelayakan Usahatani Padi Varietas Unggul Baru di Sawah Tadah Hujan Kabupaten Ogan Komering Ilir Provinsi Sumatera Selatan ]]>
<![CDATA[Maya Dhania Sari]]>;
<![CDATA[Harnisah Harnisah]]>;
<![CDATA[Suparwoto Suparwoto]]>
<![CDATA[ Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 6 No. 2 (2017): JLSO ]]>
Publisher : <![CDATA[Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya ]]>
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DOI: 10.33230/JLSO.6.2.2017.277
<![CDATA[Dhania Sari et al, 2017. Farm System Feasibility of New Prime Variaty in Rained Rice Field in Ogan Komering Ilir Regency South Sumatera Province. JLSO 6(2):120-125.Economic feasibility is farmers’ main consideration in implementing technology innovation in their rice farming business. The increase of farmers’ revenue can be obtained through the production improvement, and through the use of New Prime Variety which is one of the technology component that is able to increase rice production. Rainfed rice field in Ogan Komering Ilir (‘OKI’) Regency which covers 9,397 hectares is potential for further production optimality. This study aims to understand the revenue of rice farming business through the use of New Prime Variety in Rainfed Rice Field, and also to understand financial feasibility of New Prime Variety rice farming business in OKI Regency. The study method was undertaken by Plot Demonstration in Cahya Maju Village, Lempuing Sub District, OKI Regency in April - June 2016 for 2 hectares area. The data consists of primary and secondary data. The technology was implemented with Inpari 15, Inpari 20, Inpari 22, Inpari 27, Inpari 29, Inpari 30 Variety, and with Ciherang Variety as a comparison and also with the integrated plant management. The data analysis method is using tabulation and financial analysis. The study result shows that Inpari Variety has the highest financial gain with IDR 31,254,000. Economic wise, all varieties are financially feasibile, which is shown by the R/C ratio > 1.]]>
<![CDATA[Kajian Adaptasi Beberapa Varietas Padi Pada Dua Tipologi Lahan di Sulawesi Tengah ]]>
<![CDATA[Syafruddin Syafruddin]]>;
<![CDATA[Andi Irmadamayanti]]>;
<![CDATA[Saidah Saidah]]>
<![CDATA[ Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 6 No. 2 (2017): JLSO ]]>
Publisher : <![CDATA[Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya ]]>
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DOI: 10.33230/JLSO.6.2.2017.296
<![CDATA[Syafruddin et al, 2017. Study on Adaptation of Rice Varieties to Two Typical Lands in Central Sulawesi. JLSO 6(2):158-169. New paddy and rainfed rice fields have been potential resources in supporting sustainable rice self sufficiency. Improvemet on cultivation of adaptable varieties and good fertilization on the lands could increase production and land productivity. This research aimed to findout new varieties adaptable to the typical lands with high yield. The research was designed as randomized block design. The treatments consisted of tree superior varieties and one ekxisting variety. The results show that the areas are mainly less fertile with restriction factors: low in phosporus, low in organic content but high in iron. The crop respons are mainly excellent to both types of the land in Poso and Donggala Regencies. Banyuasin varietiety gave the highest production at both locations resulting in 9,13-9,27 tons/ha, followed by Mendawak and the existing varieties (Ciomas and Ciherang). The results increased harvest up to 2,32-9,93 tons/ha compared to those cropped with Inpara 3. The results also show that Banyuasin and the existing varieties are more adaptable and stable to both land types. Based on suitability evaluation, the farms are grouped into suitable with B/C ratio 1,60-3,57 compared to Inpara 3 with B/C ratio 1,01- 1,59.]]>
<![CDATA[Persepsi Petani terhadap Budidaya Cabai Sistem Pertanian Terapung di Desa Pelabuhan Dalam, Kecamatan Pemulutan, Ogan Ilir ]]>
<![CDATA[Hasbi Hasbi]]>;
<![CDATA[Benyamin Lakitan]]>;
<![CDATA[Siti Herlinda]]>
<![CDATA[ Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 6 No. 2 (2017): JLSO ]]>
Publisher : <![CDATA[Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya ]]>
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DOI: 10.33230/JLSO.6.2.2017.297
<![CDATA[Hasbi et al, 2017. Farmer Perception to Chilli Cultivtion in Floating Agricultural System in Pelabuhan Dalam Village, Ogan Ilir. JLSO 6(2):126-133.The purpose of this research was to utilize potential waste of local resource especially mineral bottle as a floating raft, to train farmer to construct it, to increase farm production, to socialize how to produce inexpensive, widely available, good quality and environmental friendly floating raft made of mineral bottle, and to evaluate farmers response. This research was conducted at Pelabuhan Dalam Village, Subdistrict of Pemulutan, District of Ogan Ilir. The step of this research were socialization to farmers, display the system of floating cultivation and farmers perception evaluation. The results showed that the system was prospective to be developed based on statements of interested farmers. One of the important finding was that the system was easy to maintenance. The farmers were optimistic that the system could be developed by them selves.]]>
<![CDATA[Prediksi Potensi Air Tanah untuk Optimasi Sawah Tadah Hujan dalam Menunjang Ketahanan Pangan ]]>
<![CDATA[Muhammad Yasar]]>;
<![CDATA[Mustaqimah Mustaqimah]]>;
<![CDATA[Yuswar Yunus]]>;
<![CDATA[Mahfuddin Mahfuddin]]>;
<![CDATA[Asrillah Asrillah]]>
<![CDATA[ Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 6 No. 2 (2017): JLSO ]]>
Publisher : <![CDATA[Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya ]]>
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DOI: 10.33230/JLSO.6.2.2017.290
<![CDATA[Yasar et al, 2017. Prediction of Ground Water Potential for Optimization of Rainfed Rice Field in Supporting Food Security. JLSO 6(2):170-175.In Simeulue Island, that has the existed paddy field and generally of that is  rainfed. Recently, to irrigate the paddy field with that percentage is expected enough by natural meet of the necessity of paddy field by receiving the potential precipitation. However, rising of the climate change has caused paddy field activity is not fully runned by only utilizing the precipitation and utilizing the surface water, as irrigatiom water resource is not possible because of geological difficulty. This article aims to find a breakthrough related to the problem of irrigation water insufficiency through utilization of natural resource potency in Simeuleu Island. Presenting is descriptively done using primary data by way of field measurement and literature review to obtain a beneficiary of groundwater as irrigation water resource. Data acquiring in this research uses geoelectrical method by setting the Wanner-Schlumberger configuration of Resistiviti meter ARES. Data were obtained from one spread that was east-west oriented by having 460 m spread length and 20 m spacing interval. The coordinate of spread is at initial point N 02°25’14.2â€/E 96°18’12.2†and at final point N 02°25’43.9â€/E 96°18’27.1. Based on the 2D resistivity cross section shows that Situbok village (STB) is generally obtained a low resistivity value which is 2-100 Ωm in range and dominantly expected as alluvium. Low resistivity value can be estimated as a conductive layer (aquifer) which commonly consists of groundwater. On the cross section of resistivity value, the conductive layer is the layer which has the resistivity value less than 16 Ωm and laterally and vertically is existed at 240-360 m and 45-94 m, respectively.]]>
<![CDATA[Penapisan Beberapa Padi Lokal dari Pulau Enggano Terhadap Ketahanan Salinitas ]]>
<![CDATA[Dwi Astuti]]>;
<![CDATA[Ade Nena Nurhasanah]]>;
<![CDATA[Satya Nugroho]]>;
<![CDATA[Amy Estiati]]>
<![CDATA[ Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 6 No. 2 (2017): JLSO ]]>
Publisher : <![CDATA[Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya ]]>
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DOI: 10.33230/JLSO.6.2.2017.282
<![CDATA[Astuti et al, 2017. Screening of Several Local Rice from Enggano Island to Salinity Tolerance. JLSO 6(2):134-141. Enggano Island, Bengkulu Province, has a lot of local rice germplasm that has been cultivated by people in Enggano Island that is more than 30% as farmer. Identification of local rice from Enggano Island against biotic and abiotic stresses, especially salinity stress is necessary. The identification can be used, among other things, as the information of the local rice planting that related to the rising sea level in Enggano Island which impact on the condition and the area of rice cultivation land, and as a source of finding for resistance genes against salinity stress for improvement of those local rice varieties. Aim of this study is preliminary screening of some local rice from Enggano Island to salinity stress in seed and germination stages. The analysis used Factorial Randomized Design, two factors, the first factor is salt concentration and and the second is local variety. The salt concentrations used were 0 millimolar NaCl, 250 millimolar NaCl, NaCl 275 millimolar and NaCl 300 millimolar and the rice sample used were 11 local rice of Enggano Island, NiponBare varieties as control of rice plants, Pokali as resistant control and IR29 varieties as susceptible controls. Rice seeds that used in this test are seed in seed stage and germination stage of 10-14 days old. This preliminary screening shows three local genotype of Enggano Island that tolerance to Salinity.]]>
<![CDATA[Karakterisasi Keragaan Agronomis Varietas Padi Sawah Tadah Hujan pada Pemupukan Nitrogen dan Perlakuan Air ]]>
<![CDATA[Zaqiah M. Hikmah]]>;
<![CDATA[Nurwulan Agustiani]]>;
<![CDATA[Sriyana Sriyana]]>;
<![CDATA[K. Hayashi]]>
<![CDATA[ Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 6 No. 2 (2017): JLSO ]]>
Publisher : <![CDATA[Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya ]]>
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DOI: 10.33230/JLSO.6.2.2017.291
<![CDATA[Hikmah et al, 2017. Characterization of Agronomic Traits on Two Rainfed Rice Varieties on Several Levels of Nitrogen Fertilizers and Water Treatments. JLSO 6(2):176-184.Rainfed rice varieties are expected to increase yield on rainfed fields. This research aim was to identify various agronomic characters including yield of rainfed rice varieties. It was conducted at the Sukamandi Field Station at rainy season 2016/2017, using a split split plot design with 4 replications. Water management as the main plot with two levels (I1: irrigated and I2: rainfed). Nitrogen (N) fertilizer dosage as subplot with three levels (P1: 0 kg N/ha, P2: 60 kg N/ha, and P3: 120 kg N/ha) and varieties as subplots with two levels (V1: Inpari 39 Tadah Hujan Agritan and V2: Inpari 41 Tadah Hujan Agritan). The results showed that water treatment and N dosage on each variety gave different response on their agronomic characters, including yield. Tiller numbers per hill was strongly influenced by water management and dosage of N fertilizer. In irrigated treatment, tiller number increased linearly increasing N dosage. In rainfed,Inpari 41 Tadah Hujan Agritan reach maximum tiller number with 80 N kg/ha which more efficient than Inpari 39 Tadah Hujan Agritan with 91,97 N kg/ha. Rice yield was significant effected by N fertilizer and the genetic trait of each variety. The yield of Inpari 41 Tadah Hujan Agritan was higher than the Inpari 39 Tadah Hujan Agritan. Inpari 41 Tadah Hujan Agritan reached 5.70 t/ha GKG and Inpari 39 Tadah Hujan Agritan 4.62 t/ha.]]>
<![CDATA[Aplikasi Teknologi Bioslurry di Desa Montongsari Kabupaten Kendal Provinsi Jawa Tengah ]]>
<![CDATA[Florentina Kusmiyati]]>;
<![CDATA[Bagus Herwibawa]]>;
<![CDATA[Susilo Budiyanto]]>
<![CDATA[ Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 6 No. 2 (2017): JLSO ]]>
Publisher : <![CDATA[Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya ]]>
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DOI: 10.33230/JLSO.6.2.2017.315
<![CDATA[Kusmiyati et al, 2017. Application of Bioslurry Technology at Montongsari Village, Kendal Regency Central Java Province. JLSO 6(2):106-112.The dependence of farmers on inorganic fertilizers is increasing from year to year. The urea requirement for agriculture in 2015 was 3.795.596 tons, increased to 4.007.463 tons in 2016. Many efforts have been made to reduce farmer’s dependence on inorganic fertilizers. The activity purpose of Student Community Service-Community Empowerment Learning was to reduce farmer’s dependence on inorganic fertilizers by using bioslurry at Montongsari village, Kendal regency, Central Java. The activities were training, mentoring and demonstration plot. Training and mentoring activities were processing of biogas wastes into solid and liquid bioslury fertilizers and their application on plant. The treatments of demonstration plot were without and with liquid bioslurry on growth and production of water spinach (Ipomoea aquatica). The result of the mentoring activities showed a biogas reactor (capacity of 4 m3) will produce 18 kg of bioslury from 20-40 kg of goat dung. Nitrogen content (N), C-organic  and C / N ratio of solid bioslury were 1.43%; 37.61% and 26.30, respectively. While nitrogen content of liquid bioslury was only 0.09%. There were no growth difference between aplication of liquid bioslurry and inorganic fertilizer on water spinach. The conclusion was  bioslury of biogas waste both solid and liquid bioslury can be utilized as organic fertilizer for plants.]]>
<![CDATA[Pemanfaatan Lahan Tadah Hujan untuk Budidaya Padi Unggul dalam Menghadapi Perubahan Iklim ]]>
<![CDATA[Rina Kartikawati]]>;
<![CDATA[Ika Ferry Yunianti]]>;
<![CDATA[Anicetus Wihardjaka]]>;
<![CDATA[Prihasto Setyanto]]>
<![CDATA[ Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 6 No. 2 (2017): JLSO ]]>
Publisher : <![CDATA[Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya ]]>
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DOI: 10.33230/JLSO.6.2.2017.195
<![CDATA[Kartikawati et al, 2017. Utilization of Rainfed Rice Areas for High Yielding Rice Cultivation on Climate Change. JLSO 6(2):142-149.Many efforts have been conducted by Indonesian government for national food supply and food security through rice cultivation on sub optimal lands in accelerating food sustainability particularly rice, maize and soybean. The rainfed area is an important sub optimal land which should be developed due to 26,5% of Indonesia rice production produced from cultivation system in those area. However, the cultivation in rainfed areas have challenges such as changing of rainfall pattern due to climate change. Therefore, to obtain the information of productivity from high yield rice varieties and methane emission in rainfed area, a study has been conducted by applying innovation of environmental friendly technology such as fertilizer use based on integrated cropping calendar. The study was carried out at Research Station of Indonesian Agriculture Environment Research Institute in Jakenan, which is one of rainfed area in Pati District, Central Java Province. The study was conducted on first growing season (GS 1) or rainy season by applying direct seeded system using rice seeder. Four rice varieties were used for this study, namely Ciherang, Dendang, Inpari 31 and Inpari 24. The study showed that productivity of four rice varieties were 5.92; 7.10; 5.06 and 7.41 t/ha, respectively. Methane emission was significant different among the varieties as 232; 319; 300 and 405 kg/ha/season, respectively.]]>
