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Jurnal Lahan Suboptimal

jlso
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Published by Universitas Sriwijaya

ISSN : 22526188 EISSN : 23023015 DOI : -

Core Subject : Agriculture,

Agriculture, Biological Sciences & Forestry

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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Articles 323 Documents

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Kajian Tanam Sistem Sonor terhadap Varietas Unggul Padi di Lahan Pasang Surut Sumatera Selatan (Studi Kasus di Daerah Pasang Surut Telang) NP. Sri Ratmini; Yohanes Yohanes
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 2 No. 1 (2013)
Publisher : Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya

Sonor system (direct seeding) was practiced by rice farmers in tidal land. Â 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. Â Varieties with the highest production were Inpari 10 and Inpari 13 of Â 8.35 t/ha and 8.19 t/ha respectively.

Efektifitas Pertumbuhan Benih Betok (Anabas testudineus) Menggunakan Vitamin C dan D sebagai Suplemen Pakan Helmizuryani Helmizuryani; Meika Puspitasari; Khusnul Khotimah
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 7 No. 2 (2018): JLSO
Publisher : Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya

Helmizuryani et al, 2018. Growth Effectivity of Climbing Perch (Anabas testudineus) Used Vitamin C and D as Feed Suplement. JLSO 7(2):164-173.Â The added of vitamin in feed is expected to increase the feed efficiency ,growth and survival of climbing perch (Anabas testudineus). This research was conducted to analysis the effectivity of vitamin supplement to increased the growth and survival of climbing perch (Anabas testudineus). The method used was an experimental method, with Completely Randomized Design (CRD), and three levels of treatment. The research carried out at Fish Hatchery Unit named Mulia on Plaju district, Palembang city. It's started from March until May 2018. The treatment used vitamin C and D gives the doses differentiation, that were V1 (doses of vitamin C 125 mg/kg feed), V2 (doses of vitamin D 375 mg/kg feed), and V3 (doses of vitamin C + D 125 mg/kg feed and 375 mg/kg feed). The growth analysis parameter was the growth of length, weight, and survival rate. The results that showed the best growth and survival of climbing perch (Anabas testudineus) were vitamin D and C, where best mass on V3 about 3,89 g. While the lowest on V1 about 2,7g. The best growth length on V3 about 4,61 cm, otherwise the weakest on V1 about 3,85 cm. The survival rate was highest on V3 about 88,33% and the lowest on V2 about 83,33%. Vitamin required for a fish body to carry out metabolism, but if overuses could be hipervitaminosis.Â

Tanggap Tanaman Jagung terhadap Aplikasi POC Urin Sapi dan Pupuk Anorganik di Lahan Pasang Surut Tipe Luapan C Ruli Joko Purwanto; Karlin Agustina; Yursida Yursida
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 3 No. 2 (2014)
Publisher : Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya

The research was conducted in the village of Banyu Urip at Banyuasin district from March to June 2013. This study aimed to examine the effect of organic manure of fermented cow urine (liquid organic fertilizer/ POC) and combined with different doses of inorganic fertilizer on the growth and yield of corn land in the tidal area overflow type C. This study uses a randomized block design consisting of 5 treatment was repeated 5 times. Each treatment unit with a plot size of 1.5 m x 10 m. Treatment in this study are as follows: J0 = 100% recommended dose of inorganic fertilizer without POC cow urine; J1 = 75% recommended dose of inorganic fertilizer + POC cow urine; J2 = 50% recommended dose of inorganic fertilizer + POC cow urine; J3 = 25% recommended dose of inorganic fertilizer + POC cow urine, and J4 = 100 % POC cow urine without inorganic fertilizers. The results of fertilizer application treatments using organic and inorganic fertilizers on maize showed significant effect on all observed variables. Further test results show that the inorganic fertilizer treatment J2 = 50% of the recommended dose of cow urine + POC gives the highest yield for plant height (162.22 cm), number of leaves, corn with cornhusk weight (187.70 g), the weight of the corn without cornhusk (177.54 g), dry shelled weight (139.05 g), weight of 100 grains (30.87 g) and the number of seed rows per ear (16.60), as well as significantly different to the other treatments.

Daya Adaptasi Mutan Padi Beras Merah dan Varietas padi Gogo di Tiga Lahan Sub Optimal di Indonesia Eries Dyah Mustikarini
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 5 No. 1 (2016): JLSO
Publisher : Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya

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Mustikarini et al, 2016.Â Daya Adaptasi Mutan Padi Beras Merah dan Varietas padi GogoÂ di Tiga Lahan Sub Optimal di Indonesia. JLSO 5(1):18-26.Yield trials mutant gamma irradiation results important to know the genetic stability with regard to the potential yield. Mutants adaptability in many locations and seasons that can be known whether the mutant proper grown in mosttype soil in Indonesia. This study aims to determine the ability of the mutant rice brown rice adapasi iiradiasi results of gamma rays and power yield. The research was conducted in January-December 2015. Yield trials conducted in ultisol soil, Village Balunijuk, Merawang, Bangka. Multilocation test on three location in Indonesian is Jombang, southwest Bangka, Bangka, Lampung, Batu and pontianak. The results conducted on the land southwest Ultisol, Village Balunijuk, Merawang, Bangka.In the dry season from April to October 2015. The results yield trials conducted on 6 mutant to-7 (M7) and four varieties showed MR1527 has the highest yield and is not significantly different from the varieties echo lake and Inpago 4. The test results multilocation showed that the mutants were able to adaptation in West Bangka regency ultisol land, land ultisol in Pontianak, and land grumusol in Jombang, East Java, in the dry season.

Keanekaragaman Vegetasi Rawa Di Kecamatan Tanjung Lago Siti Indah Oktaviani; Didi Jaya Santri; Endang Dayat
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 5 No. 2 (2016): JLSO
Publisher : Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya

Oktaviani, et al.Â Vegetation Diversity ofÂ Swamp in Tajung Lago District. JLSO 5(2):198-207.Â 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.

Ketahanan Varietas Padi Toleran Rendaman dan Responnya Terhadap Pemupukan Ikhwani Ikhwani
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 2 No. 1 (2013)
Publisher : Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya

Ikhwani. 2012.Â 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.Â Adoption of good agriculture practices such as nutrient managements for the varieties was expected to reduce yield declaining due to submergence.Â 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.Â Â 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).Â 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). Â 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.Â Submergence decreased plant growth rate, tiller number and delayed plant maturity.Â Decreased of plant height and tiller number for Ciherang sub 1 variety was the lowest.Â 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

Serangan Penyakit Rebah Kecambah Tanaman Cabai pada Tanah yang Berasal dari Persemaian Tanaman Petani di Lahan Rawa Lebak Kecamatan Pemulutan Kabupaten Ogan Ilir A Muslim; Suwandi Suwandi; Muhammad Yunus Umar
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 7 No. 1 (2018): JLSO
Publisher : Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya

Muslim et al, 2018. Damping-off of Chili Pepper Growing onÂ Seedbed Soil from Farmers in Swamp Area of Pemulutan, Ogan Ilir. JLSO 7(1):80-87.Â Research on disease severity of damping-off on chili seedling fromÂ used seedbed nursery soil from swampy area land in Pemulutan, Ogan Ilir was conducted in order to know what kindÂ of pathogen that attack chili seddling and how is severe itâ€™s severity. This study was aimed to identify the damping-off pathogens of chili pepper and to measure inoculum potential of seedbed soil from farmers in swamp area of Pemulutan, Ogan Ilir.Â The experiment was conducted using survey method. The sample was taken by purposive sampling on chili seedbed nursery from six farmers all along swampy area in Pemulutan, Ogan Ilir. The result showed that observation based on the sympton and laboratory assay on damping-off disease infected chili seedling was caused by Rhizoctonia solani. Â The percentage of Pre-emergence damping-off incidence was ranged from 6.5Ë—35.5%.Â The highest Pre-emergence damping-off incidence was observed on soil from Mr. Mimin and lowest incidence was found from Mr. Nukman. The percentage of post-emergence damping-off incidence was ranged from 0.5Ë—56.5%, where the highest percentage was observed from Mr. Rahmat and the lowest was observed from Mr. Joni. The percentage of disease severity of damping-off was ranged from 0.55Ë—28.75%, where the highest disease severity was also observed fromÂ Mr. Rahmat and the lowest one was observed from Mr. Nukman. Based on diseaseÂ severity of chili dampingË—off observed in this study was high, chili dampingË—off disease is important disease during providing seedling. This disease was potential to reduceÂ the quality and quantity of chili production.

Respirasi Tanah sebagai Indikator Kepulihan Lahan Pascatambang Batubara di Sumatera Selatan Dwi Setyawan; H. Hanum
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 3 No. 1 (2014)
Publisher : Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya

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.

Keragaan Agronomis dan Kelayakan Usahatani Kedelai yang Dibudidayakan Secara Monokultur dan Polikultur di Sumatera Selatan Renny Utami Somantri; Syahri Syahri; Tumarlan Thamrin
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 8 No. 2 (2019): JLSO
Publisher : Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya

Somantri RU, Syahri S, Thamrin T. 2019.Â Agronomic and economic analysis of soybeans which is grew by monoculture and polyculture systems in South Sumatra.Â Jurnal Lahan Suboptimal: Journal of Suboptimal Lands. 8(2):159-172.Â Â The presence of shade and other limiting factors in the crops of plantation plants will certainly affect the growth and soybean yield were compared by monoculture. The objective of the research was to know of agronomic performance and farming feasibility of soybeans which are cultivated by polyculture and monoculture systems. Soybeans were planted in two systems namely monoculture (soybean) and polyculture (soybean are intercropped with 3 years of rubber trees).Â Both of Dena 1 and Anjasmoro varieties were cropped in those systems. Soybeans are cropped by using planting machine (ATBJ) which has planting distance 20 cm x 40 cm (1-2 seeds per hole). Plants were fertilized with 50 kg Urea per ha, 150 kg TSP per ha, 150 kg KCl per ha, manure 2,000 kg per ha, and dolomite 1,000 kg per ha. Mower were used for harvesting. The results showed that the growth and soybean yield in monoculture system was better than the polyculture. Yield of Anjasmoro in monoculture was 15.35 ku per ha, whereas the polyculture was 4.72 ku per ha. Meanwhile, the productivity of Dena 1 was 14.80 ku per ha and 7.38 ku per ha in polyculture system. The polyculture had a higher value of the land equivalent ratio than monoculture of rubber trees. Economically, the two planting systems that were examined also deserve to be done by farmers, where the value R/C > 1

Persepsi Ibu Rumah Tangga dalam Pengelolaan Ekosistem Daerah Aliran Sungai Musi Palembang Linda Utami; Yetty Hastiana; Sri Wardhani
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 4 No. 2 (2015): JLSO
Publisher : Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya

Watershed (DAS) Musi is the source of water from various economic activities,social and cultural rights of the people of Palembang. Condition of the waters of the MusiRiver Basin has declined due to natural and human activities. This study aims to determinethe relationship between the perceived level of housewives in the management of aquaticecosystems downstream watershed Musi Palembang. Data were analyzed using descriptivewith scoring based on the average value of the number of questions raised housewife. Thestudy concluded perception housewife elementary school and junior high school graduateshave poor perception while housewives graduate high school / vocational and collegegraduates have a good perception of the management of aquatic ecosystems downstreamwatershed Musi Palembang

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Sabri Sudirman

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